title stringlengths 10 172 | question_id int64 469 40.1M | question_body stringlengths 22 48.2k | question_score int64 -44 5.52k | question_date stringlengths 20 20 | answer_id int64 497 40.1M | answer_body stringlengths 18 33.9k | answer_score int64 -38 8.38k | answer_date stringlengths 20 20 | tags list |
|---|---|---|---|---|---|---|---|---|---|
Python: Comparing the speed of NumPy and SymPy ufuncified functions | 39,118,096 | <p>Just wrote a code for comparison of speed of calculation for a function which is in written as <code>numpy</code> and a function which uses <code>ufuncify</code> from <code>sympy</code>:</p>
<pre><code>import numpy as np
from sympy import symbols, Matrix
from sympy.utilities.autowrap import ufuncify
u,v,e,a1,a0 = s... | -1 | 2016-08-24T08:24:41Z | 39,121,609 | <p>After further exploration it seems that <code>ufuncify</code> and regular <code>numpy</code> functions will give more or less the same speed of computation. Using <code>numba</code> or printing to <code>theano</code> function did not result in a faster code. So the other option to make things faster is either <code>... | 0 | 2016-08-24T11:06:27Z | [
"python",
"python-2.7",
"numpy",
"sympy"
] |
python type error after third time in loop in line """print (seql, seq)""" following line with """seql = len(seq)""" | 39,118,135 | <pre><code>>>> run
Python 3.5.1 (default, Dec 2015, 13:05:11)
[GCC 4.8.2] on linux
1 [1]
2 [1, 1]
Traceback (most recent call last):
File "python", line 45, in <module>
File "python", line 38, in conwayseq
File "python", line 10, in newseq
TypeError: object of type 'NoneType' has no len()
</code><... | 0 | 2016-08-24T08:26:23Z | 39,118,441 | <p>The issue is with the logic of your code. Check below line:</p>
<pre><code>nseq = newseq(nseq)
</code></pre>
<p>Function <code>newseq()</code> do not have any return type. So, <code>nseq</code> is getting set as <code>None</code> (<em>default return type</em>). Next time when your <code>for</code> loop makes a cal... | 0 | 2016-08-24T08:41:42Z | [
"python",
"types"
] |
Django form in the base template. How to display validation error? | 39,118,136 | <p>I use Django 1.8.14. I have <code>Search</code> form on every page of my website. I pass <code>Search</code> form to base template through context processor. Each time form sends data to <code>/search/</code> view. And there is a problem. Django raises <code>ValidationError</code> on form, but it doesn't display any... | 0 | 2016-08-24T08:26:26Z | 39,118,312 | <p>You need to pass the form once it is bound to the data (the POST request) and validated; right now your context only has a blank form which is why no errors are being displayed.</p>
<pre><code>from django.shortcuts import redirect
def search(request, template):
search_form = SearchForm(request.POST or None, re... | 1 | 2016-08-24T08:35:41Z | [
"python",
"django",
"python-2.7",
"django-forms"
] |
Django form in the base template. How to display validation error? | 39,118,136 | <p>I use Django 1.8.14. I have <code>Search</code> form on every page of my website. I pass <code>Search</code> form to base template through context processor. Each time form sends data to <code>/search/</code> view. And there is a problem. Django raises <code>ValidationError</code> on form, but it doesn't display any... | 0 | 2016-08-24T08:26:26Z | 39,122,019 | <p>If you Django is raising <code>validation error</code> how you want it to and now all you need is to <strong>display</strong> that validation error on your <code>html templates</code> then i suppose what you are looking for is <strong>Django Messages</strong></p>
<p>See the official documentation for the same -> <a... | 1 | 2016-08-24T11:25:11Z | [
"python",
"django",
"python-2.7",
"django-forms"
] |
wsdl file parsing results in 'Unable to resolve type {http://schemas.xmlsoap.org/soap/encoding/}Array.' | 39,118,241 | <p>First of all, I don't understand the XML and can't figure what problem I am having. I tried using couple of python libraries but most of them resulted in this error.
For current setup I am using 'zeep' python library. Using the command for validating file:</p>
<pre><code>python -mzeep ss.xml
</code></pre>
<p>I am ... | 1 | 2016-08-24T08:31:36Z | 39,123,839 | <p>For anyone who is having the same problem(and it's a known problem), the wsdl needs to import the soap encoding, but it doesn't happen. So see the snippet and use the <code><types></code> declaration in the file/response of the server:</p>
<pre><code><definitions targetNamespace="TARGET_NAMESPACE" ...>
... | 0 | 2016-08-24T12:51:03Z | [
"python",
"xml",
"soap",
"wsdl"
] |
Resample a 'tidy' dataframe with pandas | 39,118,308 | <p>I have timestamped data with two columns of interest: a 'label' and a count. I would like to create a time series with the sums per label per, say, day. Can I use <code>resample</code> to achieve this?</p>
<p>Concrete example:</p>
<pre><code>import pandas as pd
import numpy as np
from itertools import cycle
idx =... | 2 | 2016-08-24T08:35:25Z | 39,118,413 | <p>I think you need <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.groupby.html" rel="nofollow"><code>groupby</code></a> with <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.core.groupby.DataFrameGroupBy.resample.html" rel="nofollow"><code>DataFrameGroupBy.resample... | 2 | 2016-08-24T08:40:33Z | [
"python",
"pandas"
] |
How to distinguish processes in Multiprocessing.Pool? | 39,118,353 | <p>I'm using python <code>multiprocessing</code> to fork some child processes to run my jobs. There are two demands:</p>
<ol>
<li>I need to know the pid of the child process in case of killing it if I want.</li>
<li>I need callback to do some stuffs after job has finished. Because those stuffs use a lock in parent pro... | 0 | 2016-08-24T08:37:52Z | 39,158,063 | <p>Finally I find a solution: use <code>multiprocessing.Event</code> instead.</p>
<p>Since <code>multiprocessing.Pool</code> can't tell me which process is allocated, I can't record it so that I can kill it according to job id whenever I want.</p>
<p>Fortunately, <code>multiprocessing</code> provides <code>Event</cod... | 0 | 2016-08-26T03:58:36Z | [
"python",
"linux",
"multiprocessing",
"fork",
"python-multiprocessing"
] |
Sorting a list of xy-coordinates in python | 39,118,367 | <p>I have a long list of xy coordinates like the following:</p>
<pre><code>>>> data = [(x1,y1),(x2,y2),(x3,y3),...]
</code></pre>
<p>Every pair of coordinates represents a point of a contour in an image and I would like to sort them like they are arranged along the contour (shortest path). The shape of the c... | -2 | 2016-08-24T08:38:43Z | 39,118,898 | <p>If your shape is 'simple' as your example, you can compute the center of your cloud of points (average of X and Y). Sort your points by the angle from the center to the points and if two of them share the same angle, sort them by their distance from the center. That should do the trick.</p>
<pre><code>center = func... | 0 | 2016-08-24T09:02:30Z | [
"python",
"sorting",
"coordinates",
"shortest-path"
] |
Sorting a list of xy-coordinates in python | 39,118,367 | <p>I have a long list of xy coordinates like the following:</p>
<pre><code>>>> data = [(x1,y1),(x2,y2),(x3,y3),...]
</code></pre>
<p>Every pair of coordinates represents a point of a contour in an image and I would like to sort them like they are arranged along the contour (shortest path). The shape of the c... | -2 | 2016-08-24T08:38:43Z | 39,118,932 | <p>The problem you described is similar to finding a convex hull. You can have a look <a href="http://tomswitzer.net/2009/12/jarvis-march/" rel="nofollow">here</a></p>
| 0 | 2016-08-24T09:04:40Z | [
"python",
"sorting",
"coordinates",
"shortest-path"
] |
Sorting a list of xy-coordinates in python | 39,118,367 | <p>I have a long list of xy coordinates like the following:</p>
<pre><code>>>> data = [(x1,y1),(x2,y2),(x3,y3),...]
</code></pre>
<p>Every pair of coordinates represents a point of a contour in an image and I would like to sort them like they are arranged along the contour (shortest path). The shape of the c... | -2 | 2016-08-24T08:38:43Z | 39,120,360 | <p>You can do this by selecting a random point and find the next points from there like</p>
<pre><code>def distance(a,b):
pass
#propably something with math.hypot for euclidean norm
points=set([(1,2),(2,3)])
current=points.pop()
path=[current]
while points:
current=min(points,key=(lambda p: distance(curre... | 0 | 2016-08-24T10:09:25Z | [
"python",
"sorting",
"coordinates",
"shortest-path"
] |
Sorting a list of xy-coordinates in python | 39,118,367 | <p>I have a long list of xy coordinates like the following:</p>
<pre><code>>>> data = [(x1,y1),(x2,y2),(x3,y3),...]
</code></pre>
<p>Every pair of coordinates represents a point of a contour in an image and I would like to sort them like they are arranged along the contour (shortest path). The shape of the c... | -2 | 2016-08-24T08:38:43Z | 39,243,504 | <p>Update:
meanwhile I solved it by using OpenCV's findContours - that outputs the coordinates like I whished! </p>
| 0 | 2016-08-31T07:39:17Z | [
"python",
"sorting",
"coordinates",
"shortest-path"
] |
slice operation for numpy in python2 | 39,118,401 | <p>If I have a <em>numpy</em> array <strong>X</strong>:</p>
<pre><code>array([[ 0.13263767, 0.23149757, 0.57097612],
[ 0.49629958, 0.67507182, 0.6758823 ]])
</code></pre>
<p>And an index array <strong>Y</strong>:</p>
<pre><code>array([1, 2, 1])
</code></pre>
<p>I could use <strong>X[0:,Y]</strong> to ind... | 2 | 2016-08-24T08:40:06Z | 39,118,614 | <p>You can use fancy indexing to achieve that:</p>
<pre><code>>>> X[[[0], [1]], Z]
array([[ 0.23149757, 0.57097612, 0.23149757],
[ 0.49629958, 0.67507182, 0.6758823 ]])
</code></pre>
<p>The trick is that the array indexing the first dimension must broadcast with the one indexing the second one. In... | 3 | 2016-08-24T08:50:13Z | [
"python",
"arrays",
"numpy"
] |
How to count rows that share a unique field in pandas | 39,118,521 | <p>Imagine I have a dataframe that stores the books that individual people have read and their scores for them:</p>
<pre><code>df = pd.DataFrame({
'person' : [1,1,2,2,3,3],
'book' : ['dracula', 'frankenstein', 'dracula', 'frankenstein', 'dracula', 'rebecca'],
'score':[10,11,12,13,14,15]
})
df
book pe... | 3 | 2016-08-24T08:45:08Z | 39,118,598 | <p>You can construct a pivot table and multiply it with its transpose:</p>
<pre><code>pvt = pd.pivot_table(df, index='book', columns='person', aggfunc=len, fill_value=0)
pvt.dot(pvt.T)
Out:
book dracula frankenstein rebecca
book
dracula 3 2 ... | 3 | 2016-08-24T08:49:30Z | [
"python",
"pandas",
"pivot",
"pivot-table"
] |
How to count rows that share a unique field in pandas | 39,118,521 | <p>Imagine I have a dataframe that stores the books that individual people have read and their scores for them:</p>
<pre><code>df = pd.DataFrame({
'person' : [1,1,2,2,3,3],
'book' : ['dracula', 'frankenstein', 'dracula', 'frankenstein', 'dracula', 'rebecca'],
'score':[10,11,12,13,14,15]
})
df
book pe... | 3 | 2016-08-24T08:45:08Z | 39,118,642 | <p>Another solution with <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.crosstab.html" rel="nofollow"><code>crosstab</code></a>:</p>
<pre><code>df = pd.crosstab(df.book, df.person)
print (df.dot(df.T))
book dracula frankenstein rebecca
book
drac... | 2 | 2016-08-24T08:51:27Z | [
"python",
"pandas",
"pivot",
"pivot-table"
] |
edit: how to design and implement an experiment to do benchmark comparisons of the two queue implementations in python | 39,118,587 | <p>I am looking for pointers on how to design an experiment to compare the behaviour of <code>queue</code> implementations one done with <code>python list</code> and the other <code>python queue abstract data type</code> using a benchmark.</p>
<p>Here is some code I could put up based on the how I understood <code>amo... | 0 | 2016-08-24T08:48:53Z | 39,118,788 | <p>You could use Python time.time() to measure execution time for each queue.
