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 |
|---|---|---|---|---|---|---|---|---|---|
Flask, MySQL and SQLAlchemy quering ID error | 39,186,521 | <p>I get a weird error when I try to query an item by id. I have tried all suggestion I have found and only when doing raw query I get a proper result.</p>
<p>Part of the Traceback:</p>
<pre><code> File "C:\Users\pgsid\Envs\xo\lib\site-packages\flask\app.py", line 1988, in wsgi_app
response = self.full_dispatch_... | 0 | 2016-08-27T22:55:47Z | 39,214,729 | <p>Change your id type as such:</p>
<pre><code>id = db.Column('id', db.Integer(), primary_key=True)
</code></pre>
| 0 | 2016-08-29T20:32:58Z | [
"python",
"mysql",
"flask",
"sqlalchemy"
] |
Read data from text file, into numpy array in python | 39,186,610 | <p>I want to read the file of below format into numpy array in python. </p>
<pre><code>ADIDGoogle#8a65c466-****-4a7e-****-0836c8884dae 2016-06-01 17:55:53
ADIDGoogle#8a65c466-****-4a7e-****-0836c8884dae 2016-06-01 17:55:53
ADIDGoogle#8a65c466-****-4a7e-****-0836c8884dae 2016-06-01 17:55:53
ADIDGoogle#8a664a70-****-... | 2 | 2016-08-27T23:09:40Z | 39,186,697 | <p>First of all, the <code>#</code> character in your file will make <code>numpy</code> think everything after "ADIDGoogle" in each line is a comment. It appears you can change the comment character using the <code>comments</code> kwarg in <code>np.loadtxt</code>. This will solve the <code>IndexError</code>, leaving th... | 2 | 2016-08-27T23:28:11Z | [
"python",
"arrays",
"numpy"
] |
Read data from text file, into numpy array in python | 39,186,610 | <p>I want to read the file of below format into numpy array in python. </p>
<pre><code>ADIDGoogle#8a65c466-****-4a7e-****-0836c8884dae 2016-06-01 17:55:53
ADIDGoogle#8a65c466-****-4a7e-****-0836c8884dae 2016-06-01 17:55:53
ADIDGoogle#8a65c466-****-4a7e-****-0836c8884dae 2016-06-01 17:55:53
ADIDGoogle#8a664a70-****-... | 2 | 2016-08-27T23:09:40Z | 39,186,880 | <p>You can read via <code>genfromtxt</code> line-by-line</p>
<pre><code>import numpy as np
fname = "./data.txt"
with open(fname, 'r') as f:
data = np.genfromtxt(f,comments="!",dtype="string",usecols=(1,2))
print data
</code></pre>
| 1 | 2016-08-28T00:09:01Z | [
"python",
"arrays",
"numpy"
] |
Set vertical size for the pop-up menu of a GtkComboBox | 39,186,665 | <p>I created a GtkComboBox with dozens of items. When I perform I see that the pop-up menu containing the items is very vertically large.
How do I set a maximum size? I checked the documentation and I not found a method to define it.</p>
<p>Example:</p>
<pre><code>#!/usr/bin/env python3
import gi
gi.require_version(... | 2 | 2016-08-27T23:23:04Z | 39,257,099 | <p>As far as I know (and can find), it is impossible to set the number of rows in a GtkComboBox drop down menu.</p>
<p>If you insist on using <code>Gtk.ComboBox()</code>, you can however reduce the height in case of large amounts of entries by using:</p>
<pre><code>combobox.set_wrap_width(5)
</code></pre>
<p>Which w... | 1 | 2016-08-31T19:00:02Z | [
"python",
"gtk",
"gtk3"
] |
How to make a proxy object behave like the integer it wraps? | 39,186,692 | <p>I want to create a proxy class that wraps an <code>int</code> for thread-safe access. In contrast to the built-in type, the proxy class is mutable, so that it can be incremented in-place. Now, I want to use that class just as a normal integer from the outside. Usually, Python's <code>__getattr__</code> makes it very... | 2 | 2016-08-27T23:27:34Z | 39,190,081 | <p>The blog post linked by <a href="http://stackoverflow.com/users/5378816/vpfb">@VPfB</a> in the <a href="http://stackoverflow.com/questions/39186692/how-to-make-a-proxy-object-behave-like-the-integer-it-wraps/39190081#comment65719596_39186692">comments</a> has a more generic and thorough solution to proxying dunder m... | 2 | 2016-08-28T09:58:25Z | [
"python",
"python-3.x",
"proxy"
] |
Internal C++ object already deleted (pyside) | 39,186,716 | <p>The aim of this program is to show the tradeWindow as a QWidget and then show a QDialog each time doStuff is called (via button) if there are results. The code works first time, but second time i get error messages:</p>
<pre class="lang-none prettyprint-override"><code>Traceback (most recent call last):
File "GUI... | 0 | 2016-08-27T23:31:01Z | 39,190,134 | <p>After your <code>Dialog</code> is closed, and the <code>popup</code> variable referencing it goes out of scope, Python will garbage-collect it. This causes the entire underlying C++ object, including all of its sub-widgets and layouts, to be deleted. However, you're keeping a reference to a layout used by the dialo... | 1 | 2016-08-28T10:04:30Z | [
"python",
"qt",
"pyside"
] |
get both unique count and max in group-by of pandas dataframe | 39,186,843 | <p>Using Pandas data frame group by feature and I want to group by column <code>c_b</code> and (1) calculate unique count for column <code>c_a</code> and column <code>c_c</code>, (2) and get the max value of column c_d. Wondering if there is any solution to write one line of group by code to achieve both goals? I tried... | 2 | 2016-08-28T00:01:23Z | 39,187,330 | <p>You can pass a dict to <code>agg()</code>:</p>
<pre><code>df.groupby('c_b').agg({'c_a':'nunique', 'c_c':'nunique', 'c_d':'max'})
</code></pre>
<p>If you don't want <code>c_b</code> as index, you can pass <code>as_index=False</code> to <code>groupby</code>:</p>
<pre><code>df.groupby('c_b', as_index=False).agg({'c_... | 3 | 2016-08-28T01:50:19Z | [
"python",
"python-2.7",
"pandas",
"dataframe",
"group-by"
] |
import hooks (custom module loaders) for pypy do not work | 39,186,850 | <p>I'm successfully able to create import hooks to load files directly from memory in python2.7. The example I used was the accepted response to this question:</p>
<p><a href="http://stackoverflow.com/questions/14191900/pythonimport-module-from-memory">python:Import module from memory</a></p>
<p>However; when applyi... | 0 | 2016-08-28T00:02:29Z | 39,188,737 | <p>The problem is that in both of the examples you point to, <code>load_module()</code> does not add the loaded module to <code>sys.modules</code>. Normally, it should do so (and then PyPy works like CPython).</p>
<p>If <code>load_module()</code> does not add the module to <code>sys.modules</code>, then every single ... | 1 | 2016-08-28T06:55:23Z | [
"python",
"pypy"
] |
Max and min value in list of dicts where each dict key has a value | 39,186,852 | <p>All the answers I found to this seem to make you have to <a href="http://stackoverflow.com/questions/5320871/in-list-of-dicts-find-min-value-of-a-common-dict-field">specify which key</a> you want to find the max/min for e.g. <a href="http://stackoverflow.com/questions/19759374/finding-minimum-values-in-a-list-of-dic... | 0 | 2016-08-28T00:03:01Z | 39,186,865 | <p>You can flatten the values, then find the min and max:</p>
<pre><code>from itertools import chain
flattened = list(chain(*(d.values() for d in list_of_dicts)))
print(min(flattened))
print(max(flattened))
</code></pre>
| 1 | 2016-08-28T00:07:03Z | [
"python",
"list",
"dictionary",
"max",
"min"
] |
Max and min value in list of dicts where each dict key has a value | 39,186,852 | <p>All the answers I found to this seem to make you have to <a href="http://stackoverflow.com/questions/5320871/in-list-of-dicts-find-min-value-of-a-common-dict-field">specify which key</a> you want to find the max/min for e.g. <a href="http://stackoverflow.com/questions/19759374/finding-minimum-values-in-a-list-of-dic... | 0 | 2016-08-28T00:03:01Z | 39,186,878 | <p>You can use a list comprehension or generator expression.</p>
<pre><code>max([max(d.values()) for d in data])
</code></pre>
| 2 | 2016-08-28T00:08:44Z | [
"python",
"list",
"dictionary",
"max",
"min"
] |
filling individual frames in tkinter notebook Tabs with widgets (after automatic tab generation) | 39,186,863 | <p>I found a way makeing it easy to automatically generate multiple Tabs with the ttk notebook. As a "solution" to: <a href="http://stackoverflow%20-%20Automatic%20multiple%20Tab%20generation%20with%20tkinter%20notebook">http://stackoverflow.com/questions/39175898/automatic-multiple-tab-generation-with-tkinter-notebook... | -3 | 2016-08-28T00:05:14Z | 39,472,023 | <p>The rule is quite simple: to place a widget in another widget, you need a reference to the other widget. In your case, the simple thing to do is create a dictionary to hold references to your frames:</p>
<pre><code>tabs = {}
for i in range(0, len(tab_names)):
tab = MyTab(self.notebook, tab_names[i])
self.no... | 0 | 2016-09-13T14:02:37Z | [
"python",
"tkinter",
"tabs",
"widget",
"ttk"
] |
Logging for multiple objects: IOError | 39,186,906 | <p>I have a class called <code>Job</code> which has a logger</p>
<pre><code>class MyFileHandler(logging.FileHandler):
def __init__(self, filename):
self.filename = filename
super(MyFileHandler, self).__init__(filename)
def emit(self, record):
log_text = self.format(record)
try:... | 0 | 2016-08-28T00:12:55Z | 39,186,991 | <p>Guess your operating system is running out of file handles.</p>
| 0 | 2016-08-28T00:30:42Z | [
