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 NameError: name 'encrypt' is not defined | 38,631,474 | <p>When I attempt to run this it says NameError: name 'encrypt' is not defined.</p>
<pre><code>MAX_KEY_SIZE = 26
def getMode():
while True:
print('Do you wish to encrypt or decrypt a message?')
mode = input().lower()
if mode in "encrypt" 'e' 'decrypt' 'd'.split():
r... | 0 | 2016-07-28T08:52:31Z | 38,631,721 | <p>Gotcha! <code>input</code> tries to eval your input (as such, it's named very misleadingly). Use <code>raw_input</code> for capturing user's wishes in string format.</p>
<p>Basically what <code>input</code> does is it takes <code>raw_input</code> and pipes it to <code>eval</code>: now you're trying to evaluate a st... | 1 | 2016-07-28T09:03:49Z | [
"python",
"nameerror"
] |
Python NameError: name 'encrypt' is not defined | 38,631,474 | <p>When I attempt to run this it says NameError: name 'encrypt' is not defined.</p>
<pre><code>MAX_KEY_SIZE = 26
def getMode():
while True:
print('Do you wish to encrypt or decrypt a message?')
mode = input().lower()
if mode in "encrypt" 'e' 'decrypt' 'd'.split():
r... | 0 | 2016-07-28T08:52:31Z | 38,632,362 | <pre><code>MAX_KEY_SIZE = 26
def getMode():
while True:
print ('Do you wish to encrypt or decrypt a message?')
mode = input().lower()
if mode in "encrypt" 'e' 'decrypt' 'd'.split():
return mode
else:
print('Enter either "encrypt" or "e" or "decrypt" or "d"... | 0 | 2016-07-28T09:29:51Z | [
"python",
"nameerror"
] |
Python NameError: name 'encrypt' is not defined | 38,631,474 | <p>When I attempt to run this it says NameError: name 'encrypt' is not defined.</p>
<pre><code>MAX_KEY_SIZE = 26
def getMode():
while True:
print('Do you wish to encrypt or decrypt a message?')
mode = input().lower()
if mode in "encrypt" 'e' 'decrypt' 'd'.split():
r... | 0 | 2016-07-28T08:52:31Z | 38,632,416 | <p>Expanding on <a href="https://stackoverflow.com/questions/38631474/38631721#38631721">pogo's answer</a>, which is correct...</p>
<p>What surprised me (and apparently many others) is that the cluster of strings in the <code>if mode in ...:</code> line is <em>not</em> a syntax error.</p>
<pre><code>if mode in "encry... | 0 | 2016-07-28T09:31:42Z | [
"python",
"nameerror"
] |
how to paging from top 99 rows in sqlalchemy? | 38,631,475 | <p>select *from
(select *from new_count_goods_details limit 99)
sub limit 10 offset 90;</p>
<p>how to achieve the mysql statement by sqlalchemy?</p>
<p>this is my code:</p>
<pre><code> limit_subquery = q.filter(StyleList.add_time >= yesterday_18).\
filter(StyleList.add_time <= today_18).\
... | 0 | 2016-07-28T08:52:34Z | 38,632,661 | <p>You need to select from subquery</p>
<pre><code>q = session.query(limit_subquery).offset((p-1)*ps).limit(ps)
</code></pre>
| 0 | 2016-07-28T09:41:55Z | [
"python",
"sqlalchemy"
] |
Python third party Module global import | 38,631,493 | <p>i'm currently into learning a bit of python and i want to import the paperclip third party module into my python file.</p>
<p>Yes, i already installed the pyperclip module with
<code>pip install pyperclip</code>.</p>
<p>if i create a file on my desktop, i get an error which says
<code>
Traceback (most recent cal... | 0 | 2016-07-28T08:53:17Z | 38,631,601 | <p>You can do this :</p>
<p>pip3.5 install paperclip</p>
<p>pyperclip is install but not paperclip</p>
| 0 | 2016-07-28T08:58:32Z | [
"python",
"import",
"module"
] |
Python third party Module global import | 38,631,493 | <p>i'm currently into learning a bit of python and i want to import the paperclip third party module into my python file.</p>
<p>Yes, i already installed the pyperclip module with
<code>pip install pyperclip</code>.</p>
<p>if i create a file on my desktop, i get an error which says
<code>
Traceback (most recent cal... | 0 | 2016-07-28T08:53:17Z | 38,632,431 | <p>Found the problem. </p>
<p>The <code>pip install</code>automatically used <code>pip3.5 install</code> <br/>
whereas <code>python test.py</code>didn't use <code>python3.5 test.py</code></p>
<p>Thank you @Bakurìu </p>
<p>Is there a way i can define <code>python3.5</code>as <code>python</code>?</p>
| 0 | 2016-07-28T09:32:12Z | [
"python",
"import",
"module"
] |
Python 3.4.4 - pip collection error | 38,631,525 | <p>I would really appreciate some help on the below query - I've been trying to get pip to work for the best of a day and really struggling. </p>
<p>Regardless of which module I try to install I keep getting a "Could not find a version that satisfies the requirement openpyxl (from version s: )
No matching distributio... | 0 | 2016-07-28T08:54:47Z | 38,631,627 | <p>Have you tried to check the internet connection?
From your screenshot, seems like you cannot access the URL as follow:.<br>
<a href="https://pypi.python.org/simple/openpyxl/" rel="nofollow">https://pypi.python.org/simple/openpyxl/</a></p>
| 0 | 2016-07-28T08:59:58Z | [
"python",
"pip"
] |
How can I create a word that does not contain the previous letter contained in the word? | 38,631,534 | <p>I see the point of the question stays in the first <code>elif</code>:</p>
<pre><code>import random as rnd
vowels="aeiou"
consonants="bcdfghlmnpqrstvz"
alphabet=vowels+consonants
vocabulary={}
index=0
word=""
positions=[]
while index<5:
random_lenght=rnd.randint(2,5)
while len(word)<random_lenght:
... | -1 | 2016-07-28T08:55:14Z | 38,633,158 | <p>What you want should be something like this (based on your implementation) :</p>
<pre><code>import random as rnd
vowels="aeiou"
consonants="bcdfghlmnpqrstvz"
alphabet=vowels+consonants
vocabulary={}
index=0
word=""
positions=[]
while index<5:
random_lenght=rnd.randint(2,5)
while len(word)<random_len... | 0 | 2016-07-28T10:02:27Z | [
"python",
"vocabulary"
] |
How can I turn csv file row column value into (row, column, value) in Python | 38,631,570 | <p><a href="http://i.stack.imgur.com/Yvgkg.png" rel="nofollow">for example, I read this 3x3 csv file.</a></p>
<pre><code> 01 02 03
01 | 11 | 22 | 33 |
02 | 44 | 55 | 66 |
03 | 77 | 88 | 99 |
</code></pre>
<p><a href="http://i.stack.imgur.com/JzCkm.png" rel="nofollow">Then ,I want to output a new textfile... | 0 | 2016-07-28T08:56:57Z | 38,632,180 | <p>suppose you have example.csv file like this:</p>
<pre><code>11|22|33
44|55|66
77|88|99
</code></pre>
<hr>
<pre><code>with open("example.csv") as handler:
for r,l in enumerate(handler):
for col, e in enumerate(l.split('|')):
print('row: %s, col %s, value: %s' % (r+1, col+1, e))
</code></pre... | 0 | 2016-07-28T09:22:49Z | [
"python",
"python-2.7",
"csv",
"row"
] |
How can I turn csv file row column value into (row, column, value) in Python | 38,631,570 | <p><a href="http://i.stack.imgur.com/Yvgkg.png" rel="nofollow">for example, I read this 3x3 csv file.</a></p>
<pre><code> 01 02 03
01 | 11 | 22 | 33 |
02 | 44 | 55 | 66 |
03 | 77 | 88 | 99 |
</code></pre>
<p><a href="http://i.stack.imgur.com/JzCkm.png" rel="nofollow">Then ,I want to output a new textfile... | 0 | 2016-07-28T08:56:57Z | 38,634,200 | <pre><code>with open("t.csv","rb") as open_file:#Read the file
my_file = open_file.read().decode('utf-8','ignore')
data = my_file.splitlines()
data = [r.split('|') for r in data]
row_len = len(data)
for i,j in enumerate(data):
col_len = len(data[0])
start_index = 0
while s... | 0 | 2016-07-28T10:49:49Z | [
"python",
"python-2.7",
"csv",
"row"
] |
Can you extend SQLAlchemy Query class and use different ones in the same session? | 38,631,651 | <p>I am using SQL Alchemy ORM and have some classes/tables each of which may have some custom queries. Let's say, I want to add to table <code>Fruit</code> the filtering possibility called <code>with_seed</code> giving me only fruits with seeds, and to table <code>Cutlery</code> the filtering method <code>is_sharp</cod... | 1 | 2016-07-28T09:01:12Z | 38,655,960 | <p>You can pass session to Query constructor</p>
<pre><code>CustomQuery(entities=[Fruit], session=session).with_seed().delete(synchronize_session='fetch')
</code></pre>
| 0 | 2016-07-29T10:01:32Z | [
"python",
"orm",
"sqlalchemy"
] |
while true loop doesn't work inside another in python | 38,631,668 | <p>I have a <code>while true</code> loop (code below) within another loop. I want to check if you clicked on a button and if so, change the cursor into an image that I have imported before. I tried to do that by hiding the cursor and let an image follow it. But when I run this, it hides the cursor draws the image where... | 2 | 2016-07-28T09:01:47Z | 38,633,478 | <p>Change your code to this:</p>
<pre><code>while True:
for event in pygame.event.get():
if event.type == MOUSEBUTTONUP:
mousex, mousey = pygame.mouse.get_pos()
if mousex > 100 and mousex < 200 and mousey > 50 and mousey < 100: # a button on my screen
p... | 1 | 2016-07-28T10:15:47Z | [
"python",
"while-loop"
] |
Running a timer for function which will be called later (python) | 38,631,717 | <pre><code>def child_thread(i):
global lock
while True:
try:
lock.acquire()
f1()
f2()
f3()
finally :
lock.release()
thread1 = threading.Thread(target=child_thread, args=(0,))
thread1.start()
</code></pre>
<p>here i need a... | 0 | 2016-07-28T09:03:40Z | 38,631,841 | <p>The function will be call after 30.0 seconds</p>
<pre><code>from threading import Timer
def hello():
print "hello, world"
t = Timer(30.0, hello)
t.start()
</code></pre>
| 0 | 2016-07-28T09:08:30Z | [
"python"
] |
Python extract variables from an imported file | 38,632,067 | <p>I've 3 files. One is for defining the variables and other two contain the required modules.</p>
<p><strong>variable.py</strong></p>
<pre><code>my_var = ""
</code></pre>
<p><strong>test.py</strong></p>
<pre><code>import variable
def trial():
variable.my_var = "Hello"
</code></pre>
<p><strong>main.py</strong... | 1 | 2016-07-28T09:17:30Z | 38,633,208 | <p>What you want to achieve is not possible. <code>from MODULE import *</code> imports all the variables names and the values into your namespace, but not the variables themselves. The variables are allocated in your local namespace and changing their value is therefore not reflected onto their origin. However, changes... | 2 | 2016-07-28T10:04:09Z | [
"python",
"import"
] |
Hi, I am trying to add weekstart column | 38,632,209 | <p>In my current table I am having date column and from that column I am able to find out weekday.By using to_timedelta I have created week_start column but it is not giving correct date.