the test should be run multiple times with at least 1000 elements in the structure to have a "decent" execution time.</p>
<pre><code>import time
t1 = time.time()
for i in range(1, 50000):
m.enqueue(i)
t2 = time.time()
exec_time = t2-t1
</... | 0 | 2016-08-24T08:57:15Z | [
"python",
"amortized-analysis",
"amortization"
] |
Pandas disassemble column | 39,118,689 | <p>From the documentaiton of pandas <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.to_datetime.html" rel="nofollow">http://pandas.pydata.org/pandas-docs/stable/generated/pandas.to_datetime.html</a> a assembly of multiple columns e.g. date columns to a single one is explained.</p>
<pre><code>>... | 2 | 2016-08-24T08:53:08Z | 39,118,825 | <p>You can access the constituent parts of a datetime using the <a href="http://pandas.pydata.org/pandas-docs/stable/api.html#datetimelike-properties" rel="nofollow"><code>dt</code></a> accessor, note that <code>to_datetime</code> returns a <code>Series</code> so I'm converting to a df in order to add columns:</p>
<pr... | 2 | 2016-08-24T08:59:27Z | [
"python",
"date",
"pandas",
"dataframe",
"split"
] |
Pandas disassemble column | 39,118,689 | <p>From the documentaiton of pandas <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.to_datetime.html" rel="nofollow">http://pandas.pydata.org/pandas-docs/stable/generated/pandas.to_datetime.html</a> a assembly of multiple columns e.g. date columns to a single one is explained.</p>
<pre><code>>... | 2 | 2016-08-24T08:53:08Z | 39,119,245 | <p><code>.dt.strftime('%Y %-m %-d').str.split()</code> will reverse the operation</p>
<pre><code>df = pd.DataFrame({'year': [2015, 2016],
'month': [2, 3],
'day': [4, 5]})
pd.to_datetime(df)
0 2015-02-04
1 2016-03-05
dtype: datetime64[ns]
</code></pre>
<hr>
<pre><c... | 2 | 2016-08-24T09:19:56Z | [
"python",
"date",
"pandas",
"dataframe",
"split"
] |
Division of two dataframe with Group by of a Column Pandas | 39,118,708 | <p>I have a dataframe df_F1 : </p>
<pre><code>df_F1.info()
</code></pre>
<blockquote>
<pre><code><class 'pandas.core.frame.DataFrame'>
Int64Index: 2 entries, 0 to 1
Data columns (total 7 columns):
class_energy 2 non-null object
ACT_TIME_AERATEUR_1_F1 2 non-null float64
ACT_TIME_AERATEUR_1_F3 ... | 0 | 2016-08-24T08:53:42Z | 39,118,883 | <p>You could use <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.divide.html" rel="nofollow"><code>DF.divide</code></a> to divide the required columns with their <code>sum</code> along the same columns as shown:</p>
<pre><code>df.iloc[:,1:4] = df.iloc[:,1:4].divide(df.sum(axis=1), axis=... | 2 | 2016-08-24T09:02:01Z | [
"python",
"pandas",
"dataframe",
"group-by"
] |
insert special characters in mysql database using python angularjs | 39,118,967 | <p>How do I insert a value in MySQL that consist of single quotes. i.e</p>
<p>"I am joy's brother and trying to get a 'job' "</p>
<p>The single quote is creating a problems.When I am trying to write some text using single quotes in text field. I am getting an error in the console i.e,.</p>
<p>SyntaxError: Unexpect... | -1 | 2016-08-24T09:06:41Z | 39,119,023 | <p>You're looking for: </p>
<pre><code>conn.escape_string()
</code></pre>
<p>Look into what escape_string does. In a nutshell it takes your string and replaces the special characters with ex \x00. </p>
<p>See: <a href="http://mysql-python.sourceforge.net/MySQLdb.html" rel="nofollow">http://mysql-python.sourceforge.n... | 0 | 2016-08-24T09:09:26Z | [
"python",
"mysql",
"angularjs"
] |
My gauss filter is too slow | 39,119,008 | <p>I am making a simple gauss blur, and since I could not make scipy's convolve work, I made my own:</p>
<pre><code>def Convolve(matr_, ker_):
output = matr_.astype(np.float64)
for x in range(len(matr_)):
for y in range(len(matr_[x])):
sum = 0
count = 0
width = int(l... | 0 | 2016-08-24T09:08:42Z | 39,119,089 | <p>You should never use loops in Python if you can avoid it. Use Numpy or Pandas and work on vectors.</p>
<p>If you <em>have</em> to use loops (which doesn't seem to be the case in your example), use the Numba package.</p>
| 0 | 2016-08-24T09:12:26Z | [
"python",
"scipy"
] |
Converting string to date/hour at the 24hour mark: ValueError unconverted data remains: 4 | 39,119,093 | <p>I am trying to extract the date and hour from the following string:</p>
<pre><code>string = '3/24/2016 24' # 24 is the hour
</code></pre>
<p>Using the following code:</p>
<pre><code>result = datetime.strptime(string, '%m/%d/%Y %H')
</code></pre>
<p>However I am running into the following error message:
Value... | 0 | 2016-08-24T09:12:32Z | 39,119,268 | <p>I suppose to handle the corner case of 24, you can parse the date part as a date, then replace the "hour" mod 24, eg:</p>
<pre><code>d, t = '3/24/2016 24'.partition(' ')[::2]
dt = datetime.strptime(d, '%m/%d/%Y').replace(hour=int(t) % 24)
# datetime.datetime(2016, 3, 24, 0, 0)
</code></pre>
| 2 | 2016-08-24T09:21:11Z | [
"python",
"date",
"type-conversion",
"extract",
"strptime"
] |
psutil: get cpu of all processes | 39,119,119 | <p>Maybe I'm overlooking something, but I can't figure out how to get <code>current_process.cpu_percent(interval=0.1)</code> for all processes at once without iterating over them. Currently iteration will take <code>process_count * interval</code> seconds to finish. Is there a way around this?</p>
<p>So far I'm doing:... | 1 | 2016-08-24T09:13:39Z | 39,121,160 | <p>This is a kind of measuring CPU time of each process, so, you cannot avoid <code>process_count * interval</code> seconds in a single Python interpreter process. Maybe, you could reduce the time by means of multiprocessing.</p>
<p><a href="https://docs.python.org/3/library/multiprocessing.html" rel="nofollow">https:... | 1 | 2016-08-24T10:45:28Z | [
"python",
"python-2.7",
"psutil"
] |
psutil: get cpu of all processes | 39,119,119 | <p>Maybe I'm overlooking something, but I can't figure out how to get <code>current_process.cpu_percent(interval=0.1)</code> for all processes at once without iterating over them. Currently iteration will take <code>process_count * interval</code> seconds to finish. Is there a way around this?</p>
<p>So far I'm doing:... | 1 | 2016-08-24T09:13:39Z | 39,138,890 | <p>In order to calculate CPU% you necessarily have to wait.
You don't have to wait 0.1 secs <strong>for each process/iteration</strong> though.
Instead, iterate over all processes, call cpu_percent() with interval=0, ignore the return value then wait 0.1 secs (or more).
The second time you iterate over all processes... | 2 | 2016-08-25T07:12:41Z | [
"python",
"python-2.7",
"psutil"
] |
How to plot bar graph interactively based on value of dropdown widget in bokeh python? | 39,119,140 | <p>I want to plot the bar graph based value of dropdown widget.</p>
<p><strong>Code</strong></p>
<pre><code>import pandas as pd
from bokeh.io import output_file, show
from bokeh.layouts import widgetbox
from bokeh.models.widgets import Dropdown
from bokeh.plotting import curdoc
from bokeh.charts import Bar, output_fi... | 0 | 2016-08-24T09:14:48Z | 39,127,871 | <p>For 1.) you are referencing it before assigning it. Look at the <code>df['item']==dropdown.value</code> inside the square brackets. That happens <em>first</em> before the assignment. As to why this matters, that's how Python works. All assignments in a function by default create <em>local</em> variables. But before ... | 0 | 2016-08-24T15:52:03Z | [
"python",
"matplotlib",
"plot",
"data-visualization",
"bokeh"
] |
List Accumulation with Append | 39,119,300 | <p>I want to generate or return an append-accumulated list from a given list (or iterator). For a list like <code>[1, 2, 3, 4]</code>, I would like to get, <code>[1]</code>, <code>[1, 2]</code>, <code>[1, 2, 3]</code> and <code>[1, 2, 3, 4]</code>. Like so:</p>
<pre><code>>>> def my_accumulate(iterable):
... ... | 3 | 2016-08-24T09:22:25Z | 39,119,482 | <p>The easiest way to use <code>accumulate</code> is to make each item in the iterable a list with a single item and then the default function works as expected:</p>
<pre><code>from itertools import accumulate
acc = accumulate([el] for el in range(1, 5))
res = list(acc)
# [[1], [1, 2], [1, 2, 3], [1, 2, 3, 4]]
</code>... | 8 | 2016-08-24T09:32:02Z | [
"python",
"list"
] |
Raspberry pi Jasper speech recognition not working | 39,119,471 | <p>I follow this tutorial <a href="http://jasperproject.github.io/documentation/" rel="nofollow">http://jasperproject.github.io/documentation/</a>
I use Debian Jessie so most off them I have to compile.