"python",
"python-2.7",
"logging"
] |
Logging for multiple objects: IOError | 39,186,906 | <p>I have a class called <code>Job</code> which has a logger</p>
<pre><code>class MyFileHandler(logging.FileHandler):
def __init__(self, filename):
self.filename = filename
super(MyFileHandler, self).__init__(filename)
def emit(self, record):
log_text = self.format(record)
try:... | 0 | 2016-08-28T00:12:55Z | 39,187,435 | <p>Fyi, instead of executing <code>self.logger.info(msg)</code> directly, i just wrapped it around the following code which opens filehandler and closes it each time im writing to a log..</p>
<p>rewrite <code>self.logger.info(msg)</code> to <code>self.write_to_log(msg)</code></p>
<p>where:</p>
<pre><code>def write_t... | 0 | 2016-08-28T02:11:51Z | [
"python",
"python-2.7",
"logging"
] |
Cygwin Setup does not install gdb.exe | 39,186,984 | <p>I'm trying to use NetBeans 8.1 with Cygwin to write, compile and debug a C program. I knew nothing about C when I started this, and somehow found my way to fixing all the compiler errors. But when it came time to debug there was no debugger! Long story short, there's no gdb.exe in the Cygwin/bin directory and even ... | 0 | 2016-08-28T00:28:26Z | 39,187,596 | <p>(I wrote this before I saw matzeri's response. I still may try extending python to run code from the C library, but getting the C code I've already written to work would be vastly preferable.)</p>
<p>I have no idea what's going on with Cygwin's gdb, but after getting over my frustration I answered my alternative qu... | 0 | 2016-08-28T02:51:32Z | [
"python",
"c",
"netbeans",
"gdb",
"cygwin"
] |
Cygwin Setup does not install gdb.exe | 39,186,984 | <p>I'm trying to use NetBeans 8.1 with Cygwin to write, compile and debug a C program. I knew nothing about C when I started this, and somehow found my way to fixing all the compiler errors. But when it came time to debug there was no debugger! Long story short, there's no gdb.exe in the Cygwin/bin directory and even ... | 0 | 2016-08-28T00:28:26Z | 39,188,541 | <p>Cygwin setup can install ~ 4000 packages.GDB is one of them.<br>
Why do you think GDB should be installed by default ?</p>
<p>Please read:<br>
<a href="https://cygwin.com/cygwin-ug-net/setup-net.html#setup-packages" rel="nofollow">https://cygwin.com/cygwin-ug-net/setup-net.html#setup-packages</a></p>
| 1 | 2016-08-28T06:20:53Z | [
"python",
"c",
"netbeans",
"gdb",
"cygwin"
] |
TensorFlow: how to name operations for tf.get_variable | 39,187,009 | <p>My question is related to this <a href="http://stackoverflow.com/questions/36612512/tensorflow-how-to-get-a-tensor-by-name">Tensorflow: How to get a tensor by name?</a></p>
<p>I can give names to operations. But actually they named differently.
For example:</p>
<pre><code>In [11]: with tf.variable_scope('test_scop... | 1 | 2016-08-28T00:35:16Z | 39,189,462 | <p><code>tf.get_variable()</code> won't work to get an operation. Therefore, I would define a new variable storing <code>tf.maximum(1,2)</code> to retrieve it later:</p>
<pre><code>import tensorflow as tf
with tf.variable_scope('test_scope') as scope:
a1 = tf.get_variable('a', [1])
b1 = tf.get_variable('b', i... | 1 | 2016-08-28T08:43:08Z | [
"python",
"tensorflow"
] |
TensorFlow: how to name operations for tf.get_variable | 39,187,009 | <p>My question is related to this <a href="http://stackoverflow.com/questions/36612512/tensorflow-how-to-get-a-tensor-by-name">Tensorflow: How to get a tensor by name?</a></p>
<p>I can give names to operations. But actually they named differently.
For example:</p>
<pre><code>In [11]: with tf.variable_scope('test_scop... | 1 | 2016-08-28T00:35:16Z | 39,189,727 | <p>I disagree with @rvinas answer, you don't need to create a Variable to hold the value of a tensor you want to retrieve. You can just use <code>graph.get_tensor_by_name</code> with the correct name to retrieve your tensor:</p>
<pre class="lang-py prettyprint-override"><code>with tf.variable_scope('test_scope') as sc... | 1 | 2016-08-28T09:18:11Z | [
"python",
"tensorflow"
] |
Python: Line break after every nth line split | 39,187,012 | <p>I want to force a line break after every 10 numbers or 9 nine splits on a txt file in python? How would I go about this? So say i have </p>
<pre><code>Input would be something like:
40 20 30 50 40 40 40 40 40 40
20 40 20 30 50 40 40 40
20 40 20 30 50 40 40 40 40 20 20 20
20 20 20
</code></pre>
<p>int a txt.fi... | 0 | 2016-08-28T00:36:04Z | 39,187,045 | <p>How about using [count] to count the occurrences of an item in the list?</p>
<pre><code>list == [40, 20, 30, 50, 40, 40, 40, 40, 40, 40, 20]
for i in list:
if list.count(i) > 10:
# Do Stuff
</code></pre>
| 0 | 2016-08-28T00:45:01Z | [
"python"
] |
Python: Line break after every nth line split | 39,187,012 | <p>I want to force a line break after every 10 numbers or 9 nine splits on a txt file in python? How would I go about this? So say i have </p>
<pre><code>Input would be something like:
40 20 30 50 40 40 40 40 40 40
20 40 20 30 50 40 40 40
20 40 20 30 50 40 40 40 40 20 20 20
20 20 20
</code></pre>
<p>int a txt.fi... | 0 | 2016-08-28T00:36:04Z | 39,187,233 | <p>It looks like everything below the <code>with</code> statement should be indented one more level. Your method seems like a good start, but it will not work if there are more than 2 groups on one line. The following code takes care of that and simplifies things a bit:</p>
<pre><code>with open('practice.txt') as f:
... | 2 | 2016-08-28T01:24:02Z | [
"python"
] |
Python list slicing | 39,187,018 | <p>I'm not able understand what to do here. Can someone help.</p>
<p>I've a few lists:</p>
<pre><code>array = [7,8,2,3,4,10,5,6,7,10,8,9,10,4,5,12,13,14,1,2,15,16,17]
slice = [2, 4, 6, 8, 10, 12, 15, 17, 20, 22]
intervals = [12, 17, 22]
output = []
intermediate = []
</code></pre>
<p><code>slice</code> is a list of i... | 1 | 2016-08-28T00:36:49Z | 39,187,334 | <p>A straightforward solution:</p>
<pre><code>array_ = [7,8,2,3,4,10,5,6,7,10,8,9,10,4,5,12,13,14,1,2,15,16,17]
slice_ = [2, 4, 6, 8, 10, 12, 15, 17, 20, 22]
intervals = [12, 17, 22]
output = []
intermediate = []
for i in range(0, len(slice_), 2):
intermediate.extend(array_[slice_[i]:slice_[i+1]+1])
if slice_... | 3 | 2016-08-28T01:50:53Z | [
"python",
"list"
] |
Python list slicing | 39,187,018 | <p>I'm not able understand what to do here. Can someone help.</p>
<p>I've a few lists:</p>
<pre><code>array = [7,8,2,3,4,10,5,6,7,10,8,9,10,4,5,12,13,14,1,2,15,16,17]
slice = [2, 4, 6, 8, 10, 12, 15, 17, 20, 22]
intervals = [12, 17, 22]
output = []
intermediate = []
</code></pre>
<p><code>slice</code> is a list of i... | 1 | 2016-08-28T00:36:49Z | 39,187,609 | <p>Here is a recursive solution which goes through the index once and dynamically check if the index is within the intervals and append the sliced results to a list accordingly:</p>
<pre><code>def slicing(array, index, stops, sliced):
# if the length of index is smaller than two, stop
if len(index) < 2:
... | 2 | 2016-08-28T02:54:19Z | [
"python",
"list"
] |
What is the difference between table level operation and record-level operation? | 39,187,032 | <p>While going through the documentation of django to muster the detailed knowledge, i endured the word 'table level operation' and 'record level operation'. What is the difference in between them? Could anyone please explain me this 2 word with example? Does they have other name too? </p>
<p>P.S I am not asking their... | 0 | 2016-08-28T00:41:26Z | 39,187,633 | <p>I do not know specifically how Django people use the terms, but 'record-level operation' should mean an operation on 1 or more records while a 'table-level operation' should mean an operation of the table as a whole. I am not quite sure what an operation on all rows should be -- perhaps both, perhaps it depends on ... | 0 | 2016-08-28T02:58:44Z | [
"python",
"django",
"database",
"django-models"
] |
What is the difference between table level operation and record-level operation? | 39,187,032 | <p>While going through the documentation of django to muster the detailed knowledge, i endured the word 'table level operation' and 'record level operation'. What is the difference in between them? Could anyone please explain me this 2 word with example? Does they have other name too? </p>
<p>P.S I am not asking their... | 0 | 2016-08-28T00:41:26Z | 39,194,511 | <p>In the context of Django, record level operations are those that on a single records. An example is when you define custom methods in a model:</p>
<pre><code>class Person(models.Model):
first_name = models.CharField(max_length=50)
last_name = models.CharField(max_length=50)
birth_date = models.DateField... | 1 | 2016-08-28T18:31:24Z | [
"python",
"django",
"database",
"django-models"
] |
python multi inheritance with parent classes have different __init__() | 39,187,040 | <p>Here both <code>B</code> and <code>C</code> are derived from <code>A</code>, but with different <code>__init__()</code> parameters. My question is how to write the correct/elegant code here to initialize self.a,self.b,self.c1,self.c2 in the following example?