Here the code is:</p>
<pre><code>final_data['weekday'] = final_data['DateOfInvoice'].dt.weekday
final_data['Weekstart'] = final_da... | 1 | 2016-07-28T09:23:57Z | 38,632,260 | <p>IIUC you can construct a TimedeltaIndex and subtract from the other column:</p>
<pre><code>In [152]:
df['weekstart'] = df['Date'] - pd.TimedeltaIndex(df['weekday'], unit='D')
df
Out[152]:
Date weekday weekstart
0 2016-07-23 5 2016-07-18
</code></pre>
<p>in fact the weekday column is unnecessary:<... | 1 | 2016-07-28T09:25:38Z | [
"python",
"pandas"
] |
How to set parameters of the Adadelta Algorithm in Tensorflow correctly? | 38,632,536 | <p>I've been using Tensorflow for regression purposes.
My neural net is very small with 10 input neurons, 12 hidden neurons in a single layer and 5 output neurons.</p>
<ul>
<li>activation function is relu</li>
<li>cost is square distance between output and real value</li>
<li>my neural net trains correctly with other ... | 1 | 2016-07-28T09:36:13Z | 38,636,092 | <h3>Short answer: don't use Adadelta</h3>
<p>Very few people use it today, you should instead stick to:</p>
<ul>
<li><code>tf.train.MomentumOptimizer</code> with <code>0.9</code> momentum is very standard and works well. The drawback is that you have to find yourself the best learning rate.</li>
<li><code>tf.train.RM... | 1 | 2016-07-28T12:15:58Z | [
"python",
"neural-network",
"tensorflow"
] |
Encode IP address using all printable characters in Python 2.7.x | 38,632,580 | <p>I would like to encode an IP address in as short a string as possible using all the printable characters. According to <a href="https://en.wikipedia.org/wiki/ASCII#Printable_characters" rel="nofollow">https://en.wikipedia.org/wiki/ASCII#Printable_characters</a> these are codes 20hex to 7Ehex.</p>
<p>For example:</p... | 4 | 2016-07-28T09:38:18Z | 38,633,276 | <p>An IP stored in binary is 4 bytes.</p>
<p>You can encode it in 5 printable ASCII characters using Base85.</p>
<p>Using more printable characters won't be able to shorten the resulting string more than that.</p>
<pre><code>import ipaddress
import base64
def encode(ip):
ip_as_integer = int(ipaddress.IPv4Addres... | 5 | 2016-07-28T10:06:54Z | [
"python"
] |
Encode IP address using all printable characters in Python 2.7.x | 38,632,580 | <p>I would like to encode an IP address in as short a string as possible using all the printable characters. According to <a href="https://en.wikipedia.org/wiki/ASCII#Printable_characters" rel="nofollow">https://en.wikipedia.org/wiki/ASCII#Printable_characters</a> these are codes 20hex to 7Ehex.</p>
<p>For example:</p... | 4 | 2016-07-28T09:38:18Z | 39,681,744 | <p>I found this question looking for a way to use base85/ascii85 on python 2. Eventually I discovered a couple of projects available to install via pypi. I settled on one called <code>hackercodecs</code> because the project is specific to encoding/decoding whereas the others I found just offered the implementation as... | 1 | 2016-09-24T23:00:56Z | [
"python"
] |
Can I run multiple threads in a single heroku (python) dyno? | 38,632,621 | <p>Does the <code>threading</code> module work when running a single dyno on heroku?
eg:</p>
<pre><code>import threading
import time
import random
def foo(x, s):
time.sleep(s)
print ("%s %s %s" % (threading.current_thread(), x, s))
for x in range(4):
threading.Thread(target=foo, args=(x, random.rand... | 1 | 2016-07-28T09:40:06Z | 38,729,726 | <p>Yes. This works fine =) Just tested on the latest Python 3 release. You can easily test this on Heroku yourself.</p>
<p>Heroku dynos are using virtual CPU cores, but threading still works fine.</p>
<p><strong>EDIT</strong>: Here's my Heroku logs</p>
<pre><code>2016-08-02T20:18:35.040230+00:00 heroku[test.1]: Stat... | 1 | 2016-08-02T20:19:16Z | [
"python",
"multithreading",
"heroku"
] |
Parsing a json nested dictionary in python | 38,632,687 | <p>I need to reach the value "y "of "B" in result.</p>
<pre><code>{
"Response": {
"Result": [2]
0: {
"A": "x"
"B": "y"
"C": "z"
}
... | -2 | 2016-07-28T09:43:02Z | 38,632,782 | <p>The key <code>0</code> is not under <code>"Result"</code> you should use <code>['Response'][0]['B']</code></p>
| 2 | 2016-07-28T09:47:34Z | [
"python",
"json"
] |
Pandas: selecting multiple groups for inset plot | 38,632,724 | <p>I have a group data frame (<code>grouped_df</code>) used for plotting in the following way:</p>
<pre><code>grouped_df[['col1','col2','col3']].sum().plot(kind='bar')
</code></pre>
<p>resulting in the expected plot, which contains a group-wise sum for all three columns. However, for some of the groups these sums are... | 0 | 2016-07-28T09:45:03Z | 38,633,133 | <p>Is this what you are looking for?</p>
<pre><code>def apply_cut_off(x1,x2,x3, CUT_OFF):
if x1 < CUT_OFF: return False
elif x2 < CUT_OFF: return False
elif x3 < CUT_OFF: return False
return True
grouped_sum = grouped_df[['col1','col2','col3']].sum()
cutoff_df = grouped_sum[ grouped_sum.ap... | 2 | 2016-07-28T10:01:35Z | [
"python",
"pandas"
] |
XlsxWriter: add color to cells | 38,632,753 | <p>I try to write dataframe to xlsx and give color to that.
I use</p>
<pre><code>worksheet.conditional_format('A1:C1', {'type': '3_color_scale'})
</code></pre>
<p>But it's not give color to cell. And I want to one color to this cells.
I saw <code>cell_format.set_font_color('#FF0000')</code>
but there is don't specify... | 1 | 2016-07-28T09:46:11Z | 38,633,106 | <p>The problem is that <code>worksheet.write('A1:C1', 'Ray', format)</code> is used only to write a single cell.
A possible solution to write more cells in a row, is use <code>write_row()</code>.</p>
<pre><code>worksheet.write_row("A1:C1", ['Ray','Ray2','Ray3'], format)
</code></pre>
<p>Remember that <strong>write_r... | 1 | 2016-07-28T10:00:27Z | [
"python",
"pandas",
"xlsxwriter"
] |
Python 3: PyQt: Make checkbox disabled + not grayed out + display tooltip | 38,632,825 | <p>The only way I found to do this is <a href="http://stackoverflow.com/questions/35190259/how-to-make-qcheckbox-readonly-but-not-grayed-out">here: How to make QCheckBox readonly, but not grayed-out</a>. This, however, disables mouse interactions with the control. But I need the tooltip to be displayed when mouse is ov... | 0 | 2016-07-28T09:49:04Z | 38,667,489 | <pre><code>#If your are not expecting this answer, sorry.
self.checkBox = QtGui.QCheckBox()
self.checkBox.setEnabled (False)
self.checkBox.setToolTip ('my checkBox')
</code></pre>
| 0 | 2016-07-29T21:06:22Z | [
"python",
"checkbox",
"pyqt",
"pyqt4",
"disabled-control"
] |
Python 3: PyQt: Make checkbox disabled + not grayed out + display tooltip | 38,632,825 | <p>The only way I found to do this is <a href="http://stackoverflow.com/questions/35190259/how-to-make-qcheckbox-readonly-but-not-grayed-out">here: How to make QCheckBox readonly, but not grayed-out</a>. This, however, disables mouse interactions with the control. But I need the tooltip to be displayed when mouse is ov... | 0 | 2016-07-28T09:49:04Z | 38,752,619 | <p>If I've understood correctly, this is what you'd be asking for, a disabled checkbox showing tooltips:</p>
<pre><code> import sys
from PyQt4 import QtGui, QtCore
class Example(QtGui.QWidget):
def __init__(self):
super(Example, self).__init__()
self.initUI()
def initUI(self):
... | 0 | 2016-08-03T20:01:39Z | [
"python",
"checkbox",
"pyqt",
"pyqt4",
"disabled-control"
] |
Shodan. Get all open ports for a net | 38,632,844 | <p>I want to get all the open ports for a network with Shodan (I know I can use <code>nmap</code> but I want to carry this out with Shodan).</p>
<p>The problem is that the website only shows the "TOP Services", and I would like to be given all the services.</p>
<p>For example, for this net: 195.53.102.0/24 I am given... | 0 | 2016-07-28T09:49:58Z | 38,667,275 | <p>When you use the api.search() Shodan search for a service banner. And a service banner can only have 1 port. </p>
<p>So, if you want to return all the port that a host can have, you should use api.host() </p>
<p>For example, </p>
<pre><code>import shodan
SHODAN_API_KEY = "XXXXXXXXXXXXXXXXXXXXXXx"
api = shodan.S... | 0 | 2016-07-29T20:50:56Z | [
"python",
"cidr",
"port-scanning",
"shodan"
] |
Sublime Text plugin - how to find all regions in selection | 38,632,861 | <p>How to find all regions in selection (regeon type too)?