When I want to run jasper.py I get this error:
Does anyone knows what the problem can be.</p>
<blockquote>
<p>DEBU... | -1 | 2016-08-24T09:31:15Z | 39,120,672 | <p>I paste my stt.py script on pastebin. <a href="http://pastebin.com/Cy6ziGPk" rel="nofollow">http://pastebin.com/Cy6ziGPk</a>
Because I could not manage this on this forum.</p>
| 0 | 2016-08-24T10:24:16Z | [
"python",
"linux"
] |
How to I list down the results of a function (python) | 39,119,500 | <p>I want to list down the sums taken from numberA. </p>
<p>The function "add" prompts the user if he wants to add. If he selects yes, then it will go to the function "numberA". This part will loop. </p>
<p>I want to list down the list of the sums when the user selects "N" in the function "add". And finally sum up a... | 0 | 2016-08-24T09:32:53Z | 39,119,569 | <pre><code>total = []
def numberA():
num1=int(input("Enter First Number"))
num2=int(input("Enter Second Number"))
total.append(num1+num2)
def add():
userSelect = input("Do You Want to Add?"
"\n(Y) Yes ; (N) No"
"\n")
while userSelect != "Y" and userSelect != "N":
pr... | 0 | 2016-08-24T09:35:46Z | [
"python"
] |
How to I list down the results of a function (python) | 39,119,500 | <p>I want to list down the sums taken from numberA. </p>
<p>The function "add" prompts the user if he wants to add. If he selects yes, then it will go to the function "numberA". This part will loop. </p>
<p>I want to list down the list of the sums when the user selects "N" in the function "add". And finally sum up a... | 0 | 2016-08-24T09:32:53Z | 39,120,536 | <p>This help</p>
<pre><code>def add():
ask = True
res = []
while ask :
num1=int(input("Enter First Number : "))
num2=int(input("Enter Second Number : "))
total = num1+num2
userSelect = input("Do You Want to Add?"
"\n(Y) Yes ; (N) No"
"\n")
if userSele... | 0 | 2016-08-24T10:18:13Z | [
"python"
] |
button on press being called before button press | 39,119,567 | <p>I am trying to add a set of buttons to a grid layout scroll view using for loop. But the on press event is being triggered for all the buttons even before pressing the buttons. How can I fix this?</p>
<pre><code>from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
from kivy.uix.scrollview ... | 0 | 2016-08-24T09:35:42Z | 39,119,701 | <p>because you are actually calling your callback when passing args:</p>
<pre><code>btn.bind(on_press =btnsclicked('b'+str(i), url))
</code></pre>
<p>Doc example says:</p>
<pre><code>def callback(instance):
print('The button <%s> is being pressed' % instance.text)
btn1 = Button(text='Hello world 1')
btn1.b... | 1 | 2016-08-24T09:40:53Z | [
"python",
"button",
"event-handling",
"kivy",
"buttonclick"
] |
button on press being called before button press | 39,119,567 | <p>I am trying to add a set of buttons to a grid layout scroll view using for loop. But the on press event is being triggered for all the buttons even before pressing the buttons. How can I fix this?</p>
<pre><code>from kivy.uix.gridlayout import GridLayout
from kivy.uix.button import Button
from kivy.uix.scrollview ... | 0 | 2016-08-24T09:35:42Z | 39,119,790 | <p>For <code>on_press</code>, you call the function instead of specifying the function to use. Try:</p>
<pre><code>btn.bind(on_press=lambda x: btnsclicked('b' + str(i), url))
</code></pre>
<p>If you want to deal with arguments, see <a href="https://kivy.org/docs/api-kivy.event.html" rel="nofollow">Event dispatcher</a... | 2 | 2016-08-24T09:45:31Z | [
"python",
"button",
"event-handling",
"kivy",
"buttonclick"
] |
django bootstrap modal form redirect on validation failed | 39,119,619 | <p>I have Bootstrap Modal which contains form. When validation form is failed redirect to the original form page. The question is how to make that server send me response with errors in my bootstrap modal?</p>
<p>urls.py</p>
<pre><code>url(r'^add/$', CreateCarView.as_view(), name='add_auto'),
</code></pre>
<p>views.... | 0 | 2016-08-24T09:37:44Z | 39,121,419 | <p>this may look like a hack but you could manually launch the modal if there are errors on the form, something like</p>
<pre><code><form id="add_item" class="form" role="form" action="{% url 'add_auto' %}" method="post">
<div class="modal-header">
<button type="button" class="close" data-dismiss="m... | 0 | 2016-08-24T10:57:44Z | [
"python",
"django",
"bootstrap-modal"
] |
django bootstrap modal form redirect on validation failed | 39,119,619 | <p>I have Bootstrap Modal which contains form. When validation form is failed redirect to the original form page. The question is how to make that server send me response with errors in my bootstrap modal?</p>
<p>urls.py</p>
<pre><code>url(r'^add/$', CreateCarView.as_view(), name='add_auto'),
</code></pre>
<p>views.... | 0 | 2016-08-24T09:37:44Z | 39,122,111 | <p>when you are submitting, normal form submitting is happening, instead you can post using ajax, this is an example ajax code.</p>
<pre><code>$(document).on('submit', '#add_item', function() {
$.ajax({
type: $(this).attr('method'),
url: this.action,
data: $(this).serialize(),
cont... | 0 | 2016-08-24T11:29:17Z | [
"python",
"django",
"bootstrap-modal"
] |
Import functions on-the-fly without loading all "sibling" modules | 39,119,681 | <p>I have the following package structure:</p>
<pre><code>pkg/
__init__.py
f1.py
f2.py
</code></pre>
<p>Each of the <code>fX.py</code> files contains a function with the same name as the file (e.g. <code>f1.py</code> contains the definition of <code>f1</code>). Inside <code>__init__.py</code>, I do the fo... | 1 | 2016-08-24T09:40:04Z | 39,120,507 | <p>Python import only what you instruct it to import. The correct syntax here would be:</p>
<pre><code>from pkg.module import object
</code></pre>
<p>Then if you remove all the code from <code>__init__.py</code>, the following happens:</p>
<pre><code>>>> from pkg.f1 import f1
I am in f1.
>>> f1
<... | 0 | 2016-08-24T10:16:57Z | [
"python",
"python-3.x"
] |
How to change the structure of output.xml from Robot Framework output | 39,119,873 | <p>We are passing three text files to pybot and the output generated is in the hierarchical format. For Example, in Test Statistics section of the report.html file, under Statistics by Suite, <strong>Test 1 & Test 2 & Test 3.Test 1</strong> is observed. It was changed to display just Test 1 by editing the repor... | 0 | 2016-08-24T09:49:03Z | 39,122,581 | <p>There is no way to modify the format of the output.xml file that was generated by robot. You have a couple of choices. </p>
<p>First, you can post-process output.xml with xslt or any other tool to transform it into whatever format you want. It's a very simple structure that is easy to parse. </p>
<p>Your second op... | 2 | 2016-08-24T11:52:40Z | [
"python",
"xml",
"robotframework"
] |
Saving a Video in OpenCV (Linux, Python) | 39,119,893 | <p>There is an example that works on Windows (<a href="https://pythonprogramming.net/loading-video-python-opencv-tutorial/" rel="nofollow">original</a>):</p>
<pre><code>import numpy as np
import cv2
cap = cv2.VideoCapture(0)
fourcc = cv2.VideoWriter_fourcc(*'XDIV')
out = cv2.VideoWriter('output.avi',fourcc, 20.0, (64... | 1 | 2016-08-24T09:49:58Z | 39,120,292 | <p>I didn't try but this should work : </p>
<pre><code>fourcc = cv2.cv.CV_FOURCC(*'XVID')
</code></pre>
| 0 | 2016-08-24T10:06:31Z | [
"python",
"linux",
"opencv"
] |
Celery tasks with the same name | 39,119,949 | <p>I am implementing a file tree walking script that calls tasks based on the file extension or directory name.</p>
<p>My walking code looks like this:</p>
<pre><code>from celery import Celery
import os
app = Celery('tasks', broker='amqp://guest@localhost//')
app.conf.update(
CELERY_DEFAULT_EXCHANGE = 'path_wal... | 0 | 2016-08-24T09:52:25Z | 39,121,211 | <p>Answering my own question:</p>
<p>It's not possible to have two tasks with the same name in a single celery app. I could split the above into two separate apps and run them with different workers, or provide unique names for the tasks.</p>
<p>The key bit of code in celery is here:</p>
<p><a href="https://github.c... | 0 | 2016-08-24T10:47:45Z | [
"python",
"celery"
] |
How can I combine two FITS tables into a single table in new fits file? | 39,120,050 | <p>I have two fits file data (file1.fits and file2.fits). The first one (file1.fits) consists of 80,700 important rows of data and another one is 140,000 rows. The both of them have the same Header. </p>
<pre><code>$ python
>>> import pyfits
>>> f1 = pyfits.open('file1.fits')
>>> f2 = pyfit... | 0 | 2016-08-24T09:57:10Z | 39,123,896 | <p>I tried with <a href="http://www.astropy.org/" rel="nofollow">astropy</a>:</p>
<pre><code>from astropy.table import Table, hstack
t1 = Table.read('file1.fits', format='fits')
t2 = Table.read('file2.fits', format='fits')
new = hstack([t1, t2])
new.write('combined.fits')
</code></pre>
<p>It seems to work with sampl... | 1 | 2016-08-24T12:53:03Z | [
"python",
"fits",
"pyfits"
] |
Except for non gmail addresses, how do i make gmail addresses to be strictly ending with '@gmail.com' (and not something as '@gmail.com.au', etc) | 39,120,263 | <p>How to validate an email address in a form to be only as 'gmail.com' but raise an error if the domain name and extension is anything other than 'gmail.com'?
I get an error if the email address ends with @gmail.au.com for example</p>
<pre><code>from django import forms
from .models import User
class RegisterForm(f... | -2 | 2016-08-24T10:05:20Z | 39,120,504 | <p>You can just check whether or not the email includes <code>@gmail</code> and ends with <code>@gmail.com</code>, theres no need to split it at all</p>
<pre><code>if '@gmail' in email and not email.endswith('@gmail.com'):
</code></pre>
| 4 | 2016-08-24T10:16:54Z | [
"python",
"django"
] |
Except for non gmail addresses, how do i make gmail addresses to be strictly ending with '@gmail.com' (and not something as '@gmail.com.au', etc) | 39,120,263 | <p>How to validate an email address in a form to be only as 'gmail.com' but raise an error if the domain name and extension is anything other than 'gmail.com'?