Maybe another question is--is it a good coding practice t... | 0 | 2016-08-28T00:44:02Z | 39,188,237 | <p>Multiple inheritance in Python requires that all the classes cooperate to make it work. In this case, you can make them cooperate by having the <code>__init__</code> method in each class accept arbitrary <code>**kwargs</code> and pass them on when they call <code>super().__init__</code>.</p>
<p>For your example cla... | 1 | 2016-08-28T05:15:20Z | [
"python",
"multiple-inheritance"
] |
NLTK CFG recursion depth error | 39,187,042 | <pre><code>import nltk
from nltk.parse.generate import generate,demo_grammar
from nltk import CFG
grammar = CFG.fromstring("""
ROOT -> S
S -> NP VP
NP -> NP PP
NP -> DT NN
DT -> 'The'
NN -> 'work'
PP -> IN NP
IN -> 'of'
NP -> DT NN
DT -> 'the'
NN -> 'painter'
VP -> VBZ AD... | 0 | 2016-08-28T00:44:11Z | 39,191,332 | <p>The function <code>generate</code>, as its docstring states, "Generates an iterator of all sentences from a CFG." Clearly it does so by choosing alternative expansions in the order they are listed in the grammar. So, the first time is sees an <code>NP</code>, it expands it with the rule <code>NP -> NP PP</code>. ... | 3 | 2016-08-28T12:34:44Z | [
"python",
"nltk"
] |
NLTK CFG recursion depth error | 39,187,042 | <pre><code>import nltk
from nltk.parse.generate import generate,demo_grammar
from nltk import CFG
grammar = CFG.fromstring("""
ROOT -> S
S -> NP VP
NP -> NP PP
NP -> DT NN
DT -> 'The'
NN -> 'work'
PP -> IN NP
IN -> 'of'
NP -> DT NN
DT -> 'the'
NN -> 'painter'
VP -> VBZ AD... | 0 | 2016-08-28T00:44:11Z | 39,196,885 | <p>I tried to number the repeating occurrence of NP NN DT etc. It seems to solve the problem due to unique identification( I presume). What wonders me is it should have been like this at first place i.e the tree production thrown out should have serialized the parts of speech. </p>
<pre><code>import nltk
from n... | -1 | 2016-08-28T23:57:48Z | [
"python",
"nltk"
] |
How to set environment variables for current Command Prompt session from Python | 39,187,043 | <p>I've been stumped for far too long. Hoping someone can assist.</p>
<p>I am writing a Python CLI application that needs to set a temporary environment variable (PATH) for the current command prompt session (Windows). The application already sets the environment variables permanently for all future sessions, using ... | 1 | 2016-08-28T00:44:53Z | 39,187,084 | <p>Brute-force but straightforward is to emit your assignments as a batch script on stdout, and execute that script in the existing interpreter (akin to <code>source</code> in bash):</p>
<pre><code>python myscript >%TEMP%\myscript-vars.bat
call %TEMP%\myscript-vars.bat
del %TEMP%\myscript-vars.bat
</code></pre>
| 2 | 2016-08-28T00:52:57Z | [
"python",
"windows",
"environment-variables"
] |
Failure to reproduce GridSearch from sklearn in python | 39,187,055 | <p>I am trying to do something similar to GridSearch in sklearn: I want to get a list of three models, where all parameters are fixed except for C corresponding to the 1, 10, and 100 in each model. I have the following two functions. </p>
<pre><code>def params_GridSearch(dic_params):
keys, values = dic_params.keys... | 0 | 2016-08-28T00:47:20Z | 39,188,223 | <p><code>model</code> refers to the same object throughout each iteration of the list comprehension in <code>model_GridSearch</code>, so you're just assigning a <code>C</code> value 3 times to the same object. You can do a few different things to fix this: you could a copy of the object using the <code>copy</code> mod... | 2 | 2016-08-28T05:12:22Z | [
"python",
"scikit-learn",
"grid-search"
] |
TDSVersion keeps defaulting to 7.1 pymssql | 39,187,089 | <p>IMPORTANT CHANGE:</p>
<p>The following command also works and gets me the correct prompt. There must then be an issue with pymssql.</p>
<pre><code>sudo TDSVER=7.1 tsql -H asdf.database.windows.net -p 1433 -U adf@ad -P adsf#adf -D adf
</code></pre>
<p>So I'm fighting with my pymssql and freetds drivers.</p>
<p>P... | 0 | 2016-08-28T00:53:43Z | 39,190,882 | <p>Unfortunately you don't tell us:</p>
<ul>
<li>Which TDS version you wish to actually use.</li>
<li>Which pymssql version you are using and how you've installed it</li>
</ul>
<p>If you are trying to use TDS 8.0 and see pymssql+FreeTDS is using 7.1 then you </p>
<p>a) Don't need to worry as they are the same thing.... | 2 | 2016-08-28T11:42:23Z | [
"python",
"database",
"sql-azure",
"freetds",
"pymssql"
] |
TDSVersion keeps defaulting to 7.1 pymssql | 39,187,089 | <p>IMPORTANT CHANGE:</p>
<p>The following command also works and gets me the correct prompt. There must then be an issue with pymssql.</p>
<pre><code>sudo TDSVER=7.1 tsql -H asdf.database.windows.net -p 1433 -U adf@ad -P adsf#adf -D adf
</code></pre>
<p>So I'm fighting with my pymssql and freetds drivers.</p>
<p>P... | 0 | 2016-08-28T00:53:43Z | 39,193,758 | <p>It appears that freetds v0.95 is not compatible with Ubuntu 16.04 and neither is the latest version of pymssql since it ships with v0.95 and it appears there isn't much you can do to swap the version it uses out.</p>
<p>I was able to get this to work by doing the following:</p>
<pre><code>sudo apt-get install free... | 0 | 2016-08-28T17:05:45Z | [
"python",
"database",
"sql-azure",
"freetds",
"pymssql"
] |
Efficient ways to iterate over several numpy arrays and process current and previous elements? | 39,187,149 | <p>I've read a lot about different techniques for iterating over numpy arrays recently and it seems that consensus is not to iterate at all (for instance, see <a href="http://stackoverflow.com/questions/38207528/what-are-the-efficient-ways-to-loop-over-vectors-along-a-specified-axis-in-numpy">a comment here</a>). There... | 2 | 2016-08-28T01:06:35Z | 39,187,490 | <p>The <code>numpy.where()</code> version is fast enough, you can speedup it a little by <code>method3()</code>. If the <code>></code> condition can change to <code>>=</code>, you can also use <code>method4()</code>.</p>
<pre><code>import numpy as np
a = np.random.randn(100000)
def method1(a):
idx = []
... | 3 | 2016-08-28T02:24:16Z | [
"python",
"arrays",
"performance",
"numpy",
"itertools"
] |
Efficient ways to iterate over several numpy arrays and process current and previous elements? | 39,187,149 | <p>I've read a lot about different techniques for iterating over numpy arrays recently and it seems that consensus is not to iterate at all (for instance, see <a href="http://stackoverflow.com/questions/38207528/what-are-the-efficient-ways-to-loop-over-vectors-along-a-specified-axis-in-numpy">a comment here</a>). There... | 2 | 2016-08-28T01:06:35Z | 39,187,539 | <p>I'll need to read your post in more detail, but will start with some general observations (from previous iteration questions).</p>