If we calling this method:</p>
<pre><code>def chk_links(self,vspace):
url_regions = vspace.find_all("https?://[^\"'\s]+")
i=0
for region in url_regions:
cl = vspace.substr(region)
code = self.get_response(cl)
vspace.add_reg... | 0 | 2016-07-28T09:50:56Z | 38,644,598 | <p>The <code>Selection</code> class (returned by <code>View.sel()</code>) is essentially just a list of <code>Region</code> objects that represent the current selection. A <code>Region</code> can be empty, so the list always contains a least one region with a length of 0.</p>
<p>The only <a href="http://www.sublimetex... | 1 | 2016-07-28T18:55:04Z | [
"python",
"sublimetext2",
"sublimetext3",
"sublimetext",
"sublime-text-plugin"
] |
Python function with default argument inside loop | 38,632,891 | <pre><code>for i in range(5):
def test(i=i):
print(i)
test()
test()
test()
test()
test()
</code></pre>
<p>This prints 4 every time? Can someone help me understanding this.</p>
| 2 | 2016-07-28T09:52:01Z | 38,632,942 | <p>You redefine the <code>test</code> 4 times:</p>
<p>same as:</p>
<pre><code>#define test
def test(i = 0):
print(i)
#redefine test
def test(i = 1):
print(i)
#redefine test
def test(i = 2):
print(i)
#redefine test
def test(i = 3):
print(i)
#redefine test
def test(i = 4):
print(i)
</code></pre>... | 6 | 2016-07-28T09:54:09Z | [
"python",
"python-2.7"
] |
Python function with default argument inside loop | 38,632,891 | <pre><code>for i in range(5):
def test(i=i):
print(i)
test()
test()
test()
test()
test()
</code></pre>
<p>This prints 4 every time? Can someone help me understanding this.</p>
| 2 | 2016-07-28T09:52:01Z | 38,632,965 | <p>The function <code>test</code> is redefined every iteration of the loop.</p>
<p>By the time the loop is done, <code>test</code> is simply:</p>
<pre><code>def test(i=4):
print(i)
</code></pre>
| 3 | 2016-07-28T09:55:26Z | [
"python",
"python-2.7"
] |
Python function with default argument inside loop | 38,632,891 | <pre><code>for i in range(5):
def test(i=i):
print(i)
test()
test()
test()
test()
test()
</code></pre>
<p>This prints 4 every time? Can someone help me understanding this.</p>
| 2 | 2016-07-28T09:52:01Z | 38,633,127 | <p>first your script completes for loop, by the end of for loop, i value is 4</p>
<p>Then how many ever times, you can call <code>test()</code>, it will print 4</p>
<p>I have added few prints to your code, so that you can understand the flow better</p>
<pre><code>for i in range(5):
print(i)
def test(i=i):
... | 2 | 2016-07-28T10:01:10Z | [
"python",
"python-2.7"
] |
Can not load the json file of urls in python | 38,633,009 | <p>I tried to make a dict with python , I try to retrieve data via the url however json error what is wrong ? I use python 2.7.6</p>
<pre><code>import json
import urllib
json_string = 'http://localhost/csv/taxo.json'
parsed_json = json.loads(json_string)
print(parsed_json['genus'])
</code></pre>
<p>This error</p>
<... | -1 | 2016-07-28T09:57:06Z | 38,633,095 | <p><code>json_string</code> is not a <code>json</code> string. It is simply a URL...</p>
<p>You should get the <strong>content</strong> of this URL with one of the HTTP modules that are available for Python.</p>
<p>You should do it the other way around. The <code>requests</code> module gives you the option to do a GE... | 3 | 2016-07-28T10:00:11Z | [
"python",
"python-2.7"
] |
Can not load the json file of urls in python | 38,633,009 | <p>I tried to make a dict with python , I try to retrieve data via the url however json error what is wrong ? I use python 2.7.6</p>
<pre><code>import json
import urllib
json_string = 'http://localhost/csv/taxo.json'
parsed_json = json.loads(json_string)
print(parsed_json['genus'])
</code></pre>
<p>This error</p>
<... | -1 | 2016-07-28T09:57:06Z | 38,633,173 | <p>First you need to get the content of the url, for example with <strong>urllib</strong> try sth like this, but it won't work for python3:</p>
<pre><code>import json
import urllib
json_url = 'http://localhost/csv/taxo.json'
parsed_json = json.load(urllib.urlopen(json_url ))
print(parsed_json['genus'])
</code></pre>
... | 1 | 2016-07-28T10:02:59Z | [
"python",
"python-2.7"
] |
Can not load the json file of urls in python | 38,633,009 | <p>I tried to make a dict with python , I try to retrieve data via the url however json error what is wrong ? I use python 2.7.6</p>
<pre><code>import json
import urllib
json_string = 'http://localhost/csv/taxo.json'
parsed_json = json.loads(json_string)
print(parsed_json['genus'])
</code></pre>
<p>This error</p>
<... | -1 | 2016-07-28T09:57:06Z | 38,633,416 | <p>I think you want to do this:</p>
<p>First download the webpage:</p>
<pre><code>from urllib import urlopen
response_object = urlopen('http://localhost/csv/taxo.json')
</code></pre>
<p>After convert to string:</p>
<pre><code>response_string = response_object.read()
</code></pre>
<p>Then convert to dictionary:</p>... | 0 | 2016-07-28T10:12:53Z | [
"python",
"python-2.7"
] |
Scripting in logstash | 38,633,063 | <p>Is it possible to do python like scripting in logstash? I can import the csv data into elasticsearch using logstash. But I need to use update API instead of simply indexing all rows.</p>
<p>Here is my sample csv file...</p>
<pre><code>vi /tmp/head.txt
"Home","Home-66497273a5a83c99","Spice Xlife 350, 3.5inch Androi... | 7 | 2016-07-28T09:59:00Z | 38,648,184 | <p><code>elasticsearch</code> output plugin supports script parameters:</p>
<pre><code>output {
elasticsearch {
action => "update"
hosts => ["172.17.0.1"]
index => "logstash-%{+YYYY.MM.dd}"
workers => 1
script => "<your script here>"
script_type ... | 1 | 2016-07-28T23:12:43Z | [
"python",
"elasticsearch",
"groovy",
"logstash"
] |
Scripting in logstash | 38,633,063 | <p>Is it possible to do python like scripting in logstash? I can import the csv data into elasticsearch using logstash. But I need to use update API instead of simply indexing all rows.</p>
<p>Here is my sample csv file...</p>
<pre><code>vi /tmp/head.txt
"Home","Home-66497273a5a83c99","Spice Xlife 350, 3.5inch Androi... | 7 | 2016-07-28T09:59:00Z | 38,800,490 | <p>The event is passed to the script in your output using the <code>event</code> variable name (by default, but you can change it using the <code>script_var_name</code> setting).</p>
<p>So the script in your output needs to account for it.</p>
<pre><code> script => "ctx._source.parent = (ctx._source.parent ?: [... | 1 | 2016-08-06T04:17:30Z | [
"python",
"elasticsearch",
"groovy",
"logstash"
] |
Scripting in logstash | 38,633,063 | <p>Is it possible to do python like scripting in logstash? I can import the csv data into elasticsearch using logstash. But I need to use update API instead of simply indexing all rows.</p>
<p>Here is my sample csv file...</p>
<pre><code>vi /tmp/head.txt
"Home","Home-66497273a5a83c99","Spice Xlife 350, 3.5inch Androi... | 7 | 2016-07-28T09:59:00Z | 38,912,079 | <p>Since you have working python script, maybe that will be useful ? <a href="https://www.elastic.co/guide/en/elasticsearch/plugins/current/lang-python.html" rel="nofollow">https://www.elastic.co/guide/en/elasticsearch/plugins/current/lang-python.html</a></p>
<p>Regarding update nr 2 - I think the error can be fixed b... | 0 | 2016-08-12T07:17:37Z | [
"python",
"elasticsearch",
"groovy",
"logstash"
] |
Django sort by Articles with most similar tags | 38,633,110 | <p>I have a model for Articles and Tags, using filter for suggestions. </p>
<p>The article tags as <code>tags = article.tags.all()</code> then filter <code>Article.objects.filter(tags__in=tags)[:5]</code> what I'd like is to add a sort by tags similar.</p>
<p>Model for Article and Tags</p>
<pre><code>class Article(m... | 0 | 2016-07-28T10:00:35Z | 38,635,533 | <p>I would suggest to use app <a href="http://django-taggit.readthedocs.io/en/latest/index.html" rel="nofollow">django-taggit</a>. <code>TaggableManager</code> has method <code>similar_objects</code> which does exactly what you want.</p>
| 0 | 2016-07-28T11:51:08Z | [
"python",
"django"
] |
Arrange the multi-similar data efficiently | 38,633,246 | <p>The datafile showed here is the measuring record exported from instrument. </p>
<p>I uploaded it <a href="https://drive.google.com/file/d/0B7FE0kxAL8kQSmxoMEhHUjV0VUk/view?usp=sharing" rel="nofollow">here</a>, anyone interested can download it. </p>
<h3>Background</h3>
<pre><code>Sample
RECORD-1
FID1, FID2, f... | 0 | 2016-07-28T10:05:46Z | 38,639,897 | <p>I think you are looking for something like this:</p>
<pre><code>import pandas as pd
# Whole datafile with several samples record inside
with open("record.txt",'r') as f:
mylist = f.read().splitlines()
dataset = []
while True:
try:
## The record for each sample length in 803 lines
lines, ... | 1 | 2016-07-28T14:53:12Z | [
"python",
"arrays",
"pandas",
"dataframe"
] |
Error while testing the raise of self-defined exceptions (using assertRaises()) | 38,633,263 | <p>I am creating tests for a python project. The normal tests work just fine, however I want to test if in a certain condition my function raises a self-defined exception. Therefor I want to use assertRaises(Exception, Function). Any ideas?</p>
<p>The function that raises the exception is:</p>
<pre><code>def connect(... | 1 | 2016-07-28T10:06:18Z | 38,633,401 | <p><code>assertRaises</code> expects to actually <a href="https://docs.python.org/3.4/library/unittest.html#unittest.TestCase.assertRaises" rel="nofollow"><em>perform</em> the call</a>. Yet, you already perform it by yourself, thereby throwing the error before <code>assertRaises</code> actually executes.</p>
<pre><cod... | 5 | 2016-07-28T10:12:12Z | [
"python",
"exception"
] |
Use base class's property/attribute as a table column? | 38,633,319 | <p>A game engine provides me with a <code>Player</code> class with a <code>steamid</code> property (coming from C++, this is just a basic example on what it would look like in Python):</p>