I get an error if the email address ends with @gmail.au.com for example</p>
<pre><code>from django import forms
from .models import User
class RegisterForm(f... | -2 | 2016-08-24T10:05:20Z | 39,121,174 | <p>There are multiple ways to achieve it. Below are the changes in your code which will make it run. Code further, explore, and let us know for issues :)</p>
<pre><code>>>> provider = 'gmail.com.au'
>>> provider_list = provider.split('.')
>>> domain, extension = provider_list[0], ''.join(pro... | 0 | 2016-08-24T10:46:11Z | [
"python",
"django"
] |
Organise large dataset into separate lines | 39,120,276 | <p>I have a large raw data set which I want to organise into separate lines. The data is delimited. I want to organise so there are 8 delimiters in one line followed by a location, then the new line. </p>
<p>Raw Data:</p>
<p>468|2016-06-17||Mobile|responsive|sport|sport.football.england||London 468|2016-06-16||Mobile... | 0 | 2016-08-24T10:05:48Z | 39,122,413 | <p>You may try this :</p>
<pre><code>data = '''468|2016-06-17||Mobile|responsive|sport|sport.football.england||london 468|2016-06-16||Mobile|responsive|sport|sport.football.european||west midlands 468|2016-06-17||Mobile|responsive|sport|sport.football.england||india'''
new = []
for i in data.split(' '):
if '|' in... | 0 | 2016-08-24T11:44:00Z | [
"python",
"token"
] |
Removing non-alphanumeric characters with bash or python | 39,120,328 | <p>I have much files like these(please see the screenshot): </p>
<pre><code>30.230201521829.jpg
Mens-Sunglasses_L.180022111040.jpg
progressive-sunglasses.180041285287.jpg
Atmosphere.222314222509.jpg
Womens-Sunglasses-L.180023271958.jpg
DAILY ESSENTIALS.211919012115.jpg
aviator-l.Sunglasses.24020221675... | 0 | 2016-08-24T10:08:12Z | 39,120,374 | <pre><code>#!/bin/bash/
echo "test: "
echo "" > 30.230201521829.jpg
echo "" > Mens-Sunglasses_L.180022111040.jpg
echo "" > progressive-sunglasses.180041285287.jpg
echo "" > Atmosphere.222314222509.jpg
echo "" > Womens-Sunglasses-L.180023271958.jpg
echo "" > DAILY\ ESSENTIALS.2119190121... | -2 | 2016-08-24T10:10:19Z | [
"python",
"bash",
"sed"
] |
Removing non-alphanumeric characters with bash or python | 39,120,328 | <p>I have much files like these(please see the screenshot): </p>
<pre><code>30.230201521829.jpg
Mens-Sunglasses_L.180022111040.jpg
progressive-sunglasses.180041285287.jpg
Atmosphere.222314222509.jpg
Womens-Sunglasses-L.180023271958.jpg
DAILY ESSENTIALS.211919012115.jpg
aviator-l.Sunglasses.24020221675... | 0 | 2016-08-24T10:08:12Z | 39,120,513 | <p>Using command substitution for renaming the file. Following code will loop to the current directory's (unless path is modified) jpg files. </p>
<p>Awk is used to filter out the penultimate and last column of file name which are separated by "." . </p>
<pre><code>for file in *.jpg
do
mv "$file" $(echo "$file... | 1 | 2016-08-24T10:17:19Z | [
"python",
"bash",
"sed"
] |
Removing non-alphanumeric characters with bash or python | 39,120,328 | <p>I have much files like these(please see the screenshot): </p>
<pre><code>30.230201521829.jpg
Mens-Sunglasses_L.180022111040.jpg
progressive-sunglasses.180041285287.jpg
Atmosphere.222314222509.jpg
Womens-Sunglasses-L.180023271958.jpg
DAILY ESSENTIALS.211919012115.jpg
aviator-l.Sunglasses.24020221675... | 0 | 2016-08-24T10:08:12Z | 39,121,119 | <p>Using <a href="http://www.unix.com/man-page/linux/1/prename/" rel="nofollow">perl rename</a> one-liner:</p>
<pre><code>$ touch 30.230201521829.jpg Mens-Sunglasses_L.180022111040.jpg progressive-sunglasses.180041285287.jpg Atmosphere.222314222509.jpg Womens-Sunglasses-L.180023271958.jpg Womens-Eyeglasses-R.172254027... | 0 | 2016-08-24T10:43:40Z | [
"python",
"bash",
"sed"
] |
Removing non-alphanumeric characters with bash or python | 39,120,328 | <p>I have much files like these(please see the screenshot): </p>
<pre><code>30.230201521829.jpg
Mens-Sunglasses_L.180022111040.jpg
progressive-sunglasses.180041285287.jpg
Atmosphere.222314222509.jpg
Womens-Sunglasses-L.180023271958.jpg
DAILY ESSENTIALS.211919012115.jpg
aviator-l.Sunglasses.24020221675... | 0 | 2016-08-24T10:08:12Z | 39,124,055 | <p>You can use parameter expansion to strip off the extension, then
remove all but the last <code>.</code>-delimited field from the remaining name. After than, you can reapply the extension.</p>
<pre><code>for f in *; do
ext=${f##*.}
base=${f%.$ext}
mv -- "$f" "${base##*.}.$ext"
done
</code></pre>
<p>The ... | 0 | 2016-08-24T13:00:30Z | [
"python",
"bash",
"sed"
] |
Removing non-alphanumeric characters with bash or python | 39,120,328 | <p>I have much files like these(please see the screenshot): </p>
<pre><code>30.230201521829.jpg
Mens-Sunglasses_L.180022111040.jpg
progressive-sunglasses.180041285287.jpg
Atmosphere.222314222509.jpg
Womens-Sunglasses-L.180023271958.jpg
DAILY ESSENTIALS.211919012115.jpg
aviator-l.Sunglasses.24020221675... | 0 | 2016-08-24T10:08:12Z | 39,136,580 | <p>I use python </p>
<p>examp.</p>
<pre><code>import os
import sys
import glob
pth = "C:\Users\Test"
dir_show = os.listdir(pth)
for list_file in dir_show:
if list_file.endswith(".JPG"):
(shrname, exts) = os.path.splitext(list_file)
path = os.path.join(pth, list_file)
newname=os.path.join... | 1 | 2016-08-25T04:09:50Z | [
"python",
"bash",
"sed"
] |
Python regex match until certain word after identaion | 39,120,346 | <p>Given the following string or similar:</p>
<pre><code>baz: bar
key: >
lorem ipsum 1213 __ ^123
lorem ipsum
foo:bar
anotherkey: >
lorem ipsum 1213 __ ^123
lorem ipsum
</code></pre>
<p>I am trying to build a REGEX which captures all values after a key followed by a <code>></code> sign. </... | 0 | 2016-08-24T10:08:59Z | 39,120,436 | <p>You can tweak your regex to this:</p>
<pre><code>(\w+:\s+>\n\s+[\S\s]+?)(?=\n\w+:\w+\n|\Z)
</code></pre>
<p><a href="https://regex101.com/r/fU7wC3/1" rel="nofollow">RegEx Demo</a></p>
<p>Lookahead <code>(?=\n\w+:\w+\n|\Z)</code> will assert presence of <code>key:value</code> or end of input (<code>\Z</code>) a... | 1 | 2016-08-24T10:13:26Z | [
"python",
"regex"
] |
Python regex match until certain word after identaion | 39,120,346 | <p>Given the following string or similar:</p>
<pre><code>baz: bar
key: >
lorem ipsum 1213 __ ^123
lorem ipsum
foo:bar
anotherkey: >
lorem ipsum 1213 __ ^123
lorem ipsum
</code></pre>
<p>I am trying to build a REGEX which captures all values after a key followed by a <code>></code> sign. </... | 0 | 2016-08-24T10:08:59Z | 39,121,755 | <h2>One</h2>
<p>If you are <strong>not sure about indentations</strong> whether or not they exist, then this is the <em>simplest</em> way you can achieve desired result:</p>
<pre><code>^\w+:\s+>(?:\s?[^:]*$)*
</code></pre>
<p><a href="https://regex101.com/r/rM1qZ5/1" rel="nofollow">Live demo</a></p>
<p>Explanati... | 0 | 2016-08-24T11:12:14Z | [
"python",
"regex"
] |
Python regex match until certain word after identaion | 39,120,346 | <p>Given the following string or similar:</p>
<pre><code>baz: bar
key: >
lorem ipsum 1213 __ ^123
lorem ipsum
foo:bar
anotherkey: >
lorem ipsum 1213 __ ^123
lorem ipsum
</code></pre>
<p>I am trying to build a REGEX which captures all values after a key followed by a <code>></code> sign. </... | 0 | 2016-08-24T10:08:59Z | 39,122,367 | <p>(As per request ;)</p>
<p>You could use something like</p>
<pre><code>^\w+:\s*>\n(?:[ \t].*\n?)+
</code></pre>
<p>(This is without the groups. If you decide you wan't them, see the comments to the question.)</p>
<p>It matches the start of a line (<code>^</code>) followed by at least one word character (<code>... | 2 | 2016-08-24T11:41:54Z | [
"python",
"regex"
] |
Python Argparse: Raw string input | 39,120,363 | <p>Apologies if this has been asked before, I did search for it but all hits seemed to be about python raw strings in general rather than regarding argparse.</p>
<p>Anyways, I have a code where the user feeds in a string and then this string is processed. However, I have a problem as I want my code to be able to diffe... | 0 | 2016-08-24T10:09:34Z | 39,120,610 | <p>Here's a possible solution to your problem:</p>
<pre><code>import argparse
parser = argparse.ArgumentParser(description='Test.')
parser.add_argument('text', action='store', type=str, help='The text to parse.')