<p>There isn't an efficient way of iterating over arrays in Python, though there are things that slow things down. I like to distinguish between the iteration mechanism (<code>nditer</... | 3 | 2016-08-28T02:35:54Z | [
"python",
"arrays",
"performance",
"numpy",
"itertools"
] |
Alphabetical pairing of CSV elements while keeping first element constant in python | 39,187,192 | <p>How is it possible to take a CSV file with rows of varying lengths (up to 12 in practice) as input and then output a new CSV file where new rows consist of
the 0th element of each row + each unique pair of elements (>0th) in alphabetical order?</p>
<p>The original row elements are not in alphabetical order.</p>
<... | 0 | 2016-08-28T01:16:31Z | 39,187,305 | <p>You can use <a href="https://docs.python.org/3/library/csv.html#module-csv" rel="nofollow"><code>csv</code></a> for reading & writing and <a href="https://docs.python.org/3.5/library/itertools.html#itertools.combinations" rel="nofollow"><code>itertools.combinations</code></a> for generating the pairs:</p>
<pre>... | 1 | 2016-08-28T01:43:12Z | [
"python",
"python-3.x",
"sorting",
"csv",
"itertools"
] |
Brute-force search algorithm in arithmetic operations | 39,187,275 | <p>Since I'm a Python beginner, I'm trying to study some codes from some websites. I found in GitHub an algorithm which does a <a href="https://en.wikipedia.org/wiki/Brute-force_search" rel="nofollow">Bruteforce search</a> for arithmetic expressions. The code is:</p>
<pre><code>#!python
import operator
import itertool... | 2 | 2016-08-28T01:36:27Z | 39,187,572 | <p>The recursion terminates by yielding str(num[0]) if num[0] equals target and nothing otherwise. If something is yielded, the string expression is built on successive yields. To get all expressions, something must always be yielded. I choose to also yield whether the target was reached. Instead, the expression cou... | 2 | 2016-08-28T02:44:19Z | [
"python",
"algorithm",
"math"
] |
How to add a new line after each loop? | 39,187,327 | <p>Currently getting this output</p>
<pre><code>[1, 1, 3, '\n']
[1, 1, 3, '\n', 7, 7, 7, '\n']
</code></pre>
<p>looking for this output</p>
<pre><code>[1, 1, 3]
[7, 7, 7]
</code></pre>
<p>Code:</p>
<pre><code> import random
my_list=[]
n = 3
m = 1
while m < 10:
for i in range(n): # repeats... | 1 | 2016-08-28T01:49:45Z | 39,187,371 | <pre><code>import random
n = 3
m = 0
my_list = []
while m < 10:
my_list.append([])
for i in range(n):
my_list[m].append(random.randrange(0, 9))
print(my_list[m])
m = m + 1
</code></pre>
<p>This code creates sublists inside <code>my_list</code>, and prints out each sublist every iteration. So... | 1 | 2016-08-28T01:58:47Z | [
"python",
"python-3.x",
"while-loop"
] |
How to add a new line after each loop? | 39,187,327 | <p>Currently getting this output</p>
<pre><code>[1, 1, 3, '\n']
[1, 1, 3, '\n', 7, 7, 7, '\n']
</code></pre>
<p>looking for this output</p>
<pre><code>[1, 1, 3]
[7, 7, 7]
</code></pre>
<p>Code:</p>
<pre><code> import random
my_list=[]
n = 3
m = 1
while m < 10:
for i in range(n): # repeats... | 1 | 2016-08-28T01:49:45Z | 39,187,412 | <p>I agree with @Neil It looks like you want a 2d array. Here's another way to do it.</p>
<pre><code>from random import randint
my_list = [[randint(1, 11) for i in xrange(10)] for j in xrange(randint(5, 10))]
</code></pre>
<p>This will create a 0 - 9 number object 5 to 9 times. e.g [[2,3,4,5...], [1,2,2,3...]...]</... | 1 | 2016-08-28T02:06:36Z | [
"python",
"python-3.x",
"while-loop"
] |
How to add a new line after each loop? | 39,187,327 | <p>Currently getting this output</p>
<pre><code>[1, 1, 3, '\n']
[1, 1, 3, '\n', 7, 7, 7, '\n']
</code></pre>
<p>looking for this output</p>
<pre><code>[1, 1, 3]
[7, 7, 7]
</code></pre>
<p>Code:</p>
<pre><code> import random
my_list=[]
n = 3
m = 1
while m < 10:
for i in range(n): # repeats... | 1 | 2016-08-28T01:49:45Z | 39,187,415 | <p>Put the my_list=[] inside the outer loop to reinitialize it each time. Also, if you don't want the newline, don't append it to my_list. If you want all the output on the same line use the optional arg <code>end</code> to the print function.</p>
<pre><code>import random
n = 3
m = 1
while m < 10:
my_list = []
... | 1 | 2016-08-28T02:07:43Z | [
"python",
"python-3.x",
"while-loop"
] |
Porting, Python to C# - How can I iterate a tuple over a tuple? | 39,187,360 | <p>I'm port a Python project over to C#.</p>
<p>So far I've run into this problem, is there any way I could port this to C#?</p>
<pre><code>verts = (-1,-1,-1),(1,-1,-1),(1,1,-1),(-1,1,-1),(-1,-1,1),(1,-1,1),(1,1,1),(-1,1,1)
edges = (0,1),(1,2),(2,3),(3,0),(4,5),(5,6),(6,7),(7,4),(0,4),(1,5),(2,6),(3,7)
for edge in e... | 0 | 2016-08-28T01:57:18Z | 39,187,742 | <p>This is one way you could go about doing it...</p>
<pre><code> var verts = new[]
{
new Tuple<int,int,int> (-1,-1,-1 ),
new Tuple<int,int,int> (1,-1,-1 ),
new Tuple<int,int,int> (1,1,-1 ),
new Tuple<int,int,int> (-1,1,-1 ),
... | 1 | 2016-08-28T03:22:38Z | [
"c#",
"python",
"3d",
"port"
] |
How to serialize 2 models with custom relationship in django-rest-framework? | 39,187,365 | <p>I have 2 existing tables in database and i haven't permission to alter them. Show as models below.</p>
<pre><code>class Prenames(models.Model):
typ = models.DecimalField(max_digits=1, decimal_places=0, db_column='tprpretyp')
code = models.DecimalField(max_digits=3, decimal_places=0, db_column='tprprecod')
... | 1 | 2016-08-28T01:57:59Z | 39,189,721 | <p>Try this:</p>
<pre><code>prenames = PrenameSerializer(source="how_you_get_this_field, many=True, read_only=True)
</code></pre>
| 1 | 2016-08-28T09:17:29Z | [
"python",
"django",
"django-rest-framework"
] |
How to serialize 2 models with custom relationship in django-rest-framework? | 39,187,365 | <p>I have 2 existing tables in database and i haven't permission to alter them. Show as models below.</p>
<pre><code>class Prenames(models.Model):
typ = models.DecimalField(max_digits=1, decimal_places=0, db_column='tprpretyp')
code = models.DecimalField(max_digits=3, decimal_places=0, db_column='tprprecod')
... | 1 | 2016-08-28T01:57:59Z | 39,190,687 | <p>Thanks @Aison for giving me an inspiration.
This solution is not exactly what I want. But it save my life for now.