<pre><code># game_engine.py
class Player:
def __init__(self, steamid):
self.__steamid = steamid
@property
d... | 8 | 2016-07-28T10:08:58Z | 38,675,933 | <p>this could be done using <a href="http://docs.sqlalchemy.org/en/latest/orm/mapping_styles.html#classical-mappings" rel="nofollow">classical mapping</a></p>
<pre><code>from sqlalchemy import Column, Integer, Table
from sqlalchemy.orm import mapper
from sqlalchemy.ext.hybrid import hybrid_property
class MyPlayer(Pl... | 1 | 2016-07-30T16:09:32Z | [
"python",
"python-3.x",
"inheritance",
"properties",
"sqlalchemy"
] |
Use base class's property/attribute as a table column? | 38,633,319 | <p>A game engine provides me with a <code>Player</code> class with a <code>steamid</code> property (coming from C++, this is just a basic example on what it would look like in Python):</p>
<pre><code># game_engine.py
class Player:
def __init__(self, steamid):
self.__steamid = steamid
@property
d... | 8 | 2016-07-28T10:08:58Z | 38,678,734 | <p>This is simpler than you might expect. The solution below is roughly equivalent to the one from r-m-n, but more straightforward because it uses modern declarative mapping. There is no need for <code>@hybrid_property</code>, you can just inherit <code>steamid</code> from the parent class.</p>
<pre><code># my_plugin.... | 2 | 2016-07-30T21:39:43Z | [
"python",
"python-3.x",
"inheritance",
"properties",
"sqlalchemy"
] |
ZeroMQ: How to prioritise sockets in a .poll() method? | 38,633,359 | <p>Imagine the following code:</p>
<pre><code>import threading, zmq, time
context = zmq.Context()
receivers = []
poller = zmq.Poller()
def thread_fn(number: int):
sender = context.socket(zmq.PUSH)
sender.connect("tcp://localhost:%d" % (6666 + number))
for i in range(10):
sender.send_string("messa... | 4 | 2016-07-28T10:10:37Z | 38,655,009 | <blockquote>
<p>Welcome to the Wild Worlds of (managed)-chaos,</p>
<h2><code>A1:</code> Yes<sup><code>TL;DR</code> check <code>zmq.select()</code> in recent API / python wrapper</sup><br><code>A2:</code> Yes<sub><code>TL;DR</code> a must do part of the rigorous dependable system design</sub></h2>
</blockquote>
... | 2 | 2016-07-29T09:16:52Z | [
"python",
"select",
"zeromq"
] |
pip install askbot error - Command "python setup.py egg_info" failed with error code 1 | 38,633,376 | <p>I want to install askbot app (<a href="http://askbot.org/doc/install.html" rel="nofollow">http://askbot.org/doc/install.html</a>). But I encountered error during installation. </p>
<p>I've did below actions.</p>
<p>1) made virtual environment under ananconda (python 3.5.2 / ubuntu 14.04)</p>
<p>2) installed djang... | 1 | 2016-07-28T10:11:14Z | 38,633,471 | <p><a href="https://pypi.python.org/pypi/askbot/0.7.56" rel="nofollow">Askbot</a> is not compatible with python 3, which changes <code>print</code> from a statement like so:</p>
<pre><code>print `Hello World`
</code></pre>
<p>into a function:</p>
<pre><code>print('Hello world')
</code></pre>
<p>More about this chan... | 2 | 2016-07-28T10:15:20Z | [
"python",
"django",
"askbot"
] |
Unnamed error using Urllib2 and Beautiful soup | 38,633,439 | <p>The output of this code block always returns me the "except". No specific error is shown in my terminal. What am i doing wrong ?
Any help is appreciated!</p>
<pre><code>from bs4 import BeautifulSoup
import csv
import urllib2
# get page source and create a BeautifulSoup object based on it
try:
print("Fetching ... | 0 | 2016-07-28T10:13:50Z | 38,633,567 | <blockquote>
<p>"No specific error is shown in my terminal" </p>
</blockquote>
<p>That's because your <code>except</code> block is shadowing it. Either remove the <code>try/except</code> or print the exception in the <code>except</code> block:</p>
<pre><code>try:
.
.
.
except Exception as ex:
print(... | 0 | 2016-07-28T10:19:47Z | [
"python",
"python-2.7",
"beautifulsoup",
"urllib2",
"scraper"
] |
Unnamed error using Urllib2 and Beautiful soup | 38,633,439 | <p>The output of this code block always returns me the "except". No specific error is shown in my terminal. What am i doing wrong ?
Any help is appreciated!</p>
<pre><code>from bs4 import BeautifulSoup
import csv
import urllib2
# get page source and create a BeautifulSoup object based on it
try:
print("Fetching ... | 0 | 2016-07-28T10:13:50Z | 38,634,351 | <p>You can use requests for getting the data.</p>
<pre><code>from bs4 import BeautifulSoup
import requests
import csv
import urllib2
# get page source and create a BeautifulSoup object based on it
try:
print("Fetching page.")
page = requests.get("http://siph0n.net")
soup = BeautifulSoup(page, 'lxml')
... | 0 | 2016-07-28T10:56:14Z | [
"python",
"python-2.7",
"beautifulsoup",
"urllib2",
"scraper"
] |
if form field is None don't find in model in that field | 38,633,484 | <p>I have model with blank=True fields. In my form I have fields that are optional if in model they are blank=True. So, if in my form I want to make them empty, and then I want to filter my model objects, I don't want to use empty fields to search. Do I need to create other query in this case?</p>
<p>forms.py</p>
<pr... | 0 | 2016-07-28T10:16:01Z | 39,246,339 | <p>The situation is that I forget to do <code>makemigrations</code>. After that all works fine!</p>
| 0 | 2016-08-31T09:53:29Z | [
"python",
"django",
"forms"
] |
Must be called from a blob upload callback request | 38,633,490 | <p>I have implemented this GWT example for blobstore API in Java:
<a href="https://cloud.google.com/appengine/docs/java/blobstore/" rel="nofollow">https://cloud.google.com/appengine/docs/java/blobstore/</a></p>
<p>it works fine when POST is made via the client side form (inside a browser).</p>
<p>However, now I am se... | 0 | 2016-07-28T10:16:20Z | 38,635,109 | <p>That <code>/upload</code> handler is not meant for you to call directly, neither from the browser nor a python application. Instead, your application will need to make two calls: the first to your server to get a temporary URL, then the second to upload to that URL, which will connect with the blobstore directly. Yo... | 1 | 2016-07-28T11:31:53Z | [
"java",
"python",
"google-app-engine",
"gwt"
] |
Train model using queue Tensorflow | 38,633,539 | <p>I designed a neural network in tensorflow for my regression problem by following and adapting the tensorflow tutorial. However, due to the structure of my problem (~300.000 data points and use of the costful FTRLOptimizer), my problem took too long to execute even with my 32 CPUs machine (I don't have GPUs).</p>
<p... | 2 | 2016-07-28T10:18:25Z | 38,715,186 | <p>My mistake, everything worked fine.
I was misled because I estimated at each step of the algorithm my performance on different batches and also because my model was too complicated for a dummy one (I should had something like y=W*x or y=x+b).
Then, when I tried to print in the console, I exucuted several times sess.... | 0 | 2016-08-02T08:17:49Z | [
"python",
"multithreading",
"machine-learning",
"queue",
"tensorflow"
] |
Quick evaluation of many functions at same point in Python | 38,633,584 | <p><strong>Problem</strong>: I need a very fast way in <code>Python3</code> to evaluate many (in the thousands) functions at the same argument. So in a sense, I kind of need the opposite of <code>NumPy's</code> Broadcasting which allows to quickly evaluate <em>one</em> function at <em>multiple</em> points.</p>
<p><str... | 2 | 2016-07-28T10:20:40Z | 38,633,667 | <p>Evaluate them using threading by running them in multiple threads, as long as they do not have resource conflicts.</p>
<p><a href="http://www.tutorialspoint.com/python/python_multithreading.htm" rel="nofollow">http://www.tutorialspoint.com/python/python_multithreading.htm</a></p>
| 0 | 2016-07-28T10:24:43Z | [
"python",
"numpy"
] |
Quick evaluation of many functions at same point in Python | 38,633,584 | <p><strong>Problem</strong>: I need a very fast way in <code>Python3</code> to evaluate many (in the thousands) functions at the same argument. So in a sense, I kind of need the opposite of <code>NumPy's</code> Broadcasting which allows to quickly evaluate <em>one</em> function at <em>multiple</em> points.</p>
<p><str... | 2 | 2016-07-28T10:20:40Z | 38,634,425 | <p>If your functions are IO bound (meaning they spend most of their time waiting for some IO operation to complete), then using multiple threads may be a fair solution.</p>
<p>If your functions are CPU bound (meaning they spend most of their time doing actual computational work), then multiple threads will not help yo... | 3 | 2016-07-28T11:00:15Z | [
"python",
"numpy"
] |
JSON2HTML: Not a valid JSON list python | 38,633,629 | <p>I have a piece of JSON in a file I would like to convert to HTML. I seen online there is a tool called json2html for python which takes care of this for me.</p>
<pre><code>[{
"name": "Steve",
"timestampe": "2016-07-28 10:04:15",
"age": 22
},
{
"name": "Dave",
"timestamp": "2016-07-28 10:04:15",... | 0 | 2016-07-28T10:22:52Z | 38,633,762 | <p>Try setting the value of _json using json.loads(), as in this answer - <a href="http://stackoverflow.com/a/31011255/1772475">Converting json to html table in python</a></p>
| 0 | 2016-07-28T10:29:17Z | [
"python",
"json",
"python-2.7",
"json2html"
] |
JSON2HTML: Not a valid JSON list python | 38,633,629 | <p>I have a piece of JSON in a file I would like to convert to HTML. I seen online there is a tool called json2html for python which takes care of this for me.</p>
<pre><code>[{
"name": "Steve",
"timestampe": "2016-07-28 10:04:15",
"age": 22
},
{
"name": "Dave",
"timestamp": "2016-07-28 10:04:15",... | 0 | 2016-07-28T10:22:52Z | 38,634,133 | <p>parameter <code>json</code> must be a dictionary object and you pass a list.