args = parser.parse_args()
print '-' * 80
raw_text = eval('"' + args.text.replace('"', '\\"') + '"')
pr... | 1 | 2016-08-24T10:21:21Z | [
"python",
"string",
"argparse",
"rawstring"
] |
Python Argparse: Raw string input | 39,120,363 | <p>Apologies if this has been asked before, I did search for it but all hits seemed to be about python raw strings in general rather than regarding argparse.</p>
<p>Anyways, I have a code where the user feeds in a string and then this string is processed. However, I have a problem as I want my code to be able to diffe... | 0 | 2016-08-24T10:09:34Z | 39,128,697 | <p>As noted in the comments, <code>argparse</code> works with <code>sys.argv</code>, a list which is produced by the shell and Python interpreter. </p>
<p>With a simple <code>argv</code> echo script:</p>
<pre><code>0928:~/mypy$ cat echo_argv.py
import sys
print(sys.argv)
</code></pre>
<p>I get (with a bash shell):<... | 0 | 2016-08-24T16:34:13Z | [
"python",
"string",
"argparse",
"rawstring"
] |
Convert current time to WebKit/Chrome 17-digit timestamp | 39,120,437 | <p>I'm writing some bash script that parses and modifies multiple preferences and bookmarks of Google Chrome in OS X. Some of the values require 17-digit WebKit timestamp to be provided. For now I've hardcoded it with <code>13116319200000000</code> which corresponds to beginning of my workday this Monday in CEST, but i... | 0 | 2016-08-24T10:13:29Z | 39,121,470 | <p>Something like this?</p>
<pre><code>from datetime import datetime, timedelta
def date_from_webkit(webkit_timestamp):
epoch_start = datetime(1601, 1, 1)
delta = timedelta(microseconds=int(webkit_timestamp))
return epoch_start + delta
def date_to_webkit(date_string):
epoch_start = datetime(1601, 1... | 0 | 2016-08-24T11:00:10Z | [
"javascript",
"python",
"bash",
"google-chrome",
"webkit"
] |
Convert current time to WebKit/Chrome 17-digit timestamp | 39,120,437 | <p>I'm writing some bash script that parses and modifies multiple preferences and bookmarks of Google Chrome in OS X. Some of the values require 17-digit WebKit timestamp to be provided. For now I've hardcoded it with <code>13116319200000000</code> which corresponds to beginning of my workday this Monday in CEST, but i... | 0 | 2016-08-24T10:13:29Z | 39,131,589 | <p>So after great solution provided by <a href="http://stackoverflow.com/a/39121470/6751451">Tiger-222</a> I've found out about python's <code>datetime</code> microseconds (<code>%f</code>) and added it to my final bash script to get full available time resolution and, as a result, the precise WebKit timestamp. Might b... | 0 | 2016-08-24T19:28:48Z | [
"javascript",
"python",
"bash",
"google-chrome",
"webkit"
] |
Put variable inside string + hardcoded %d value | 39,120,538 | <p>I'm trying to put into string variables and hardcoded '%d' value - which is not variable (unfornatelly python take it as intiger variable). Example:</p>
<pre><code>Error="""awk -v col="%s" -F"," '{ if(NF != col) printf("Index: %d, NR, NF-1); }' "%s" > %s"""%(variable1,variable2,variable3)
</code></pre>
<p>Now I... | 0 | 2016-08-24T10:18:16Z | 39,120,627 | <p>Try this:</p>
<pre><code>Error="""awk -v col="%s" -F"," '{ if(NF != col) printf("Index: %%d, NR, NF-1); }' "%s" > %s"""%(variable1,variable2,variable3)
</code></pre>
<p>This uses <code>%%</code>, which resolves to <code>%</code>. Another solution:</p>
<pre><code>Error="""awk -v col="{}" -F"," '{ if(NF != col) ... | 2 | 2016-08-24T10:22:05Z | [
"python"
] |
catching CTRL-C and manipulating clipboard data with wxpython | 39,120,616 | <p>My wxpython application must respond everytime user hits CTRL-C, no matter if applications frame is on top/visible but unfocussed/minimalized/under other window etc. Basically I want to know that user copied something into clipboard using CTRL-C combination - other changes in clipboard (like mouse r-click + "copy" s... | 1 | 2016-08-24T10:21:35Z | 39,125,066 | <p>Took me a while to figure it out but did it!</p>
<p>Just change key down event to key up and it works. Your callback is called when CTRL+C is released, so clipboard is already correct since CTRL+C has been processed.</p>
<p>(also fixed the callback returned <code>True</code> else I get a lot of exception messages)... | 1 | 2016-08-24T13:45:06Z | [
"python",
"wxpython",
"clipboard"
] |
Finding list of index corresponding to list of element of a dataframe in Python | 39,120,667 | <p>I have a dataframe with millions of lines. I need to get the corresponding indexes of hundreds of thousands of elements that are present in the original dataframe.</p>
<p>I currently use this code:</p>
<pre><code>df[df['processed_col'] == element.index[0]
</code></pre>
<p>to find the position of <code>'element'</... | 1 | 2016-08-24T10:24:05Z | 39,120,806 | <p>IIUC you need <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.isin.html" rel="nofollow"><code>isin</code></a> if find first value of index:</p>
<pre><code>df[df['processed_col'].isin([element1, element2,..., elementN])].index[0]
</code></pre>
<p>or if want all values of index, remove <... | 0 | 2016-08-24T10:30:06Z | [
"python",
"list",
"pandas",
"indexing",
"dataframe"
] |
Sublime Text 3 API reload file after opening | 39,120,699 | <p>I've written a simple Sublime Text 3 plugin which let me open a log file with a keybord shortcut : </p>
<pre><code>class OpenFilesCommand(sublime_plugin.TextCommand):
def run(self, edit, var_str):
str_date = datetime.datetime.strftime(datetime.datetime.now(),'%Y-%m-%d')
path_file = '/home/user/l... | 1 | 2016-08-24T10:25:16Z | 39,130,907 | <p>If the file is already open, and you want Sublime Text to refresh the view from the file, you can use the <code>revert</code> command to reload it from the disk.</p>
<pre><code>self.view.window().run_command('revert')
</code></pre>
| 1 | 2016-08-24T18:47:30Z | [
"python",
"sublimetext3"
] |
Replacing all numeric value to formatted string | 39,120,783 | <p>What I am trying to do is:</p>
<p>Find out all the numeric values in a string.</p>
<pre><code>input_string = "é«é²æ½å
æç½è¼æ
èè·çè100 79.80"
numbers = re.finditer(r'[-+]?[0-9]*\.?[0-9]+(?:[eE][-+]?[0-9]+)?',input_string)
for number in numbers:
print ("{} start > {}, end > {}".forma... | 4 | 2016-08-24T10:28:56Z | 39,121,003 | <p>Use <code>re.sub</code> and a callback method inside where you can perform various manipulations on the match:</p>
<pre><code>import re
def repl(match):
chunks = match.group(1).split(".")
if len(chunks) == 2:
return "FLT_{}".format(len(chunks[1]))
else:
return "INT_{}".format(len(chunks[... | 4 | 2016-08-24T10:39:14Z | [
"python",
"regex",
"string",
"replace"
] |
Replacing all numeric value to formatted string | 39,120,783 | <p>What I am trying to do is:</p>
<p>Find out all the numeric values in a string.</p>
<pre><code>input_string = "é«é²æ½å
æç½è¼æ
èè·çè100 79.80"
numbers = re.finditer(r'[-+]?[0-9]*\.?[0-9]+(?:[eE][-+]?[0-9]+)?',input_string)
for number in numbers:
print ("{} start > {}, end > {}".forma... | 4 | 2016-08-24T10:28:56Z | 39,121,239 | <p>You need to group the parts of your regex possibly like this</p>
<pre><code>import re
def repl(m):
if m.group(1) is None: #int
return ("INT_%i"%len(m.group(2)))
else: #float
return ("FLT_%i"%(len(m.group(2))))
input_string = "é«é²æ½å
æç½è¼æ
èè·çè100 79.80"
number... | 2 | 2016-08-24T10:49:12Z | [
"python",
"regex",
"string",
"replace"
] |
Replacing all numeric value to formatted string | 39,120,783 | <p>What I am trying to do is:</p>
<p>Find out all the numeric values in a string.</p>
<pre><code>input_string = "é«é²æ½å
æç½è¼æ
èè·çè100 79.80"
numbers = re.finditer(r'[-+]?[0-9]*\.?[0-9]+(?:[eE][-+]?[0-9]+)?',input_string)
for number in numbers:
print ("{} start > {}, end > {}".forma... | 4 | 2016-08-24T10:28:56Z | 39,121,356 | <p>You probably are looking for something like the code below (of course there are other ways to do it). This one just starts with what you were doing and show how it can be done.</p>
<pre><code>import re
input_string = u"é«é²æ½å
æç½è¼æ
èè·çè100 79.80"
numbers = re.finditer(r'[-+]?[0-9]*\.?[0-9]+(?:... | 1 | 2016-08-24T10:54:59Z | [
"python",
"regex",
"string",
"replace"
] |
converting an HTML table in Pandas Dataframe | 39,120,853 | <p>I am reading an HTML table with pd.read_html but the result is coming in a list, I want to convert it inot a pandas dataframe, so I can continue further operations on the same. I am using the following script</p>
<pre><code>import pandas as pd
import html5lib
data=pd.read_html('http://www.espn.com/nhl/statistics/pl... | 0 | 2016-08-24T10:32:35Z | 39,120,889 | <p>I think you need add <code>[0]</code> if need select first item of list, because <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.read_html.html" rel="nofollow"><code>read_html</code></a> return <code>list of DataFrames</code>:</p>
<p>So you can use:</p>
<pre><code>import pandas as pd
data1 =... | 3 | 2016-08-24T10:34:27Z | [
"python",
"html",
"pandas",
"dataframe"
] |
Comparison operator in PySpark (not equal/ !=) | 39,120,934 | <p>I am trying to obtain all rows in a dataframe where two flags are set to '1' and subsequently all those that where only one of two is set to '1' and the other <strong>NOT EQUAL</strong> to '1'</p>
<p>With the following schema (three columns),</p>
<pre><code>df = sqlContext.createDataFrame([('a',1,'null'),('b',1,1)... | 1 | 2016-08-24T10:36:05Z | 39,121,002 | <p>To filter null values try:</p>
<p><code>foo_df = df.filter( (df.foo==1) & (df.bar.isNull()) )</code></p>
<p><a href="https://spark.apache.org/docs/1.6.2/api/python/pyspark.sql.html#pyspark.sql.Column.isNull" rel="nofollow">https://spark.apache.org/docs/1.6.2/api/python/pyspark.sql.html#pyspark.sql.Column.isNul... | 2 | 2016-08-24T10:39:13Z | [
"python",
"apache-spark",
"pyspark",
"pyspark-sql"
] |
Comparison operator in PySpark (not equal/ !=) | 39,120,934 | <p>I am trying to obtain all rows in a dataframe where two flags are set to '1' and subsequently all those that where only one of two is set to '1' and the other <strong>NOT EQUAL</strong> to '1'</p>