From <a href="http://www.django-rest-framework.org/api-guide/fields/#serializermethodfield" rel="nofollow">SerializerMethodField</a>. I decided to modify ProfileSerializer to</p>
<pre><code>class Patie... | 0 | 2016-08-28T11:14:53Z | [
"python",
"django",
"django-rest-framework"
] |
How to correctly uninstall numpy on MacOSX? | 39,187,374 | <p>I'm on a Mac, and I installed <code>numpy</code> and <code>sklearn</code> in that order. Now, I'm faced with these errors that have already been mentioned on SO several times: </p>
<p><a href="http://stackoverflow.com/questions/38197086/sklearn-numpy-dtype-has-the-wrong-size-try-recompiling-in-both-pycharm-and-te... | 0 | 2016-08-28T01:59:05Z | 39,188,275 | <p>If you're using the brew version of python</p>
<pre><code>brew uninstall numpy
</code></pre>
<p>If you're using the mac version of python:</p>
<p>python 2.7</p>
<pre><code>pip uninstall numpy
</code></pre>
<p>python 3</p>
<pre><code>pip3 uninstall numpy
</code></pre>
| 1 | 2016-08-28T05:24:34Z | [
"python",
"osx",
"python-2.7",
"numpy"
] |
How to correctly uninstall numpy on MacOSX? | 39,187,374 | <p>I'm on a Mac, and I installed <code>numpy</code> and <code>sklearn</code> in that order. Now, I'm faced with these errors that have already been mentioned on SO several times: </p>
<p><a href="http://stackoverflow.com/questions/38197086/sklearn-numpy-dtype-has-the-wrong-size-try-recompiling-in-both-pycharm-and-te... | 0 | 2016-08-28T01:59:05Z | 39,323,756 | <p>To solve this, I did the following: (note that it is not entirely clear to me which of these solved the problem, since I didn't test thoroughly).</p>
<p>1) Installed python at Python.org instead of Mac's stupid version</p>
<p>2) re-installed all of the modules like <code>numpy</code>, <code>scipy</code>, <co... | 1 | 2016-09-05T03:59:50Z | [
"python",
"osx",
"python-2.7",
"numpy"
] |
Installed app in Django not found when running tests | 39,187,382 | <p>I have a pretty simple Django app, that I am trying to run unit tests on. In my tests.py file I am trying to import the parent apps views file. I tried 'from . import views' but got an error:</p>
<pre><code>SystemError: Parent module '' not loaded, cannot perform relative import
</code></pre>
<p>I read that when a... | 2 | 2016-08-28T02:01:24Z | 39,188,059 | <p>It's not much information you gave us.. but when I take a look at the Traceback it says <code>File 'menu/tests.py'</code>. So if the views.py is also inside the menu Folder you just can write:</p>
<pre><code>import views
</code></pre>
<p>If the views.py is in the main folder you could write:</p>
<pre><code>from .... | 2 | 2016-08-28T04:36:25Z | [
"python",
"django",
"testing",
"module"
] |
how rsync_project to run on the remote server | 39,187,394 | <p>Here is my scenario:</p>
<p><img src="https://cloud.githubusercontent.com/assets/759107/18025282/f5ba497a-6c5f-11e6-86be-b7324f109192.png" alt="fabric-question"> </p>
<p>I want to execute local fab command to rsync code in the bastion server to the web server parallel, but I find <code>rsync_project</code> can on... | 0 | 2016-08-28T02:03:31Z | 39,252,618 | <p>I think your best bet would be to install fabric and rsync_project on 'bastion' and use fabrics "run" to call rsync_project on bastion.</p>
<p>Another option would be to use "get" to receive a copy from bastion and run rsync_project locally. But this approach will not match your picture.</p>
| 0 | 2016-08-31T14:40:10Z | [
"python",
"fabric"
] |
Django error with ViewSet using SimpleRouter | 39,187,408 | <p>views.py</p>
<pre><code>from rest_framework import viewsets
from rest_framework.response import Response
from rest_framework import generics
from ticker.serializers import PriceSerializer
from ticker.models import Price
import datetime
from nexchange.settings import DEFAULT_HOUR_RANGE
class LastPricesViewSet(view... | 0 | 2016-08-28T02:05:27Z | 39,187,711 | <p>Solution:
You must inherit from <code>viewsets.ViewSetMixin</code> to implement the methods that are required by a ViewSetClass to be registered with the DRF router, otherwise it is possible to use the simple Django <code>urlconf</code> notation.</p>
<p><code>views.py:</code></p>
<pre><code>class PriceHistoryViewS... | 0 | 2016-08-28T03:14:47Z | [
"python",
"django-rest-framework"
] |
Trying to automate voucher code input with Selenium Python | 39,187,438 | <p>Ok so, I'm 16 and am new to Python. I need projects to do to help me learn, so I came up with a PlayStation Plus code generator as a project and so far it does:</p>
<p>-Generates a code
-Logs in to Account Management at Sony's site
-Enters code at redeem section
-Checks if error occurred</p>
<pre><code>voucher_box... | 0 | 2016-08-28T02:12:16Z | 39,187,667 | <p>This is an idea of what I mentioned in the comment</p>
<pre><code>while i < amount:
try:
counter = 0
# make sure that the elements can be found
# try ten times and then break out of loop
while counter < 10:
try:
voucher_box = driver.find_element_by_id("voucherCode... | 0 | 2016-08-28T03:06:45Z | [
"python",
"python-3.x",
"selenium"
] |
Am I crazy or is it actually going this fast? (MultiThreading) | 39,187,449 | <pre><code>from tornado import httpclient
import time
start = time.time()
for x in range(1000):
httpclient.AsyncHTTPClient().fetch("https://www.google.com", method="GET")
print ('{0} seconds'.format(time.time() - start))
</code></pre>
<p>Result <code>1.11500000954 seconds</code></p>
<p>I wrote this to see how ... | 4 | 2016-08-28T02:14:48Z | 39,187,486 | <p>Well, yes, you spun off 1000 <em>asynchronous</em> requests to Google and timed that. You did not, however, time the overhead of actually making the HTTP call. That would require a <a href="http://www.tornadoweb.org/en/stable/httpclient.html#tornado.httpclient.AsyncHTTPClient">callback-type</a> of handler.</p>
| 5 | 2016-08-28T02:24:01Z | [
"python",
"multithreading",
"tornado"
] |
Am I crazy or is it actually going this fast? (MultiThreading) | 39,187,449 | <pre><code>from tornado import httpclient
import time
start = time.time()
for x in range(1000):
httpclient.AsyncHTTPClient().fetch("https://www.google.com", method="GET")
print ('{0} seconds'.format(time.time() - start))
</code></pre>
<p>Result <code>1.11500000954 seconds</code></p>
<p>I wrote this to see how ... | 4 | 2016-08-28T02:14:48Z | 39,187,493 | <p>I haven't run this yet, so I could be wrong, but fetch() is an asynchronous method that takes a callback, and the callback is what handles the response from the server when it comes. In other words, I'm pretty sure all you're doing here in this ~1 second is creating the representations of the requests â you're def... | 0 | 2016-08-28T02:24:55Z | [
"python",
"multithreading",
"tornado"
] |
Am I crazy or is it actually going this fast? (MultiThreading) | 39,187,449 | <pre><code>from tornado import httpclient
import time
start = time.time()
for x in range(1000):
httpclient.AsyncHTTPClient().fetch("https://www.google.com", method="GET")
print ('{0} seconds'.format(time.time() - start))
</code></pre>
<p>Result <code>1.11500000954 seconds</code></p>
<p>I wrote this to see how ... | 4 | 2016-08-28T02:14:48Z | 39,275,759 | <p>As the other answers already pointed out, <code>tornado</code> works asynchronously. You have to run the requests in an <a href="http://www.tornadoweb.org/en/stable/ioloop.html#ioloop-objects" rel="nofollow"><code>IOLoop</code></a>. Please note that this has nothing to do with multithreading. The requests are execut... | 0 | 2016-09-01T15:38:50Z | [
"python",
"multithreading",
"tornado"
] |
Can Python's functool's reduce work with functions in the iterable? | 39,187,477 | <p>I'm trying to figure out how to return a function in Python. However, I don't know if the issue is with <code>reduce</code> or with my code. What I currently have is this:</p>
<h3>Code:</h3>
<pre><code>def combine(*args):
from functools import reduce
def closure(val):
return reduce( (lambda x, f: f... | 0 | 2016-08-28T02:21:19Z | 39,187,508 | <p>As it is defined in your question, <code>fifth(x)</code> is the same as:</p>
<pre><code>fifth(x) = shift(shift(shift(shift(first(x)))))
</code></pre>
<p>Now, if <code>x = [1,2,3,4,5,6,7,8,9]</code>, then</p>
<pre><code>first(x) = 1
</code></pre>
<p>But that means that</p>
<pre><code>shift(first(x)) = first(x)[1... | 3 | 2016-08-28T02:28:45Z | [
"python",
"reduce"
] |
Scraping ASP Page with Python | 39,187,532 | <p>I'm trying to access an asp page to get data from a website but it always redirects my to its main page. I've tried setting allow_redirect to false but that throws an error, saying "the object has moved and can be found at href=main.htm". The website requires basic auth.</p>
<p>-The url I want the data from is:</p>... | 0 | 2016-08-28T02:34:56Z | 39,188,252 | <p>I was able to access the .asp page by first loading a primary asp page </p>