try this:</p>
<pre><code>_json = { "data" : [{"name": "Steve",
"timestampe": "2016-07-28 10:04:15",
"age": 22
},
{
"name": "Dave",
"timestamp": "2016-07-28 10:04:15",
"age": 34
}]
}
print json2html.convert(json=_json)
... | 1 | 2016-07-28T10:47:15Z | [
"python",
"json",
"python-2.7",
"json2html"
] |
Python Gmail API 'not JSON serializable' | 38,633,781 | <p>I want to send an Email through Python using the Gmail API. Everythingshould be fine, but I still get the error "An error occurred: b'Q29udGVudC1UeXBlOiB0ZXh0L3BsYWluOyBjaGFyc2V0PSJ1cy1hc2NpaSIKTUlNRS..." Here is my code:</p>
<pre><code>import base64
import httplib2
from email.mime.text import MIMEText
from apicl... | 2 | 2016-07-28T10:30:07Z | 39,693,258 | <p>I had this same issue, I assume you are using Python3 I found this on another post and the suggestion was to do the following:</p>
<pre><code>raw = base64.urlsafe_b64encode(message.as_bytes())
raw = raw.decode()
body = {'raw': raw}
</code></pre>
<p>Check out:
<a href="https://github.com/google/google-api-python-cl... | 0 | 2016-09-26T00:44:50Z | [
"python",
"json",
"api",
"email",
"gmail"
] |
How to edit lines of all text files in a directory with python | 38,633,787 | <p>I would like to edit and replace lines of all .txt files in a directory with python for this purpose I am using the following code:</p>
<pre><code>path = '.../dbfiles'
for filename in os.listdir(path):
for i in os.listdir(path):
if i.endswith(".txt"):
with open(i, 'r') as f_in:
for line in ... | 0 | 2016-07-28T10:30:22Z | 38,633,899 | <p>You should add the base path when you use <code>open</code>:</p>
<pre><code> with open(path + '/' + i, 'r') as f_in:
</code></pre>
<p>the same goes for:</p>
<pre><code> open(path + '/' + i, 'w').write(line)
</code></pre>
| 2 | 2016-07-28T10:35:40Z | [
"python",
"text-files",
"ioerror"
] |
How to edit lines of all text files in a directory with python | 38,633,787 | <p>I would like to edit and replace lines of all .txt files in a directory with python for this purpose I am using the following code:</p>
<pre><code>path = '.../dbfiles'
for filename in os.listdir(path):
for i in os.listdir(path):
if i.endswith(".txt"):
with open(i, 'r') as f_in:
for line in ... | 0 | 2016-07-28T10:30:22Z | 38,634,280 | <p>The glob module is useful for getting files with similar endings:</p>
<pre><code>import glob
print glob.glob("*.txt") # Returns a list of all .txt files, with path info
for item in glob.glob("*.txt"):
temp = [] # Might be useful to use a temp list before overwriting your file
with open(item, "r") as f:
... | 1 | 2016-07-28T10:53:24Z | [
"python",
"text-files",
"ioerror"
] |
Python Request: Post Images on Facebook using Multipart/form-data | 38,633,791 | <p>I'm using the facebook API to post images on a page, I can post image from web using this :</p>
<pre><code>import requests
data = 'url=' + url + '&caption=' + caption + '&access_token=' + token
status = requests.post('https://graph.facebook.com/v2.7/PAGE_ID/photos',
data=data)
print ... | 0 | 2016-07-28T10:30:31Z | 38,633,884 | <p>Pass in <code>data</code> as a <em>dictionary</em>:</p>
<pre><code>data = {
'caption', caption,
'access_token', token
}
files = {
'file': open(IMG_PATH, 'rb')
}
status = requests.post(
'https://graph.facebook.com/v2.7/PAGE_ID/photos',
data=data, files=files)
</code></pre>
<p><code>requests</co... | 1 | 2016-07-28T10:35:09Z | [
"python",
"facebook",
"python-requests",
"multipartform-data"
] |
How can I open up webcam and process images with docker and OpenCV? | 38,633,799 | <p>I have a python script that uses OpenCV and when somebody runs my script I want process the image from their webcam and give back a result. How can I make it?</p>
<p>This is how I tried:</p>
<p>My simple test python script:</p>
<pre><code>import cv2
cap = cv2.VideoCapture(0)
while True:
ret, frame = cap.read... | 0 | 2016-07-28T10:30:46Z | 38,634,175 | <p>You have to show the frame. Using <code>cv2.imshow('Preview', frame)</code>. And outside the <code>while loop</code> you have to release the camera, so you should type <code>cap.release()</code>. </p>
| 0 | 2016-07-28T10:49:06Z | [
"python",
"opencv",
"docker",
"dockerfile"
] |
How to save data from the data stream while not blocking the stream? (PyQt5 signal emit() performance) | 38,633,914 | <p>I'm developing a PyQt5 application.
In my application, it has a data stream, and its speed is about 5~20 data/sec.</p>
<p>Every time data arrives, the following <code>onData()</code> method of class <code>Analyzer</code> is called. (Following code is simplified code of my app)</p>
<pre><code>class Analyzer():
... | 1 | 2016-07-28T10:36:08Z | 38,635,201 | <p>something like this might work</p>
<pre><code>class PickleDumpingThread(QThread):
def __init__(self, data):
super().__init__()
self.data = data
def run(self):
pickle.dump(self.data["deque"], open(file, 'wb'))
self.emit(QtCore.SIGNAL('threadFinished(int)'), self.currentThreadId())
... | 0 | 2016-07-28T11:35:58Z | [
"python",
"pyqt",
"python-multithreading",
"pyqt5",
"qthread"
] |
How to save data from the data stream while not blocking the stream? (PyQt5 signal emit() performance) | 38,633,914 | <p>I'm developing a PyQt5 application.
In my application, it has a data stream, and its speed is about 5~20 data/sec.</p>
<p>Every time data arrives, the following <code>onData()</code> method of class <code>Analyzer</code> is called. (Following code is simplified code of my app)</p>
<pre><code>class Analyzer():
... | 1 | 2016-07-28T10:36:08Z | 38,649,894 | <p>The problem was that I was not using <code>QThread</code> properly.</p>
<p>The result of printing</p>
<pre><code>print("(Current Thread)", QThread.currentThread(),"\n")
print("(Current Thread)", int(QThread.currentThreadId()),"\n")
</code></pre>
<p>noticed me that the <code>PickleDumpingThread</code> I created wa... | 0 | 2016-07-29T03:03:30Z | [
"python",
"pyqt",
"python-multithreading",
"pyqt5",
"qthread"
] |
How to save data from the data stream while not blocking the stream? (PyQt5 signal emit() performance) | 38,633,914 | <p>I'm developing a PyQt5 application.
In my application, it has a data stream, and its speed is about 5~20 data/sec.</p>
<p>Every time data arrives, the following <code>onData()</code> method of class <code>Analyzer</code> is called. (Following code is simplified code of my app)</p>
<pre><code>class Analyzer():
... | 1 | 2016-07-28T10:36:08Z | 39,421,279 | <p>When the GIL is a problem the workaround is to subdivide the task into chunks in such a way that you can refresh the GUI between chunks. </p>
<p>E.g say you have one huge list of size S to dump, then you could try defining a class that derives from list and overrides getstate to return N subpickle objects, each one... | 0 | 2016-09-10T00:13:39Z | [
"python",
"pyqt",
"python-multithreading",
"pyqt5",
"qthread"
] |
Django URL error when using forms | 38,633,980 | <p>I am fairly new to Django and I am totally stuck on what is causing this error. I have done lots of searching but to no avail! Any help would be super appreciated.</p>
<p>The actual form works fine but when I try and submit the input data I get the error:</p>
<pre><code>Using the URLconf defined in mysite.urls, Dj... | 0 | 2016-07-28T10:39:14Z | 38,634,126 | <p>the form "action" attribute is wrong... seeing your urls configuration you dont have a <code>/spirit3/add_patient/</code> url, I think It is <code>/add_patient/</code></p>
<p>or you could just use a form tag without an "action" it will post to the current page:</p>
<pre><code><form role="form" method="post">... | 2 | 2016-07-28T10:46:52Z | [
"python",
"django"
] |
Django URL error when using forms | 38,633,980 | <p>I am fairly new to Django and I am totally stuck on what is causing this error. I have done lots of searching but to no avail! Any help would be super appreciated.</p>
<p>The actual form works fine but when I try and submit the input data I get the error:</p>
<pre><code>Using the URLconf defined in mysite.urls, Dj... | 0 | 2016-07-28T10:39:14Z | 38,635,003 | <p>As pleasedontbelong mentionned, there's indeed no url matching "/spirit3/add_patient/" in your current url config. What you have in tour root urlconf is:</p>
<pre><code>urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'', include('spirit3.urls')),
]
</code></pre>
<p>This means that urls with path sta... | 0 | 2016-07-28T11:26:22Z | [
"python",
"django"
] |
Tkinter Show webcam view in second window | 38,633,995 | <p>I am using a webcam view and performing analysis on the images taken in. I wish to introduce a functionality where a window can be summoned and the user can look at the webcam view in a new window, should they desire. However my attempt causes buttons in my main window to swap over to the instance when I open up the... | 1 | 2016-07-28T10:40:06Z | 38,634,447 | <p>Fixed! I was getting confused because of <code>self.lmain</code>. Here is the working code:</p>