<p>With the following schema (three columns),</p>
<pre><code>df = sqlContext.createDataFrame([('a',1,'null'),('b',1,1)... | 1 | 2016-08-24T10:36:05Z | 39,121,638 | <blockquote>
<p>Why is it not filtering</p>
</blockquote>
<p>Because it is SQL and <code>NULL</code> indicates missing values. Because of that any comparison to <code>NULL</code>, other than <code>IS NULL</code> and <code>IS NOT NULL</code> is undefined. You need either:</p>
<pre><code>col("bar").isNull() | (col("b... | 1 | 2016-08-24T11:07:31Z | [
"python",
"apache-spark",
"pyspark",
"pyspark-sql"
] |
Error in changing to directory using os.chdir in for loop - python | 39,121,006 | <p>Hey i've got this script which converts all the flv video files in a directory to mp4 format. </p>
<p>I got it to work with just having all the files placed in one directory but am now needing to modify it so it goes into folders within that directory and converts the files within each folder it comes across.</p>
... | 0 | 2016-08-24T10:39:20Z | 39,121,099 | <p>The <code>dirpath</code> is a <em>single</em> string. When you iterate over it using <code>for</code> loop (<code>for z in dirpath</code>), you're iterating over each individual character in string <code>'/home/dubit/Desktop/test/'</code>! First <code>z</code> is set to <code>'/'</code>, then <code>'h'</code>... and... | 4 | 2016-08-24T10:42:53Z | [
"python",
"python-2.7"
] |
Error in changing to directory using os.chdir in for loop - python | 39,121,006 | <p>Hey i've got this script which converts all the flv video files in a directory to mp4 format. </p>
<p>I got it to work with just having all the files placed in one directory but am now needing to modify it so it goes into folders within that directory and converts the files within each folder it comes across.</p>
... | 0 | 2016-08-24T10:39:20Z | 39,121,217 | <p>The error you're getting is due to the fact that <code>dirpath</code> is actually a string, not a list of strings. <code>os.walk()</code> returns a tuple, where <code>dirpath</code> being current directory being walked by, <code>dirnames</code> and <code>filenames</code> being <code>dirpath</code>'s contents.</p>
<... | 1 | 2016-08-24T10:47:59Z | [
"python",
"python-2.7"
] |
How to make simple graphs in python 2.7 | 39,121,235 | <p>I would like to make simple graphs for my web page in python/django, but I do not know, which library (and how) to use.</p>
<p>I DO NOT WANT CHARTS, I SEEK A WAY TO CREATE IMAGE FROM PRIMITIVES LIKE RECTANGLES.</p>
<p>Each such graph is probabely generated and used only one time, as next time the values would diff... | 2 | 2016-08-24T10:48:57Z | 39,121,646 | <p>You should check Pillow out. Here is a sample how it works:</p>
<pre><code>from PIL import Image, ImageDraw
im = Image.open("lena.pgm")
draw = ImageDraw.Draw(im)
draw.line((0, 0) + im.size, fill=128)
draw.line((0, im.size[1], im.size[0], 0), fill=128)
del draw
# write to stdout
im.save(sys.stdout, "PNG")
</code>... | 2 | 2016-08-24T11:08:03Z | [
"python",
"django",
"python-2.7"
] |
How to make simple graphs in python 2.7 | 39,121,235 | <p>I would like to make simple graphs for my web page in python/django, but I do not know, which library (and how) to use.</p>
<p>I DO NOT WANT CHARTS, I SEEK A WAY TO CREATE IMAGE FROM PRIMITIVES LIKE RECTANGLES.</p>
<p>Each such graph is probabely generated and used only one time, as next time the values would diff... | 2 | 2016-08-24T10:48:57Z | 39,121,890 | <p><a href="http://matplotlib.org/" rel="nofollow">http://matplotlib.org/</a> permits to generate plenty of great graphs. You should be able to save it as an image and integrate it to your webpage</p>
| 0 | 2016-08-24T11:18:58Z | [
"python",
"django",
"python-2.7"
] |
How to make simple graphs in python 2.7 | 39,121,235 | <p>I would like to make simple graphs for my web page in python/django, but I do not know, which library (and how) to use.</p>
<p>I DO NOT WANT CHARTS, I SEEK A WAY TO CREATE IMAGE FROM PRIMITIVES LIKE RECTANGLES.</p>
<p>Each such graph is probabely generated and used only one time, as next time the values would diff... | 2 | 2016-08-24T10:48:57Z | 39,121,971 | <p>What about <a href="https://plot.ly/python/gantt/" rel="nofollow">plotly</a>? Never used in a project, but by reading the examples it seems very powerful and easy to use. It has a <a href="https://plot.ly/python/static-image-export/" rel="nofollow">static image export</a> (as most graphic libraries probably have).<... | 0 | 2016-08-24T11:22:20Z | [
"python",
"django",
"python-2.7"
] |
How to create a specific type of object for type .hdf5? | 39,121,367 | <p>My question is about creating an object type or document for .hdf5 files. The object will have three attributes, an id, a user_id and a boolean array of size 64. I have to create them about 10000000 (Ten millions) many. </p>
<p>Imagine mongodb, I have to use them like that. I have to make queries for some particula... | 0 | 2016-08-24T10:55:18Z | 39,121,705 | <p>I would go ahead and use a dictionary for this case. I feel dictionaries do scale up well. Since the query would be on user_id, I would make it the key.</p>
<p>The structure would be like </p>
<pre><code>{
'user_id-xyz': {
'id':'id-1212',
'boolarray':[True,False,..],
},
'user_id-abc':... | 0 | 2016-08-24T11:10:10Z | [
"python",
"mongodb",
"hdf5",
"h5py"
] |
How do I ignore the "redundant parentheses" feature in PyCharm? | 39,121,432 | <p>PyCharm decides that certain parenthesis in my Python code are 'redundant'. I want to keep them anyway. So PyCharm started annoying me with green lines under them. I don't want to give in to PyCharm's quirks.</p>
<p>I was able to ignore other warnings in the following way:</p>
<blockquote>
<p>File > Settings > E... | -1 | 2016-08-24T10:58:23Z | 39,121,575 | <p>There is <code>redundant parenthesis</code> under Inspections (PyCharm 2016.1.4). Look closer.</p>
<p>If you still can't find it, there is a search bar on the top left corner of the settings menu. Search for <code>redun</code> and the <code>redundant parenthesis</code> inspection should come up.</p>
| 4 | 2016-08-24T11:04:51Z | [
"python",
"pycharm"
] |
How do I ignore the "redundant parentheses" feature in PyCharm? | 39,121,432 | <p>PyCharm decides that certain parenthesis in my Python code are 'redundant'. I want to keep them anyway. So PyCharm started annoying me with green lines under them. I don't want to give in to PyCharm's quirks.</p>
<p>I was able to ignore other warnings in the following way:</p>
<blockquote>
<p>File > Settings > E... | -1 | 2016-08-24T10:58:23Z | 39,121,691 | <p>redundant parenthesis is a <em>weak warning</em>. You can just uncheck the box there.</p>
<p><a href="http://i.stack.imgur.com/QTCwM.png" rel="nofollow"><img src="http://i.stack.imgur.com/QTCwM.png" alt="enter image description here"></a></p>
| 3 | 2016-08-24T11:09:47Z | [
"python",
"pycharm"
] |
Saving functions using shelve | 39,121,587 | <p>I'm trying to use the shelve python module to save my session output and reload it later, but I have found that if I have defined functions then I get an error in the reloading stage. Is there a problem with the way I am doing it? I based my code on an answer at <a href="http://stackoverflow.com/questions/2960864/ho... | 0 | 2016-08-24T11:05:22Z | 39,121,645 | <p>You can't use <code>shelve</code> (or <a href="https://docs.python.org/2/library/pickle.html#module-pickle" rel="nofollow"><code>pickle</code></a>, the actual protocol used by <code>shelve</code>) to store <em>executable code</em>, no.</p>
<p>What is stored is a <em>reference</em> to the function (just the location... | 3 | 2016-08-24T11:07:59Z | [
"python",
"python-2.7"
] |
Updating messages with inline keyboards using callback queries | 39,121,678 | <p>I want to update message in chat with inline keyboard but can't understand how to receive a <em>inline_message_id</em> or if it only for inline queries how I can determine <em>chat_id</em> and <em>message_id</em> for using it on <a href="https://pythonhosted.org/python-telegram-bot/telegram.bot.html" rel="nofollow">... | 0 | 2016-08-24T11:09:16Z | 39,127,669 | <p>You should pass <code>message_id</code> instead of <code>inline_message_id</code> to <code>editMessageText</code>.</p>
<p>So the solution for you is this:</p>
<pre class="lang-python prettyprint-override"><code>bot.editMessageText(
message_id = update.callback_query.message.message_id,
chat_id = update.cal... | 1 | 2016-08-24T15:41:16Z | [
"python",
"telegram",
"telegram-bot",
"python-telegram-bot"
] |
Setting with enlargement - updating transaction DF | 39,121,709 | <p>Looking for ways to achieve following updates on a dataframe:</p>
<ul>
<li><code>dfb</code> is the base dataframe that I want to update with <code>dft</code> transactions.</li>
<li>Any common index rows should be updated with values from <code>dft</code>. </li>
<li>Indexes only in <code>dft</code> should be appende... | 1 | 2016-08-24T11:10:27Z | 39,121,833 | <p>You can use <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.combine_first.html" rel="nofollow"><code>combine_first</code></a> with renaming columns, last convert <code>float</code> columns to <code>int</code> by <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Dat... | 1 | 2016-08-24T11:16:10Z | [
"python",
"pandas",
"dataframe",
"multiple-columns",
"insert-update"
] |
decoding base64 images from rtf | 39,121,875 | <p>In my rtf document, I want to extract image from string:
The string is like this:</p>
<pre><code> \pard\pard\qc{\*\shppict{\pict\pngblip\picw320\pich192\picwgoal0\pichgoal0
89504e470d0a1a0a0000000d4948445200000140000000c00802000000fa352d9100000e2949444[.....]6c4f0000000049454e44ae426082
}}
</code></pre>
<p... | 0 | 2016-08-24T11:18:07Z | 39,121,955 | <p>No, that's not Base64-encoded data. It is <em>hexadecimal</em>. From the <a href="https://en.wikipedia.org/wiki/Rich_Text_Format#Pictures" rel="nofollow">Wikipedia article on the RTF format</a>:</p>
<blockquote>
<p>RTF supports inclusion of JPEG, Portable Network Graphics (PNG), Enhanced Metafile (EMF), Windows M... | 4 | 2016-08-24T11:21:21Z | [