<pre><code>s.get(example.com.au/blah/menu.asp)
</code></pre>
<p>then loading the asp page I wanted</p>
<pre><code>r = s.get(example.com.au/blah/webpage.asp)
</code></pre>
<p>under the same session.</p>
| 0 | 2016-08-28T05:17:51Z | [
"python",
"asp.net"
] |
Regular Expressions re.findall() | 39,187,726 | <p>I have a function which takes a count and a string as input. It should return a list of all words in that string of length count, and greater. Python however doesn't recognise my variable and returns an empty list.</p>
<pre><code>def word_number(count, string):
return re.findall(r'\w{count,}', string)
</code></... | 3 | 2016-08-28T03:18:10Z | 39,187,732 | <p>You can use <a href="https://docs.python.org/2/library/string.html#format-examples" rel="nofollow">str.format</a> to achieve your goal.</p>
<pre><code>def word_number(count, string):
return re.findall(r'\w{{{0},}}'.format(count), string)
</code></pre>
| 2 | 2016-08-28T03:19:11Z | [
"python",
"regex"
] |
Regular Expressions re.findall() | 39,187,726 | <p>I have a function which takes a count and a string as input. It should return a list of all words in that string of length count, and greater. Python however doesn't recognise my variable and returns an empty list.</p>
<pre><code>def word_number(count, string):
return re.findall(r'\w{count,}', string)
</code></... | 3 | 2016-08-28T03:18:10Z | 39,187,753 | <p>You can use <code>printf</code> style formatting:</p>
<pre><code>re.findall(r'\w{%s,}' % count, string)
</code></pre>
| 5 | 2016-08-28T03:25:29Z | [
"python",
"regex"
] |
Inheritance vs. Composition in Python for this specific case? | 39,187,738 | <p>Assume I have a series of classes as follows:
</p>
<pre><code>class A(object):
__init__(self,a):
self.a=a
class B(A):
__init__(self,a,b):
super(B,self).__init__(a)
self.b=b
class C(A):
__init__(self,a,c1,c2):
super(C,self).__init__(a)
self.c1=c1
self.c2=c2... | 0 | 2016-08-28T03:21:55Z | 39,187,786 | <p>You're bound to get some level of opinion on a question like this -- My answer is to use inheritance <em>iff</em> your classes are designed to be inherited. Use composition in all the other cases. In practice, this usually means that if the code that you are extending exists in a realm out of your control, don't s... | 1 | 2016-08-28T03:32:49Z | [
"python",
"inheritance",
"combinations"
] |
tensorflow: efficient feeding of eval/train data using queue runners | 39,187,764 | <p>I'm trying to run a tensorflow graph to train a model and periodically evaluate using a separate evaluation dataset. Both training and evaluation data is implemented using queue runners.</p>
<p>My current solution is to create both inputs in the same graph and use a <code>tf.cond</code> dependent on an <code>is_tra... | 2 | 2016-08-28T03:27:25Z | 39,196,611 | <p>After some experimentation, my current best solution is to have a main graph featuring training inputs and a separate graph with just evaluation data operations. I open a separate session to get evaluation data and feed this to the training graph when I want to evaluate. Highly inelegant (and evaluation runs take lo... | 0 | 2016-08-28T23:11:01Z | [
"python",
"tensorflow"
] |
models Django invalid literal for int() with base 10: 'None' | 39,187,765 | <p>I am new to Django, I am tring to make a Blog here is my models </p>
<pre><code>from django.db import models
from django.contrib.auth.models import User
class UserProfile(models.Model):
name = models.OneToOneField(User)
def __unicode__(self):
return self.user.user_name
class Category(models.Mod... | 3 | 2016-08-28T03:27:43Z | 39,187,801 | <p>Instead of <code>default="None"</code>, specify <code>null=True</code> to allow null for foreign key:</p>
<pre><code>category = models.ForeignKey(Category, null=True)
</code></pre>
| 5 | 2016-08-28T03:35:49Z | [
"python",
"django",
"django-models"
] |
Find rows with non zero values in a subset of columns in pandas dataframe | 39,187,788 | <p>I have a datframe with 4 columns of strings and others as integers. Now I need to find out those rows of data where at least one of the column is a non-zero value (or > 0).</p>
<pre><code>manwra,sahAyaH,T7,0,0,0,0,T
manwra, akriti,T5,0,0,1,0,K
awma, prabrtih,B6, 0,1,1,0,S
</code></pre>
<p>My output should be</p>
... | 4 | 2016-08-28T03:33:08Z | 39,187,821 | <p>assume your dataframe is <code>df</code></p>
<pre><code>df.loc[(df.loc[:, df.dtypes != object] != 0).any(1)]
</code></pre>
<p><a href="http://i.stack.imgur.com/A6MMx.png" rel="nofollow"><img src="http://i.stack.imgur.com/A6MMx.png" alt="enter image description here"></a></p>
| 3 | 2016-08-28T03:41:50Z | [
"python",
"pandas",
"dataframe"
] |
Find rows with non zero values in a subset of columns in pandas dataframe | 39,187,788 | <p>I have a datframe with 4 columns of strings and others as integers. Now I need to find out those rows of data where at least one of the column is a non-zero value (or > 0).</p>
<pre><code>manwra,sahAyaH,T7,0,0,0,0,T
manwra, akriti,T5,0,0,1,0,K
awma, prabrtih,B6, 0,1,1,0,S
</code></pre>
<p>My output should be</p>
... | 4 | 2016-08-28T03:33:08Z | 39,188,088 | <p>You were close: </p>
<pre><code> #your's
KT[KT.ix[:,3:-2] != 0]
#works
KT[(KT.ix[:,3:6] > 0).any(1)]
0 1 2 3 4 5 6 7
1 manwra akriti T5 0 0 1 0 K
2 awma prabrtih B6 0 1 1 0 S
#key diff
(KT.ix[:,3:6] > 0)
3 4 5 6
0 False False F... | 2 | 2016-08-28T04:44:10Z | [
"python",
"pandas",
"dataframe"
] |
Find rows with non zero values in a subset of columns in pandas dataframe | 39,187,788 | <p>I have a datframe with 4 columns of strings and others as integers. Now I need to find out those rows of data where at least one of the column is a non-zero value (or > 0).</p>
<pre><code>manwra,sahAyaH,T7,0,0,0,0,T
manwra, akriti,T5,0,0,1,0,K
awma, prabrtih,B6, 0,1,1,0,S
</code></pre>
<p>My output should be</p>
... | 4 | 2016-08-28T03:33:08Z | 39,190,492 | <p>Here is an alternative solution which uses <a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.DataFrame.select_dtypes.html" rel="nofollow">select_dtypes()</a> method:</p>
<pre><code>In [41]: df[(df.select_dtypes(include=['number']) != 0).any(1)]
Out[41]:
0 1 2 3 4 5 6 7
1 ... | 2 | 2016-08-28T10:50:09Z | [
"python",
"pandas",
"dataframe"
] |
How to I get python2.7 to be the default option when I call python on terminal? | 39,187,797 | <p>I recently installed the anaconda package while following a tutorial on data science from the guys at dataquest.io and after my install when I type "python" on the terminal I start Python 3 instead of 2.7.</p>
<p>How do I get "python" to open up python 2.7 again?</p>
<p>When I type</p>
<pre><code>which python
</c... | 1 | 2016-08-28T03:35:11Z | 39,187,820 | <p>I was playing around with this some time ago and seem to remember that in my PATH variable in Windows (assuming Windows) - the PATH variable will be read such that the first python key is taken as the default. So in Win 10, I pushed the one I want to the very top of the list and that worked for me.</p>
| 0 | 2016-08-28T03:41:24Z | [
"python",
"python-2.7"
] |
How to I get python2.7 to be the default option when I call python on terminal? | 39,187,797 | <p>I recently installed the anaconda package while following a tutorial on data science from the guys at dataquest.io and after my install when I type "python" on the terminal I start Python 3 instead of 2.7.</p>
<p>How do I get "python" to open up python 2.7 again?</p>
<p>When I type</p>
<pre><code>which python
</c... | 1 | 2016-08-28T03:35:11Z | 39,188,641 | <p>Seems has been updated your default anaconda and python folder to python 3.</p>
<p>Easy way is to remove <code>anaconda</code> folder listed and download python 2.7.11 from anaconda and reinstall.</p>
<p>In case you have anaconda and anaconda3 in your system than you can update the path according with your needs: ... | 0 | 2016-08-28T06:38:33Z | [
"python",
"python-2.7"
] |
How to I get python2.7 to be the default option when I call python on terminal? | 39,187,797 | <p>I recently installed the anaconda package while following a tutorial on data science from the guys at dataquest.io and after my install when I type "python" on the terminal I start Python 3 instead of 2.7.</p>
<p>How do I get "python" to open up python 2.7 again?</p>
<p>When I type</p>
<pre><code>which python
</c... | 1 | 2016-08-28T03:35:11Z | 39,191,907 | <p>You can create a <em>soft link</em> from <code>python</code> to <code>python2.7,</code> namely:</p>
<pre><code>$ pushd /bin && ln -s /bin/python python2.7
$ ls -ls `which python`
1 lrwxrwxrwx 1 Administrator None 13 Feb 25 2016 /bin/python -> python2.7
</code></pre>
| 0 | 2016-08-28T13:43:15Z | [
"python",
"python-2.7"
] |
url_for() paramater was ignored in flask | 39,187,809 | <p>My route method is:</p>
<pre><code>@app.route('/movie/')
def movie(page_num=1):
#...detail skiped...