<pre><code>import Tkinter as tk
import cv2
from PIL import Image, ImageTk
class CamView():
def __init__(self, parent):
self.parent = parent
self.window = tk.Toplevel(parent)
self.lmain2 = ... | 1 | 2016-07-28T11:01:08Z | [
"python",
"opencv",
"tkinter"
] |
pandas pivot_table apply aggfunc last instance | 38,634,120 | <p>I have made a pivot table with various columns and have applied aggfunc like np.sum and first and count. I want last instance of corresponding value of a column from a dataframe. Is there any function that could serve this purpose?</p>
| 1 | 2016-07-28T10:46:37Z | 38,634,152 | <p>I think you can use </p>
<pre><code>aggfunc='last'
</code></pre>
<p>Sample:</p>
<pre><code>df = pd.DataFrame({ 'Age':[35, 37, 40, 29, 31, 26, 28],
'City':['B', 'Ch', 'LA', 'Ch', 'B', 'B', 'Ch'],
'Position':['M','M','M','P', 'P','M','M']})
print (df)
Age City Position
0 3... | 1 | 2016-07-28T10:48:09Z | [
"python",
"pandas"
] |
Django unit test on custom model manager method | 38,634,138 | <p>I am pretty new in python and django.</p>
<p>I have model with custom model manager with a method ,where i am raising
<code>ValidationError</code> on some exceptions.now i want to test this custom manager method.but don't know how to catch <code>ValidationError</code> or anyother error in terms of testing django m... | 0 | 2016-07-28T10:47:25Z | 38,634,660 | <p>use <a href="https://docs.python.org/2.7/library/unittest.html#unittest.TestCase.assertRaises" rel="nofollow">assertRaises</a></p>
<pre><code>with self.assertRaises(ValidationError):
issues = Issues.objects.custom_method(field1='wrong field')
</code></pre>
| 1 | 2016-07-28T11:10:24Z | [
"python",
"django",
"unit-testing"
] |
Django unit test on custom model manager method | 38,634,138 | <p>I am pretty new in python and django.</p>
<p>I have model with custom model manager with a method ,where i am raising
<code>ValidationError</code> on some exceptions.now i want to test this custom manager method.but don't know how to catch <code>ValidationError</code> or anyother error in terms of testing django m... | 0 | 2016-07-28T10:47:25Z | 38,634,681 | <p>You want <a href="https://docs.python.org/2.7/library/unittest.html#unittest.TestCase.assertRaises" rel="nofollow">`assertRaises'</a>:</p>
<pre><code>def test_sample_model(self):
with self.assertRaises(ValidationError):
issues = Issues.objects.custom_method(field1='wrong field')
</code></pre>
| 1 | 2016-07-28T11:11:17Z | [
"python",
"django",
"unit-testing"
] |
Pandas: create dataframe using value_counts | 38,634,235 | <p>I have data</p>
<pre><code>age
32
16
39
39
23
36
29
26
43
34
35
50
29
29
31
42
53
</code></pre>
<p>I need to get smth like this
<a href="http://i.stack.imgur.com/3Trd2.png" rel="nofollow"><img src="http://i.stack.imgur.com/3Trd2.png" alt="image"></a>
I can get </p>
<p><code>df.age.value_counts()</code>
and </p>
... | -1 | 2016-07-28T10:51:04Z | 38,634,767 | <p>You can use <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.cut.html" rel="nofollow"><code>cut</code></a> with <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.core.groupby.GroupBy.aggregate.html" rel="nofollow"><code>agg</code></a>:</p>
<pre><code>#helper df with min and ... | 1 | 2016-07-28T11:15:18Z | [
"python",
"pandas"
] |
PySpark Data Frame - give an ID to sequence of same values | 38,634,248 | <p>I have a dataset in a pyspark job that looks a bit like this:</p>
<pre><code>frame_id direction_change
1 False
2 False
3 False
4 True
5 False
</code></pre>
<p>I want to add a "track" counter to each row so that all the frames between direction change... | 0 | 2016-07-28T10:52:02Z | 38,635,139 | <p>Long story short there is no efficient way to do in PySpark with <code>DataFrames</code> alone. One could be tempted to use window functions like this:</p>
<pre><code>from pyspark.sql.functions import col, sum as sum_
from pyspark.sql.window import Window
w = Window().orderBy("frame_id")
df.withColumn("change", 1... | 2 | 2016-07-28T11:33:13Z | [
"python",
"apache-spark",
"pyspark",
"spark-dataframe"
] |
cx_freeze build doesn't allow program quitting | 38,634,265 | <p>I've tried with <code>exit(0)</code> in tkinter, <code>pygame.quit()</code> in pygme and other things in my cx_freeze build, but an error pops up when using <code>pygame.quit()</code> (which stops the whole program which is not intentional) and when I use <code>exit(0)</code> in tkinter it won't allow me to quit. It... | 1 | 2016-07-28T10:52:52Z | 38,636,660 | <p>It is odd, it should be correct but you can try this...</p>
<pre><code>import sys
print("")
</code></pre>
| 0 | 2016-07-28T12:40:42Z | [
"python",
"cx-freeze"
] |
XML to pandas: Export to csv and make the childrens in same row | 38,634,290 | <p>I am in the "munging stage", trying to convert a XML file to csv with pandas. I finally did with the code bellow: </p>
<pre><code>for element in etree.iterparse(path):
data.append({element.tag: element.text})
df = pd.DataFrame(data,columns=['NOME_DISTRITO', 'NR_CPE', 'MARCA_EQUIPAMENTO',
... | 1 | 2016-07-28T10:53:40Z | 38,649,358 | <p>Consider running conditionals in the <code>iterparse()</code>. Because <code><NOME_DISTRITO></code> and <code><NR_CPE></code> lie outside the repeated <code><LEITURA></code> elements, save their values in scalars to be added to the <code>inner{}</code> dictionary for appending to dataframe:</p>
<p... | 0 | 2016-07-29T01:57:56Z | [
"python",
"excel",
"pandas"
] |
Empty Div return with Xpath or Css Selector Using Scrapy | 38,634,495 | <p>I'm using Scrapy to crawl a web page which contains a specific article.</p>
<p>I'm trying to get the informations stored inside the div with the class "return". The big problem that the div return always empty when i use Scrapy Xpath or Css selectors.</p>
<p><strong>The Div that i'm trying to extract:</strong> </... | 0 | 2016-07-28T11:02:45Z | 38,648,774 | <p>The <a href="http://www.alinea.fr/orca-canape-angle-gauche-droit-convertible-gris.html" rel="nofollow">page</a> you visited has no content for that <code>div</code> at all. So you are supposed to get what you got.</p>
<p>If you change to other pages, for example <a href="http://www.alinea.fr/orca-canape-angle-droit... | 0 | 2016-07-29T00:33:41Z | [
"python",
"web-scraping",
"scrapy"
] |
Check GitHub credentials validity | 38,634,656 | <p>I am trying to verify GitHub credentials with Python.</p>
<p>I have tried this:</p>
<pre><code>import urllib2, base64
username = "test@example.com"
password = "password"
request = urllib2.Request("https://github.com/")
base64string = base64.encodestring('%s:%s' % (username, password)).replace('\n', '')
request.a... | 1 | 2016-07-28T11:10:17Z | 38,635,980 | <p>I should've been using <code>https://api.github.com/user</code> instead of <code>https://github.com/</code>.</p>
<p>Nevertheless, I will use <code>requests</code> 3rd party library, which makes this code concise:</p>
<pre><code>import requests
print requests.get(
'https://api.github.com/user',
auth=('usern... | 0 | 2016-07-28T12:10:56Z | [
"python",
"github",
"urllib2"
] |
beautifulsoup installation in pyCharm with two versions of python installed | 38,634,685 | <p>I use PyCharm to write Python, at first I configurated PyCharm with Python 2.7.12, and I installed the Beautiful Soup package under the 2.7.12 environment. </p>
<p>However, I now have installed python 3.5.2 in PyCharm and I want to use Beautiful Soup in PyCharm with 3.5.2, but I can't import bs4 because the interpr... | 0 | 2016-07-28T11:11:32Z | 38,634,744 | <p>To be sure to install your package for the right version of python, you can use pip as a module :</p>
<pre><code>python3.5 -m pip install [package]
</code></pre>
<p>So for bs4 :</p>
<pre><code>python3.5 -m pip install beautifulsoup4
</code></pre>
| 0 | 2016-07-28T11:14:04Z | [
"python",
"pycharm"
] |
Catch an error from command line Python | 38,634,746 | <p>I need to catch an error from command line without print error message on the screen. When this occurs I need to give another command to run.</p>
<p>This is what I do now:</p>
<pre><code>hyst_cmd = "si viewhistory ..."
process = subprocess.Popen(hyst_cmd, stdout=subprocess.PIPE)
hyst = process.stdout.read().splitl... | 1 | 2016-07-28T11:14:07Z | 38,634,986 | <p>According to the official document, the most common exception for Popen in subprocess is <strong>OSError</strong>.</p>
<p>To catch the error, you can simply try the following approach:</p>
<pre><code>hyst_cmd = "si viewhistory ..."