"python",
"base64",
"rtf"
] |
Why is Python regex slower 5 times on aws instance than my local mac OS X with similar specs? | 39,122,067 | <p>I have the following regex code. </p>
<pre><code>#!/usr/bin/env python
# -*- coding: utf-8 -*-
import time
import re
start_time = time.time()
input_string = """áá®ááá¯á áºáá¾ áá¬ááºáá¼á®á¸áá¾ááºááẠá¡á¬áá¯áááºáááá±á¸áá½á¾ááºá¸á
á¬ááᯠááá½... | 2 | 2016-08-24T11:27:21Z | 39,122,978 | <p>The problem is that I was using python 2.7.3 on my aws instance. After I updated to 2.7.10, it is now as fast as my other machines.</p>
<p>Cheers.</p>
| 3 | 2016-08-24T12:11:30Z | [
"python",
"regex",
"amazon-web-services"
] |
How to remove spacing from an input | 39,122,117 | <p>Hi I am new to programming and I am trying to write a code that will add a hashtag from the users input and remove spacing.</p>
<p>For example if the input is </p>
<pre><code>Enter text:
</code></pre>
<p>and I was to write "Sam is cool". I would want it to print "#Samiscool"</p>
<p>This is my program so far:</p>... | -4 | 2016-08-24T11:29:29Z | 39,122,168 | <p>You can use <code>string.replace</code> to remove the whitespace, then simply use concatenation to put the <code>'#'</code> symbol in front</p>
<pre><code>def hashify(s):
return '#' + s.replace(' ', '')
>>> hashify('Sam is cool')
'#Samiscool'
</code></pre>
| 3 | 2016-08-24T11:31:54Z | [
"python"
] |
How to remove spacing from an input | 39,122,117 | <p>Hi I am new to programming and I am trying to write a code that will add a hashtag from the users input and remove spacing.</p>
<p>For example if the input is </p>
<pre><code>Enter text:
</code></pre>
<p>and I was to write "Sam is cool". I would want it to print "#Samiscool"</p>
<p>This is my program so far:</p>... | -4 | 2016-08-24T11:29:29Z | 39,122,193 | <p>Here's a possible solution, it'll get rid not only of spaces but also tabs:</p>
<pre><code>a = input("Enter text: ")
print('#' + "".join(a.split()))
</code></pre>
| 4 | 2016-08-24T11:33:10Z | [
"python"
] |
How to remove spacing from an input | 39,122,117 | <p>Hi I am new to programming and I am trying to write a code that will add a hashtag from the users input and remove spacing.</p>
<p>For example if the input is </p>
<pre><code>Enter text:
</code></pre>
<p>and I was to write "Sam is cool". I would want it to print "#Samiscool"</p>
<p>This is my program so far:</p>... | -4 | 2016-08-24T11:29:29Z | 39,122,370 | <p>I propose one more option</p>
<pre><code>def hashify(s):
return '#' + s.title().replace(' ', '')
>>> hashify('Sam is cool')
'#SamIsCool'
</code></pre>
| 1 | 2016-08-24T11:41:55Z | [
"python"
] |
How to remove spacing from an input | 39,122,117 | <p>Hi I am new to programming and I am trying to write a code that will add a hashtag from the users input and remove spacing.</p>
<p>For example if the input is </p>
<pre><code>Enter text:
</code></pre>
<p>and I was to write "Sam is cool". I would want it to print "#Samiscool"</p>
<p>This is my program so far:</p>... | -4 | 2016-08-24T11:29:29Z | 39,122,649 | <p>And if you really want to know why Python is cool (#PythonIsCool):</p>
<pre><code>>>> s = 'Python is cool'
>>> print( '#' + ''.join( x[0:1].upper() + x[1:len(x)] for x in s.split() ))
PythonIsCool
</code></pre>
| 0 | 2016-08-24T11:55:19Z | [
"python"
] |
Interpolating backwards with multiple consecutive nan's in Pandas/Python? | 39,122,196 | <p>I have an array with missing values in various places.</p>
<pre><code>import numpy as np
import pandas as pd
x = np.arange(1,10).astype(float)
x[[0,1,6]] = np.nan
df = pd.Series(x)
print(df)
0 NaN
1 NaN
2 3.0
3 4.0
4 5.0
5 6.0
6 NaN
7 8.0
8 9.0
dtype: float64
</code></pre>
<p>For each <... | 3 | 2016-08-24T11:33:21Z | 39,122,277 | <p>You can do something like this:</p>
<pre><code>import numpy as np
import pandas as pd
x = np.arange(1,10).astype(float)
x[[0,1,6]] = np.nan
df = pd.Series(x)
prev = 0
new_list = []
for i in df.values[::-1]:
if np.isnan(i):
new_list.append(prev/2.)
prev = prev / 2.
else:
new_list... | 2 | 2016-08-24T11:37:50Z | [
"python",
"pandas",
"numpy",
"dataframe",
"interpolation"
] |
Interpolating backwards with multiple consecutive nan's in Pandas/Python? | 39,122,196 | <p>I have an array with missing values in various places.</p>
<pre><code>import numpy as np
import pandas as pd
x = np.arange(1,10).astype(float)
x[[0,1,6]] = np.nan
df = pd.Series(x)
print(df)
0 NaN
1 NaN
2 3.0
3 4.0
4 5.0
5 6.0
6 NaN
7 8.0
8 9.0
dtype: float64
</code></pre>
<p>For each <... | 3 | 2016-08-24T11:33:21Z | 39,122,684 | <p>Another solution with <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.fillna.html" rel="nofollow"><code>fillna</code></a> with method <code>ffill</code>, what it same as <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.ffill.html" rel="nofollow"><code>ffill()<... | 3 | 2016-08-24T11:57:17Z | [
"python",
"pandas",
"numpy",
"dataframe",
"interpolation"
] |
Multiprocessing - Shared Array | 39,122,270 | <p>So I'm trying to implement multiprocessing in python where I wish to have a Pool of 4-5 processes running a method in parallel. The purpose of this is to run a total of thousand Monte simulations (250-200 simulations per process) instead of running 1000. I want each process to write to a common shared array by acqui... | 0 | 2016-08-24T11:37:10Z | 39,122,466 | <p>Not tested, but something like that should work.
The array and lock are shared between processes.</p>
<pre><code>from multiprocessing import Process
def f(array,lock):
lock.acquire()
#modify array here
lock.release()
if __name__ == '__main__':
size=100
multiprocessing.Array('i', size) #c type ... | 0 | 2016-08-24T11:46:49Z | [
"python",
"multiprocessing",
"shared"
] |
Multiprocessing - Shared Array | 39,122,270 | <p>So I'm trying to implement multiprocessing in python where I wish to have a Pool of 4-5 processes running a method in parallel. The purpose of this is to run a total of thousand Monte simulations (250-200 simulations per process) instead of running 1000. I want each process to write to a common shared array by acqui... | 0 | 2016-08-24T11:37:10Z | 39,124,004 | <p>Since you're only returning state from the child process to the parent process, then using a shared array and explicity locks is overkill. You can use <code>Pool.map</code> or <code>Pool.starmap</code> to accomplish exactly what you need. For example:</p>
<pre><code>from multiprocessing import Pool
class Adder:
... | 0 | 2016-08-24T12:58:04Z | [
"python",
"multiprocessing",
"shared"
] |
BitVector performance issues | 39,122,376 | <p>I need to use bits for operations in a crypto scheme, however, when I transform variables and functions into BitVector(bitstring/int/textstrings="") the result is a very long bitvector, at times of length in the thousands. Now, this slows my encryption and operations on these BitVectors a LOT. How can I overcome thi... | 0 | 2016-08-24T11:42:12Z | 39,122,656 | <p>Your question does not have much information. Nonetheless, the documentation says that you can set the size of your BitVector.</p>
<pre><code>bv = BitVector( intVal = 0, size = 8 )
</code></pre>
<p>Hope that helps!</p>
| 0 | 2016-08-24T11:55:44Z | [
"python",
"encryption",
"bitvector"
] |
BitVector performance issues | 39,122,376 | <p>I need to use bits for operations in a crypto scheme, however, when I transform variables and functions into BitVector(bitstring/int/textstrings="") the result is a very long bitvector, at times of length in the thousands. Now, this slows my encryption and operations on these BitVectors a LOT. How can I overcome thi... | 0 | 2016-08-24T11:42:12Z | 39,123,978 | <p>This is shameless self-advertising but I made <a href="https://pypi.python.org/pypi/BytesOp" rel="nofollow">https://pypi.python.org/pypi/BytesOp</a> exactly for this.</p>
<p>You could use it like this</p>
<pre><code>from BytesOp import op_xor
msg=b"asdf"
h1=b"1234"
msgxored=op_xor(msg,h1)
print(msgxored,op_xor(msg... | 1 | 2016-08-24T12:56:55Z | [
"python",
"encryption",
"bitvector"
] |
Change Dyno types through the Heroku API | 39,122,456 | <p>I have an app running in Heroku; I'm using the <a href="https://elements.heroku.com/addons/scheduler" rel="nofollow">Heroku scheduler</a> to run a python script that scales the number of dynos at particular times of the day, using the <a href="https://github.com/heroku/heroku.py" rel="nofollow">python API</a> (follo... | -1 | 2016-08-24T11:46:21Z | 39,288,180 | <p>A chat with the Heroku support has confirmed that the python API has no command to perform this operation; I have therefore resorted to add the following script to the app (following <a href="http://stackoverflow.com/a/27153236/1237531">this answer</a>):</p>
<pre><code>#!/bin/bash
curl -s https://s3.amazonaws.com/... | 0 | 2016-09-02T08:51:14Z | [
"python",
"heroku"
] |
Pass data from django middleware.process_view to the template context | 39,122,541 | <p>I have a custom middleware and during its process_view I get some token. And I need to pass this token to the rendered result html.</p>
<p>I thought that context_processor is a good place to modify context, but looks like it's hard to pass some data from middleware into processor.</p>
<p>But it seems that the only... | 0 | 2016-08-24T11:50:52Z | 39,122,722 | <p>That error is raised when you try and use dictionary item assignment:</p>
<pre><code>request['my_key'] = 'my_value'
</code></pre>
<p>But the request is not a dictionary, it is an object. As with all objects - like the Django models which you must be familiar with - you need to set attributes, not items.</p>
<pre>... | 1 | 2016-08-24T11:59:11Z | [
"python",
"django"
] |
Django-taggit tags with whitespace in name? | 39,122,552 | <p>How can I use tags with whitespace char in their name with django-taggit? For example, "Some simple tag"? Because if I ctrl-c=>ctrl-v some phrase to tags field in my admin panel, on page with this tag i get something like this:</p>