</code></pre>
<p>And my template is:</p>
<pre><code><li><a href="{{ url_for('movie',page_num=page_num) }}">{{ page_num }}</a></li>
</code></pre>
<p>When I click the link,the address bar sh... | 0 | 2016-08-28T03:38:02Z | 39,189,804 | <p>Since you skipped the code of your function it's hard to say what's wrong. But I suspect that you just don't catch GET parameters correctly. To do this you can either use <a href="http://flask.pocoo.org/docs/0.11/quickstart/#variable-rules" rel="nofollow">variable rules</a> with dynamic name component in your route;... | 1 | 2016-08-28T09:26:02Z | [
"python",
"flask",
"url-for"
] |
Scikit-learn script giving vastly different results than the tutorial, and gives an error when I change the dataframes | 39,187,875 | <p>I'm working through a tutorial that has this section:</p>
<pre><code>>>> import numpy as np
>>> import pandas as pd
>>> from sklearn.feature_extraction.text import TfidfVectorizer
>>> from sklearn.linear_model.logistic import LogisticRegression
>>> from sklearn.cross_val... | 0 | 2016-08-28T03:58:18Z | 39,197,222 | <p>The error at the end of the stacktrace is the key to understand what's going on here.</p>
<blockquote>
<p>ValueError: pos_label=1 is not a valid label: array(['ham', 'spam'],
dtype='|S4')</p>
</blockquote>
<p>You're trying to score your model with precision and recall. Recall that these scoring methods... | 1 | 2016-08-29T01:02:30Z | [
"python",
"csv",
"pandas",
"dataframe",
"scikit-learn"
] |
What is the difference between subprocess.popen and subprocess.run | 39,187,886 | <p>I'm new to the <code>subprocess</code> module and the ducumentation leaves me wondering what the difference is between <code>subprocess.popen</code> and <code>subprocess.run</code>. Is there a difference in what the command does? Is one just newer? Which is better to use? </p>
| 0 | 2016-08-28T04:00:30Z | 39,187,984 | <p><code>subprocess.run</code> <a href="https://docs.python.org/3/library/subprocess.html#subprocess.run" rel="nofollow">was added in Python 3.5</a> as a simplification over <code>subprocess.Popen</code> when you just want to execute a command and wait until it finishes, but you don't want to do anything else meanwhile... | 1 | 2016-08-28T04:23:27Z | [
"python"
] |
HackerRank Project Puler #1 | 39,187,952 | <p>What is wrong with this code? It is not passing case 2 & 3 on HackerRank.</p>
<pre><code>T=long(input())
while T>0:
N=long(input())
sum=0
for i in range (1,N):
if i%3==0 or i%5==0:
sum+=i
print (sum)
T-=1
</code></pre>
<p>I'm new in programming and can't figure out wh... | -2 | 2016-08-28T04:17:15Z | 39,188,199 | <p>There are couple of issues with the code. First since you're using <code>long</code> I guess you're running it on Python 2. On Python 2 <a href="https://docs.python.org/2/library/functions.html#range" rel="nofollow"><code>range</code></a> will generate a <code>list</code> and you'll run out of memory since problem d... | 0 | 2016-08-28T05:08:00Z | [
"python"
] |
How to select Python Tuple/Dictionary Values where Index > x | 39,187,958 | <p>How do you select python Tuple/Dictionary values where the index is greater than some number. I would think the code should look similar to the following assuming we create a Tuple:</p>
<p><code>dt = (100, 200, 300,400)
dt[dt.index > 1]
</code></p>
| 0 | 2016-08-28T04:18:56Z | 39,187,993 | <p>You could just slice the tuple. </p>
<pre><code>>>> dt = (100, 200, 300,400)
>>> dt[2:]
(300, 400)
</code></pre>
| 3 | 2016-08-28T04:24:22Z | [
"python"
] |
How to select Python Tuple/Dictionary Values where Index > x | 39,187,958 | <p>How do you select python Tuple/Dictionary values where the index is greater than some number. I would think the code should look similar to the following assuming we create a Tuple:</p>
<p><code>dt = (100, 200, 300,400)
dt[dt.index > 1]
</code></p>
| 0 | 2016-08-28T04:18:56Z | 39,188,083 | <p>You have to use : instead of > in tuples. like the answer ahsanul haque provided. thumbs up for him.</p>
| 1 | 2016-08-28T04:43:13Z | [
"python"
] |
Python Conjecture | 39,188,001 | <p>recently I have been trying to make a spin-off of Collatz conjecture using python 3.0. The program works as it should with positive integers, but it will not work with negative integers. In the program I check if the number is negative and if so I square it, and then proceed with collatz, rules. Unfortuanitly it giv... | -1 | 2016-08-28T04:25:46Z | 39,189,170 | <p>In the mapping used by the Collatz conjecture, a positive value always maps to another positive value. So you only need to check for negative values as part of your initialisation:</p>
<pre><code>number = input("Enter any integer: ")
count = 0
try:
number = int(number)
except ValueError:
print("Invalid Inpu... | 1 | 2016-08-28T08:01:32Z | [
"python",
"python-3.x",
"sys"
] |
How to break out of function and back into loop? | 39,188,042 | <p>I am currently making a web builder where it will generate a random gif based on the GIPHY API. I am having a problem where I test a case on when the api returns with 0 results.</p>
<pre><code>def get_image_link(link):
global flag
set_count = 0
r = requests.get(link)
api_response = json.loads(r.text)
response = api... | 1 | 2016-08-28T04:32:41Z | 39,188,060 | <p>You can move catching exception outside the function i.e:</p>
<pre><code>while not flag:
try:
get_image_link(get_random_query())
except TypeError:
flag = False
print('TypeError... rerunning application...')
pass
</code></pre>
| 2 | 2016-08-28T04:36:26Z | [
"python"
] |
How to break out of function and back into loop? | 39,188,042 | <p>I am currently making a web builder where it will generate a random gif based on the GIPHY API. I am having a problem where I test a case on when the api returns with 0 results.</p>
<pre><code>def get_image_link(link):
global flag
set_count = 0
r = requests.get(link)
api_response = json.loads(r.text)
response = api... | 1 | 2016-08-28T04:32:41Z | 39,188,142 | <p>Reset flag to false! </p>
<pre><code>try:
flag = True
return response[random_gif_num]['images']['original']['url']
except TypeError:
flag = false
print(TypeError + '... rerunning application...')