try:
process = subprocess.Popen(hyst_cmd, stdout=subprocess.PIPE)
hyst = p... | 0 | 2016-07-28T11:25:40Z | [
"python",
"command"
] |
Extracting parameters from astropy.modeling Gaussian2D | 38,634,782 | <p>I have managed to use <code>astropy.modeling</code> to model a 2D Gaussian over my image and the parameters it has produced to fit the image seem reasonable. However, I need to run the 2D Gaussian over thousands of images because we are interested in examining the mean x and y of the model and also the x and y stand... | 1 | 2016-07-28T11:15:52Z | 38,635,135 | <p>The models have attributes you can access:</p>
<pre><code>from astropy.modeling import models
g2d = models.Gaussian2D(1,2,3,4,5)
g2d.amplitude.value # 1.0
g2d.x_mean.value # 2.0
g2d.y_mean.value # 3.0
g2d.x_stddev.value # 4.0
g2d.y_stddev.value # 5.0
</code></pre>
<p>You need to extract these values a... | 1 | 2016-07-28T11:33:08Z | [
"python",
"modeling",
"astropy"
] |
Python Regular Expression for stopping in between | 38,634,788 | <p>This is my string:</p>
<blockquote>
<p>age: adult/child gender: male/female <strong>age range: 3 - 5 years/5 - 8 years/8 - 12 yrs/12 years and up</strong> product type: costume character: animals & insects material: polyester theme: animal age start: 3 years age end: adult features: -face is seen thr... | 0 | 2016-07-28T11:16:01Z | 38,634,959 | <p>You could try this pattern using <code>re.search()</code>:</p>
<pre><code>import re
string = 'age: adult/child gender: male/female age range: 3 - 5 years/5 - 8 years/8 - 12 years/12 years and up product type: costume character: animals &amp; insects material: polyester theme: animal age start: 3 years ... | 0 | 2016-07-28T11:24:21Z | [
"python",
"regex"
] |
Python Regular Expression for stopping in between | 38,634,788 | <p>This is my string:</p>
<blockquote>
<p>age: adult/child gender: male/female <strong>age range: 3 - 5 years/5 - 8 years/8 - 12 yrs/12 years and up</strong> product type: costume character: animals & insects material: polyester theme: animal age start: 3 years age end: adult features: -face is seen thr... | 0 | 2016-07-28T11:16:01Z | 38,634,993 | <p>You can use the following:</p>
<pre><code>\bage range:\s*(?:\d+\s*-\s*\d+\s*y(?:ea)?rs/)+\d+\s*y(?:ea)?rs and up\b
</code></pre>
<p>See <a href="https://regex101.com/r/eK1nM9/1" rel="nofollow">Demo</a></p>
| 0 | 2016-07-28T11:26:02Z | [
"python",
"regex"
] |
Python Regular Expression for stopping in between | 38,634,788 | <p>This is my string:</p>
<blockquote>
<p>age: adult/child gender: male/female <strong>age range: 3 - 5 years/5 - 8 years/8 - 12 yrs/12 years and up</strong> product type: costume character: animals & insects material: polyester theme: animal age start: 3 years age end: adult features: -face is seen thr... | 0 | 2016-07-28T11:16:01Z | 38,635,150 | <p>If "product type" is always following your desired string, then you can use <a href="http://www.regular-expressions.info/lookaround.html" rel="nofollow">lookahead assertion</a>:</p>
<pre><code>>>> r = re.search(r'(age range:.*?)(?= product type)', s)
>>> r.group(1)
'age range: 3 - 5 years/5 - 8 ye... | 0 | 2016-07-28T11:33:53Z | [
"python",
"regex"
] |
Failing to import itertools in Python 3.5.2 | 38,634,810 | <p>I am new to Python. I am trying to import izip_longest from itertools. But I am not able to find the import "itertools" in the preferences in Python interpreter. I am using Python 3.5.2. It gives me the below error-</p>
<pre><code>from itertools import izip_longest
ImportError: cannot import name 'izip_longest'
</c... | 0 | 2016-07-28T11:16:52Z | 38,634,822 | <p><code>izip_longest</code> was <em>renamed</em> to <a href="https://docs.python.org/3/library/itertools.html#itertools.zip_longest" rel="nofollow"><code>zip_longest</code></a> in Python 3 (note, no <code>i</code> at the start), import that instead:</p>
<pre><code>from itertools import zip_longest
</code></pre>
<p>a... | 1 | 2016-07-28T11:17:37Z | [
"python",
"python-2.7",
"pycharm",
"python-3.5",
"itertools"
] |
Use Flask to convert a Pandas dataframe to CSV and serve a download | 38,634,862 | <p>I have a Pandas dataframe in my Flask app that I want to return as a CSV file.</p>
<pre><code>return Response(df.to_csv())
</code></pre>
<p>The problem is that the output appears in the browser instead of downloading as a separate file. How can I change that?</p>
<p>I tried the following as well but it just gave ... | 2 | 2016-07-28T11:19:45Z | 38,635,222 | <p>Set the <code>Content-Disposition</code> to tell the browser to download the file instead of showing its content on the page.</p>
<pre><code>resp = make_response(df.to_csv())
resp.headers["Content-Disposition"] = "attachment; filename=export.csv"
resp.headers["Content-Type"] = "text/csv"
return resp
</code></pre>
| 3 | 2016-07-28T11:37:01Z | [
"python",
"pandas",
"flask"
] |
Check if programm runs in Debug mode | 38,634,988 | <p>I use the PyCharm IDE for Python programming.</p>
<p>Is there a possibility to check, whether I'm in debugging mode or not when I run my proframm?</p>
<p>I use pyplot as plt and want a Figure only to be shown if I debug my programm. Yes, I could have a global boolean <em>debug</em> which is set by myself, but I lo... | 1 | 2016-07-28T11:25:45Z | 38,636,826 | <p>It is better not to use other programming platforms....
use this instead (If you like!):-
<a href="https://www.python.org/downloads/windows/(If" rel="nofollow">https://www.python.org/downloads/windows/(If</a> you are using windows)
<a href="https://www.python.org/downloads/mac-osx/(If" rel="nofollow">https://www.pyt... | 0 | 2016-07-28T12:47:23Z | [
"python",
"python-2.7",
"debugging",
"pycharm"
] |
Check if programm runs in Debug mode | 38,634,988 | <p>I use the PyCharm IDE for Python programming.</p>
<p>Is there a possibility to check, whether I'm in debugging mode or not when I run my proframm?</p>
<p>I use pyplot as plt and want a Figure only to be shown if I debug my programm. Yes, I could have a global boolean <em>debug</em> which is set by myself, but I lo... | 1 | 2016-07-28T11:25:45Z | 38,637,774 | <p>According to the documentation, <code>settrace</code> / <code>gettrace</code> functions could be used in order to implement Python debugger:</p>
<blockquote>
<pre><code>sys.settrace(tracefunc)
</code></pre>
<p>Set the systemâs trace function, which allows
you to implement a Python source code debugger in ... | 1 | 2016-07-28T13:25:05Z | [
"python",
"python-2.7",
"debugging",
"pycharm"
] |
Finding the optimal combination of algorithms in an sklearn machine learning toolchain | 38,635,075 | <p>In sklearn it is possible to create a pipeline to optimize the complete tool chain of a machine learning setup, as shown in the following sample:</p>
<pre><code>from sklearn.pipeline import Pipeline
from sklearn.svm import SVC
from sklearn.decomposition import PCA
estimators = [('reduce_dim', PCA()), ('svm', SVC())... | 0 | 2016-07-28T11:29:35Z | 38,636,748 | <p>A pipeline is something sequential:</p>
<pre><code>Data -> Process input with algorithm A -> Process input with algorithm B -> ...
</code></pre>
<p>Something parallel, and I also think what you're looking for is called an "Ensemble". For example, in a classification context you can train several SVMs but ... | 1 | 2016-07-28T12:44:21Z | [
"python",
"machine-learning",
"scikit-learn"
] |
Finding the optimal combination of algorithms in an sklearn machine learning toolchain | 38,635,075 | <p>In sklearn it is possible to create a pipeline to optimize the complete tool chain of a machine learning setup, as shown in the following sample:</p>
<pre><code>from sklearn.pipeline import Pipeline
from sklearn.svm import SVC
from sklearn.decomposition import PCA
estimators = [('reduce_dim', PCA()), ('svm', SVC())... | 0 | 2016-07-28T11:29:35Z | 38,636,833 | <p>The pipeline is not a parallel process. It's rather sequential (Pipe<strong>line</strong>) - see <a href="http://scikit-learn.org/stable/modules/generated/sklearn.pipeline.Pipeline.html" rel="nofollow">here</a> the documentation, mentionning : </p>
<blockquote>
<p>Sequentially apply a list of transforms and a fin... | 1 | 2016-07-28T12:47:34Z | [
"python",
"machine-learning",
"scikit-learn"
] |
Define range for index for lists in for loops | 38,635,088 | <p>I'm a complete beginner in <em>Python</em>. I was coding the "minimum difference between array elements" problem. The idea was to sort the array and then find the difference between adjacent elements, to find the one with the minimum difference. </p>
<p>However, I wonder how to define the range for the index of the... | 3 | 2016-07-28T11:30:29Z | 38,635,124 | <p>You can pass a slice of <code>a</code> with the specified start and stop indices to <code>enumerate</code>:</p>
<pre><code>for i, x in enumerate(a[:size-1]):
...
</code></pre>
<p><code>i</code> will run from <code>0</code> to <code>size-2</code></p>
<hr>
<p>On a side note, comments in Python start with <code... | 3 | 2016-07-28T11:32:51Z | [
"python",
"arrays"
] |
Define range for index for lists in for loops | 38,635,088 | <p>I'm a complete beginner in <em>Python</em>. I was coding the "minimum difference between array elements" problem. The idea was to sort the array and then find the difference between adjacent elements, to find the one with the minimum difference. </p>
<p>However, I wonder how to define the range for the index of the... | 3 | 2016-07-28T11:30:29Z | 38,635,288 | <p>If you really want to use manual indexing, then dont use <code>enumerate()</code> and just create a <code>range()</code> (or <code>xrange()</code> if Python 2.x) of the right size, ie:</p>
<pre><code>for i in xrange(len(a) - 2):
# code here
</code></pre>
<p>Now you don't have to manually take care of indexes at... | 5 | 2016-07-28T11:39:49Z | [
"python",
"arrays"
] |
Define range for index for lists in for loops | 38,635,088 | <p>I'm a complete beginner in <em>Python</em>. I was coding the "minimum difference between array elements" problem. The idea was to sort the array and then find the difference between adjacent elements, to find the one with the minimum difference. </p>
<p>However, I wonder how to define the range for the index of the... | 3 | 2016-07-28T11:30:29Z | 38,635,291 | <p>You could just <a class='doc-link' href="http://stackoverflow.com/documentation/python/289/indexing-and-slicing#t=201607281137123998325">slice</a> <code>a</code>. Then <code>enumerate(a[:-1])</code> will ignore one element at the end of <code>a</code>.</p>
<p>You don't even need to compute <code>size</code> anymore... | 4 | 2016-07-28T11:39:50Z | [
"python",
"arrays"
] |
How to create Json Web Token to User login in Django Rest Framework? | 38,635,092 | <p>I want to add JWT to my User Login API for authenticate. What should I do according to this codes? I create a token by manuel. But it must change. How can I integrated? Thank you.</p>
<p><strong>Serializers</strong></p>
<pre><code>class UserLoginSerializer(ModelSerializer):
token = CharField(allow_blank=True, read... | 0 | 2016-07-28T11:30:48Z | 38,640,350 | <p>You can try doing something like this:</p>
<p>First, install <code>pip install djangorestframework-jwt</code>.</p>
<p><strong>settings.py:</strong></p>
<pre><code>REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': (
'rest_framework.permissions.IsAuthenticated',
),
'DEFAULT_AUTHENTICATION_CLASSES... | 0 | 2016-07-28T15:12:40Z | [
"python",
"django",
"django-rest-framework"
] |
How to create Json Web Token to User login in Django Rest Framework? | 38,635,092 | <p>I want to add JWT to my User Login API for authenticate. What should I do according to this codes? I create a token by manuel. But it must change. How can I integrated? Thank you.</p>
<p><strong>Serializers</strong></p>
<pre><code>class UserLoginSerializer(ModelSerializer):
token = CharField(allow_blank=True, read... | 0 | 2016-07-28T11:30:48Z | 38,735,964 | <p>Automatically, you can use 'rest_framework_jwt.views.obtain_jwt_token' for User Login. It create a token. And then, you need to go RestrictedView and use to token for authentication. Basicly, that's all.</p>
| 0 | 2016-08-03T06:29:04Z | [
"python",
"django",
"django-rest-framework"
] |
Exception when training data in Predictionio | 38,635,166 | <p>I am trying to Deploy an Recommendation Engine as mentioned in <a href="http://docs.prediction.io/templates/recommendation/quickstart/" rel="nofollow">quick start guide</a>.