<pre><code>Reverse for 'posts_by_tag' with arguments '()' and keyword arguments '{u'... | 0 | 2016-08-24T11:51:21Z | 39,128,388 | <p>Multi-word tags in Wagtail need to be quoted, e.g. "my tag". </p>
<p>There are two pull requests open that address this topic:</p>
<ul>
<li><a href="https://github.com/torchbox/wagtail/issues/1874" rel="nofollow">https://github.com/torchbox/wagtail/issues/1874</a> to improve documentation and explain users that at... | 1 | 2016-08-24T16:18:06Z | [
"python",
"django",
"django-taggit",
"wagtail"
] |
Setting axis values in numpy/matplotlib.plot | 39,122,554 | <p>I am in the process of learning numpy. I wish to plot a graph of Planck's law for different temperatures and so have two <code>np.array</code>s, <code>T</code> and <code>l</code> for temperature and wavelength respectively. </p>
<pre><code>import scipy.constants as sc
import numpy as np
import matplotlib.pyplot as ... | 2 | 2016-08-24T11:51:23Z | 39,122,887 | <p>The problem is that you're not giving your wavelength values to <code>plt.plot()</code>, so Matplotlib puts the index into the array on the horizontal axis as a default. Quick solution:</p>
<pre><code>plt.plot(l, B)
</code></pre>
<p>Without explicitly setting tick labels, that gives you this:</p>
<p><a href="http... | 3 | 2016-08-24T12:07:07Z | [
"python",
"numpy",
"matplotlib"
] |
Setting axis values in numpy/matplotlib.plot | 39,122,554 | <p>I am in the process of learning numpy. I wish to plot a graph of Planck's law for different temperatures and so have two <code>np.array</code>s, <code>T</code> and <code>l</code> for temperature and wavelength respectively. </p>
<pre><code>import scipy.constants as sc
import numpy as np
import matplotlib.pyplot as ... | 2 | 2016-08-24T11:51:23Z | 39,122,897 | <p>You need to use same size lists at the <code>xtick</code>. Try setting the axis values separately from the plot value as below.</p>
<pre><code>import scipy.constants as sc
import numpy as np
import matplotlib.pyplot as plt
lhinm = 10000 # Highest wavelength in nm
T = np.linspace(200, 1000, ... | 0 | 2016-08-24T12:07:48Z | [
"python",
"numpy",
"matplotlib"
] |
Setting axis values in numpy/matplotlib.plot | 39,122,554 | <p>I am in the process of learning numpy. I wish to plot a graph of Planck's law for different temperatures and so have two <code>np.array</code>s, <code>T</code> and <code>l</code> for temperature and wavelength respectively. </p>
<pre><code>import scipy.constants as sc
import numpy as np
import matplotlib.pyplot as ... | 2 | 2016-08-24T11:51:23Z | 39,122,917 | <p>You can supply the <code>x</code> values to <code>plt.plot</code>, and let matplotlib take care of setting the tick labels.</p>
<p>In your case, you could plot <code>plt.plot(l, B)</code>, but then you still have the ticks in m, not nm.</p>
<p>You could therefore convert your <code>l</code> array to nm before plot... | 3 | 2016-08-24T12:09:04Z | [
"python",
"numpy",
"matplotlib"
] |
Python client for free SOAP service using socket giving error? | 39,122,569 | <p>This is the code that I'm trying to use:</p>
<pre><code>import os
import socket
import httplib
packet='''
<?xml version="1.0" encoding="utf-8"?>
<soap12:Envelope xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"xmlns:xsd="http://www.w3.org/2001/XMLSchema"xmlns:soap12="http://www.w3.org/2003/05/soap-en... | 0 | 2016-08-24T11:52:05Z | 39,122,884 | <p>You ought to use <a href="https://fedorahosted.org/suds/wiki/Documentation" rel="nofollow">suds</a> to consume SOAP web service.</p>
<p><strong>EDIT: Example</strong></p>
<pre><code>import suds
import suds.transport
from suds.transport.http import HttpAuthenticated
class MyException(Exception):
pass
servic... | 0 | 2016-08-24T12:07:05Z | [
"python",
"web-services",
"sockets",
"soap",
"python-sockets"
] |
Python: reducing cyclomatic complexity | 39,122,645 | <p>I need help in reducing the cyclomatic complexity of the following code: </p>
<pre><code>def avg_title_vec(record, lookup):
avg_vec = []
word_vectors = []
for tag in record['all_titles']:
titles = clean_token(tag).split()
for word in titles:
if word in lookup.value:
... | 0 | 2016-08-24T11:55:12Z | 39,126,639 | <p>It probably doesn't count as a correct answer really, as in the end cyclomatic complexity isn't reduced.</p>
<p>This variant is a little bit shorter, but I can't see any way it can be generalized in. And it seems that you need those <code>if</code>s you have.</p>
<pre><code>def avg_title_vec(record, lookup):
w... | 0 | 2016-08-24T14:50:38Z | [
"python",
"code-review",
"cyclomatic-complexity"
] |
Django 1.8.7 get_readonly_fields seems like have a bug | 39,122,829 | <p>I try something with readonly field in Django 1.8.7, let say I have some code like the following:</p>
<pre><code>class MyAdmin(admin.ModelAdmin):
readonly_fields = ('a', 'b')
def get_readonly_fields(self, request, obj=None):
if not request.user.is_superuser:
self.readonly_fields += ('c'... | 0 | 2016-08-24T12:04:18Z | 39,123,123 | <p>The bug is not in Django, but in your code. In your <code>get_readonly_fields</code> method you <em>modify</em> the <code>readonly_fields</code> attribute; those modifications persist, since the admin object lives for the lifetime of the process.</p>
<p>Don't do that. <code>get_readonly_fields</code> is supposed to... | 1 | 2016-08-24T12:17:54Z | [
"python",
"django",
"get",
"field",
"readonly"
] |
How do I remove blank elements from an AstroPy table? | 39,122,843 | <p>I'm trying to remove any elements from an astropy table that have blank fields. However, all the help I have found so far just tells me how to replace it. I have tried replacing these blank fields (denoted by '--') with zeroes. However, whenever I try to filter them out with traditional python loops, they stay put. ... | -1 | 2016-08-24T12:05:07Z | 39,125,554 | <p>You cannot!</p>
<p>Removing single fields from a <code>astropy.table.Table</code> is impossible because it is based on <code>numpy</code>. Therefore you can only remove whole columns or rows but not single elements.</p>
<p>For example you have such a Table:</p>
<pre><code>>>> from astropy.table import Ta... | 1 | 2016-08-24T14:04:44Z | [
"python",
"pandas",
"python-3.5",
"astropy"
] |
Get read of ['\n'] in python3 with paramiko | 39,122,910 | <p>I've just started to do some monitoring tool in python3 and I wondered, if I can get 'clear' number output through ssh. I've made some script:</p>
<pre><code>import os
import paramiko
command = 'w|grep \"load average\"|grep -v grep|awk {\'print ($10+$11+$12)/3*100\'};'
ssh = paramiko.SSHClient()
ssh.set_missing_ho... | 0 | 2016-08-24T12:08:29Z | 39,122,949 | <p>Instead of <code>print(stdout.readlines())</code> you should iterate over each element in the list that is returned by <code>stdout.readlines()</code> and <code>strip</code> it, possibly converting it to <code>float</code> as well (depends what you are planning to do with this data later).</p>
<p>You can use list c... | 1 | 2016-08-24T12:10:19Z | [
"python",
"python-3.x",
"output",
"special-characters",
"paramiko"
] |
Get read of ['\n'] in python3 with paramiko | 39,122,910 | <p>I've just started to do some monitoring tool in python3 and I wondered, if I can get 'clear' number output through ssh. I've made some script:</p>
<pre><code>import os
import paramiko
command = 'w|grep \"load average\"|grep -v grep|awk {\'print ($10+$11+$12)/3*100\'};'
ssh = paramiko.SSHClient()
ssh.set_missing_ho... | 0 | 2016-08-24T12:08:29Z | 39,122,954 | <p><code>.readlines()</code> returns a <em>list</em> of separate lines. In your case there is just one line, you can just extract it by indexing the list, then strip of the whitespace at the end:</p>
<pre><code>firstline = stdout.readlines()[0].rstrip()
</code></pre>
<p>This is still a string, however. If you expecte... | 3 | 2016-08-24T12:10:29Z | [
"python",
"python-3.x",
"output",
"special-characters",
"paramiko"
] |
Pyspark error for java heap space error | 39,122,955 | <p>I am new to spark using <strong>Spark 1.6.1</strong> with <strong>two workers</strong> each having <strong>Memory 1GB</strong> and <strong>5 Cores</strong> assigned, running this code on a 33MB file. </p>
<p>This Code is used to Index word in spark.</p>
<pre><code>from textblob import TextBlob as tb
from textblob_... | 0 | 2016-08-24T12:10:32Z | 39,124,549 | <p>That's because of the .collect(). You lose everything when you transform your rdd into a classic python variable (or np.array), all data is collected on the same place.</p>
| 0 | 2016-08-24T13:21:50Z | [
"python",
"numpy",
"optimization",
"pyspark"
] |
How do you pass multiple arguments to a Luigi subtask? | 39,123,021 | <p>I have a Luigi task that <code>requires</code> a subtask. The subtask depends on parameters passed through by the parent task (i.e. the one that is doing the <code>require</code>ing). I know you can specify a parameter that the subtask can use by setting...</p>
<pre><code>def requires(self):
return subTask(some... | 0 | 2016-08-24T12:13:41Z | 39,126,080 | <p>Ok, so I found that this works as expected in python 3.5 (and the problem is still there in 3.4).</p>
<p>Don't have the time to get to the bottom of this today so no further details.</p>
| 0 | 2016-08-24T14:27:36Z | [
"python",
"luigi"
] |
How do you pass multiple arguments to a Luigi subtask? | 39,123,021 | <p>I have a Luigi task that <code>requires</code> a subtask. The subtask depends on parameters passed through by the parent task (i.e. the one that is doing the <code>require</code>ing). I know you can specify a parameter that the subtask can use by setting...</p>
<pre><code>def requires(self):
return subTask(some... | 0 | 2016-08-24T12:13:41Z | 39,512,474 | <blockquote>
<p>What is the best way to send through an arbitrary number of
parameters, of whatever types I want?</p>
</blockquote>
<p>The best way is to use named parameters, e.g.,</p>
<pre><code>#in requires
return MySampleSubTask(x=local_x, y=local_y)
class MySampleSubTask(luigi.Task):
x = luigi.Parameter... | 0 | 2016-09-15T13:34:52Z | [
"python",
"luigi"
] |
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