I completed the steps up to build the engine. Now I want to train the Recommendation Engine. I did as mentioned in quick start guide. (execute ... | 5 | 2016-07-28T11:34:18Z | 38,655,950 | <p>Your error says <code>java.lang.StackOverflowError</code> for that you can reduce the <code>numIterations parameter</code> in <code>engine.json</code> file. Refer <a href="http://stackoverflow.com/questions/34133172/predictionio-engine">this</a>.</p>
| 1 | 2016-07-29T10:01:14Z | [
"python",
"apache-spark",
"recommendation-engine",
"data-science",
"predictionio"
] |
TensorFlow: Implementing Spearman Distance as the Objective Function | 38,635,182 | <p>In order to make my issue reproducible, I have generated the following <code>.csv</code> file using iris flower data set (10 arbitrary rows, all columns standard normalized) and a minimal neural network model (which predicts petal width using sepal length, sepal width and petal length) by modifying an MNIST example ... | 0 | 2016-07-28T02:56:13Z | 38,636,465 | <p>Your error comes from the fact that <code>tf.py_func</code> has no gradient defined. </p>
<p>Anyway, as @user20160 said in the comments, no gradient even exists for the operation <code>rank</code>, so this is not a loss on which you can train your algorithm directly.</p>
| 2 | 2016-07-28T12:31:37Z | [
"python",
"ranking",
"tensorflow"
] |
Inserting elements from array to the string | 38,635,199 | <p>I have two variables:</p>
<pre><code>query = "String: {} Number: {}"
param = ['text', 1]
</code></pre>
<p>I need to merge these two variables and keep the quote marks in case of string and numbers without quote marks.</p>
<p>result= <code>"String: 'text' Number: 1"</code></p>
<p>I tried to use query.format(param... | 2 | 2016-07-28T11:35:53Z | 38,635,274 | <p>You can use <code>repr</code> on each item in <code>param</code> within a generator expression, then use <code>format</code> to add them to your string.</p>
<pre><code>>>> query = "String: {} Number: {}"
>>> param = ['text', 1]
>>> query.format(*(repr(i) for i in param))
"String: 'text' N... | 7 | 2016-07-28T11:39:10Z | [
"python",
"arrays",
"string"
] |
Matching a number within a number in a python List | 38,635,408 | <p>A queryset returned a list:</p>
<pre><code>list1=[2856,28564,1245,232856]
</code></pre>
<p>When I try to find if a number exists in the above list by writing:</p>
<pre><code>num=2856
if num in list1:
</code></pre>
<p>it matches 2856, 25564, and 232856. How can I make sure it matches only 2856 and not the rest?</... | -2 | 2016-07-28T11:45:14Z | 38,635,491 | <p>It does not behave like you suggest. In fact your current syntax gives your desired output.</p>
<pre><code>>>> list1=[2856,28564,1245,232856]
>>> num=2856
>>> if num in list1:
... print(num)
...
2856
>>>
</code></pre>
<p>This is the behavior you are suggesting. Note how it ... | 3 | 2016-07-28T11:49:04Z | [
"python"
] |
Matching a number within a number in a python List | 38,635,408 | <p>A queryset returned a list:</p>
<pre><code>list1=[2856,28564,1245,232856]
</code></pre>
<p>When I try to find if a number exists in the above list by writing:</p>
<pre><code>num=2856
if num in list1:
</code></pre>
<p>it matches 2856, 25564, and 232856. How can I make sure it matches only 2856 and not the rest?</... | -2 | 2016-07-28T11:45:14Z | 38,635,530 | <p>You are checking if the value of num is inside of the list. Therefore, the expression </p>
<pre><code>num in list1
</code></pre>
<p>is True if num is equal to any item of list1. To make it only True when num is equal to the first (here: 2856) you have to write:</p>
<pre><code>num == list1[0]
</code></pre>
| -1 | 2016-07-28T11:50:54Z | [
"python"
] |
Matching a number within a number in a python List | 38,635,408 | <p>A queryset returned a list:</p>
<pre><code>list1=[2856,28564,1245,232856]
</code></pre>
<p>When I try to find if a number exists in the above list by writing:</p>
<pre><code>num=2856
if num in list1:
</code></pre>
<p>it matches 2856, 25564, and 232856. How can I make sure it matches only 2856 and not the rest?</... | -2 | 2016-07-28T11:45:14Z | 38,635,570 | <p>For your specific example:</p>
<p>[x for x in list1 if x==2856][0]</p>
<p>returns a single element list containing only the value you want and you access its only position to get the element.</p>
| 0 | 2016-07-28T11:52:41Z | [
"python"
] |
Searching in Google with Python | 38,635,419 | <p>I want to search a text in Google using a python script and return the name, description and URL for each result. I'm currently using this code:</p>
<pre><code>from google import search
ip=raw_input("What would you like to search for? ")
for url in search(ip, stop=20):
print(url)
</code></pre>
<p>This retur... | -3 | 2016-07-28T11:45:37Z | 38,635,722 | <p>I assume you are using <a href="https://breakingcode.wordpress.com/2010/06/29/google-search-python/" rel="nofollow">this library by Mario Vilas</a> because of the <code>stop=20</code> argument which appears in his code. It seems like this library is not able to return anything but the URLs, making it horribly undeve... | 3 | 2016-07-28T11:58:57Z | [
"python",
"python-2.7",
"google-search"
] |
Searching in Google with Python | 38,635,419 | <p>I want to search a text in Google using a python script and return the name, description and URL for each result. I'm currently using this code:</p>
<pre><code>from google import search
ip=raw_input("What would you like to search for? ")
for url in search(ip, stop=20):
print(url)
</code></pre>
<p>This retur... | -3 | 2016-07-28T11:45:37Z | 38,639,228 | <p>Not exatcly what I was looking for, but I found myself a nice solution for now (I might edit this if I will able to make this better). I combined searching in Google like I did (returning only URL) and the Beautiful Soup package for parsing HTML pages:</p>
<pre><code>from google import search
import urllib
from bs4... | 0 | 2016-07-28T14:23:37Z | [
"python",
"python-2.7",
"google-search"
] |
Matrix of polynomial elements | 38,635,580 | <p>I am using NumPy for operations on matrices, to calculate matrixA * matrixB, the trace of the matrix, etc... And elements of my matrices are integers. But what I want to know is if there is possibility to work with matrices of polynomials. So for instance I can work with matrices such as <code>[x,y;a,b]</code>, not ... | 4 | 2016-07-28T11:53:01Z | 38,635,743 | <p>One option is to use the <a href="http://docs.sympy.org/dev/modules/matrices/matrices.html" rel="nofollow">SymPy Matrices module</a>. SymPy is a symbolic mathematics library for Python which is quite interoperable with NumPy, especially for simple matrix manipulation tasks such as this. </p>
<pre><code>>>>... | 2 | 2016-07-28T11:59:42Z | [
"python",
"numpy",
"matrix",
"sympy"
] |
Why I output csv file with a blank row | 38,635,669 | <p>This is my code:</p>
<pre><code>with open("testoffset.csv") as handler:
f = open('output_file2.csv', 'w+')
f.write('X,Y,value\n')
for r,l in enumerate(handler):
for col, e in enumerate(l.split(',')):
f.write('{0},{1},{2}\n'.format(r+1,col+1,e))
</code></pre>
<p>This outputs</p>
<pr... | 0 | 2016-07-28T11:56:36Z | 38,635,741 | <p>Your lines from the <code>handler</code> file have a newline at the end, which you write to your output file.</p>
<p>Remove that newline by stripping before you split the line:</p>
<pre><code>for col, e in enumerate(l.rstrip('\n').split(',')):
</code></pre>
<p>You may want to avoid re-inventing the CSV reading an... | 2 | 2016-07-28T11:59:34Z | [
"python",
"python-2.7",
"csv"
] |
Why I output csv file with a blank row | 38,635,669 | <p>This is my code:</p>
<pre><code>with open("testoffset.csv") as handler:
f = open('output_file2.csv', 'w+')
f.write('X,Y,value\n')
for r,l in enumerate(handler):
for col, e in enumerate(l.split(',')):
f.write('{0},{1},{2}\n'.format(r+1,col+1,e))
</code></pre>
<p>This outputs</p>
<pr... | 0 | 2016-07-28T11:56:36Z | 38,635,885 | <pre><code>with open("testoffset.csv",'wb') as handler:
</code></pre>
<p>Replace first line of your code. </p>
| 0 | 2016-07-28T12:05:52Z | [
"python",
"python-2.7",
"csv"
] |
Why I output csv file with a blank row | 38,635,669 | <p>This is my code:</p>
<pre><code>with open("testoffset.csv") as handler:
f = open('output_file2.csv', 'w+')
f.write('X,Y,value\n')
for r,l in enumerate(handler):
for col, e in enumerate(l.split(',')):
f.write('{0},{1},{2}\n'.format(r+1,col+1,e))
</code></pre>
<p>This outputs</p>
<pr... | 0 | 2016-07-28T11:56:36Z | 38,635,947 | <p>Just skip empty lines.</p>
<pre><code>...
for r,l in enumerate(handler):
if not l.startswith('\n'): #or if l[0] != '\n':
for col, e in enumerate(l.split(',')):
...
</code></pre>
| 1 | 2016-07-28T12:08:49Z | [
"python",
"python-2.7",
"csv"
] |
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