pass
</code></pre>
| 2 | 2016-08-28T04:55:46Z | [
"python"
] |
Turn list of JSON objects into Django model isntances | 39,188,070 | <p>I have a huge array of JSON objects in a json file. some objects have more keys than others, but they are all keys that are fields in a model class that I have. I am wondering, what is the best way to iterate over each JSON object to create a model instance with the data from that object, creating null values for an... | 1 | 2016-08-28T04:38:39Z | 39,188,527 | <p><code>hasattr</code> and <code>setattr</code> can be very useful to solve your problem. (<a href="https://docs.python.org/3/library/functions.html#hasattr" rel="nofollow">docs</a>)</p>
<pre><code>def convert(jsonObject, model):
modelObject = model()
for key in jsonObject:
if hasattr(modelObject, key... | 2 | 2016-08-28T06:18:09Z | [
"python",
"json",
"django",
"model"
] |
Running Flask with Gunicorn raises TypeError: index() takes 0 positional arguments but 2 were given | 39,188,136 | <p>I'm trying to run a Flask app with Gunicorn. When I run <code>gunicorn app:index</code>, I get the error <code>TypeError: index() takes 0 positional arguments but 2 were given</code>. None of the examples I've seen show <code>index</code> needing two parameters. What does this error mean? How do I run Flask with... | 1 | 2016-08-28T04:54:21Z | 39,190,113 | <p>You have to pass a Flask instance to <code>gunicorn</code>, not a function name like you did with <code>index</code>. So if your app saved as <code>app.py</code>, then you have to run <code>gunicorn</code> as follows:</p>
<pre><code>$ gunicorn --bind 127.0.0.1:8000 app:app
</code></pre>
| 1 | 2016-08-28T10:02:17Z | [
"python",
"flask",
"gunicorn"
] |
Get weekend timestamp in python | 39,188,137 | <p>I have to convert get weekend timestamp from php to python. I google many times but couldn't find the answer.
in php I can do</p>
<pre><code>endOfWeek = strtotime('next saturday, 11:59:59pm America/Los_Angeles');
</code></pre>
<p>Do you guys know how to do the thing like that in python pls help me out</p>
| -1 | 2016-08-28T04:54:23Z | 39,188,928 | <p>You can use the <a href="https://dateutil.readthedocs.io/en/stable/" rel="nofollow">dateutil</a> package. </p>
<pre><code>from dateutil.relativedelta import *
from datetime import *
from dateutil.tz import *
today = datetime.now(tzutc())
new_time = today+relativedelta(weekday=FR, hours=11, minutes=59, seconds=00)
n... | 0 | 2016-08-28T07:24:33Z | [
"python",
"timestamp"
] |
Get weekend timestamp in python | 39,188,137 | <p>I have to convert get weekend timestamp from php to python. I google many times but couldn't find the answer.
in php I can do</p>
<pre><code>endOfWeek = strtotime('next saturday, 11:59:59pm America/Los_Angeles');
</code></pre>
<p>Do you guys know how to do the thing like that in python pls help me out</p>
| -1 | 2016-08-28T04:54:23Z | 39,199,473 | <p>@Jose
Yeah Thank you. I seen work in local for me. But we plan to use Python on Google App Engine and It not allow use extend library. But I find how to do it use standard date, time modules</p>
<blockquote>
<pre><code> year_no = datetime.datetime.utcnow().isocalendar(0)
week_no = datetime.datetime.utcnow().... | 0 | 2016-08-29T06:04:55Z | [
"python",
"timestamp"
] |
only rotate part of image python | 39,188,198 | <p>Can someone tell me how to rotate only part of an image like this:</p>
<p><a href="http://i.stack.imgur.com/8MEVW.jpg" rel="nofollow"><img src="http://i.stack.imgur.com/8MEVW.jpg" alt="this"></a></p>
<p>How to find coordinate / center of this image:</p>
<p><a href="http://i.stack.imgur.com/PxGtN.png" rel="nofollo... | 2 | 2016-08-28T05:07:45Z | 39,188,320 | <p>You can solve this problem as such. Say you have <code>img = Image.open("nime1.png")</code></p>
<ol>
<li>Create a copy of the image using img2 = img.copy()</li>
<li>Create a crop of img2 at the desired location using img2.crop(). You can read how to do this <a href="http://stackoverflow.com/questions/890051/how-do-... | 0 | 2016-08-28T05:35:34Z | [
"python",
"image",
"rotation",
"python-imaging-library",
"python-3.4"
] |
only rotate part of image python | 39,188,198 | <p>Can someone tell me how to rotate only part of an image like this:</p>
<p><a href="http://i.stack.imgur.com/8MEVW.jpg" rel="nofollow"><img src="http://i.stack.imgur.com/8MEVW.jpg" alt="this"></a></p>
<p>How to find coordinate / center of this image:</p>
<p><a href="http://i.stack.imgur.com/PxGtN.png" rel="nofollo... | 2 | 2016-08-28T05:07:45Z | 39,188,324 | <p>You can crop an area of the picture as a new variable. In this case, I cropped a 120x120 pixel box out of the original image. It is rotated by 90 and then pasted back on the original. </p>
<pre><code>from PIL import Image
img = Image.open('./image.jpg')
sub_image = img.crop(box=(200,0,320,120)).rotate(90)
img.pa... | 0 | 2016-08-28T05:37:07Z | [
"python",
"image",
"rotation",
"python-imaging-library",
"python-3.4"
] |
Python program with arguments on Windows | 39,188,406 | <p>How to run this program saved in the file test.py on Windows XP with python 2.7 installed.</p>
<pre><code>import argparse
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('integers', metavar='N', type=int, nargs='+',help='an integer for the accumulator')
parser.add_argument... | 0 | 2016-08-28T05:56:38Z | 39,188,473 | <p>This is just me being naive, but considering the short error message you posted...</p>
<p>Any chance you're getting this code off some book and try to run this on a command line?</p>
<p>The book uses <code>$</code> to mark command line/terminal commands, but the character is actually not part of the syntax or comm... | 0 | 2016-08-28T06:10:10Z | [
"python",
"argparse"
] |
Python program with arguments on Windows | 39,188,406 | <p>How to run this program saved in the file test.py on Windows XP with python 2.7 installed.</p>
<pre><code>import argparse
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('integers', metavar='N', type=int, nargs='+',help='an integer for the accumulator')
parser.add_argument... | 0 | 2016-08-28T05:56:38Z | 39,188,523 | <p>I tried running your script at the command line and it works perfectly:</p>
<pre><code>$ python arg.py 1 2 3 4 --sum
10
</code></pre>
<p>In the above, the <code>$</code> is the shell's prompt. What I entered is <code>python arg.py 1 2 3 4 --sum</code>. It works.</p>
<p>Now, let's do what I suspect that you are ... | 3 | 2016-08-28T06:17:34Z | [
"python",
"argparse"
] |
Python program with arguments on Windows | 39,188,406 | <p>How to run this program saved in the file test.py on Windows XP with python 2.7 installed.</p>
<pre><code>import argparse
parser = argparse.ArgumentParser(description='Process some integers.')
parser.add_argument('integers', metavar='N', type=int, nargs='+',help='an integer for the accumulator')
parser.add_argument... | 0 | 2016-08-28T05:56:38Z | 39,193,793 | <p>Your <code>test</code> script is the first example on the Python argparse documentation. <a href="https://docs.python.org/3/library/argparse.html" rel="nofollow">https://docs.python.org/3/library/argparse.html</a></p>
<p>Your comment with new lines added is</p>
<pre><code>Python 2.7.8 (default, Jun 30 2014, 16:0... | 0 | 2016-08-28T17:09:21Z | [
"python",
"argparse"
] |
Speech recognition not working in ubuntu | 39,188,531 | <p>I am starting a work which needs to convert audio into text. I am using the speechrecognition library of python. I saw a tutorial on github on how to use it. The program is not bale to recognise my voice through microphone.</p>
<p>I am using python 2.7 on ubuntu 16.04.</p>
<p>Code:</p>
<pre><code>import speech_re... | 4 | 2016-08-28T06:19:00Z | 39,232,186 | <p>I couldn't get <code>PocketSphinx</code> module installed , running into issues.
But if I switch <code>recognize_sphinx</code> with <code>recognize_google</code>, its working for me.</p>
<p>Here is your modified code.</p>
<pre><code>import speech_recognition as sr
# obtain audio from the microphone
r = sr.Recogni... | 1 | 2016-08-30T15:58:09Z | [
"python",
"speech-recognition",
"speech-to-text"
] |
precision and recall on biased data set | 39,188,687 | <p>Suppose a two class classification problem. One class has more than 95% of labelled data, and the other class has 5% of labelled data. The two class are very biased.</p>
<p>I am doing class validation to evaluate different classifiers, I found if a classifier intentionally to predict to the class which has majority... | 0 | 2016-08-28T06:45:56Z | 39,188,751 | <p>This is a common problem in statistics, thus you will find plenty of resources in the internet. Check, e.g., <a href="http://machinelearningmastery.com/tactics-to-combat-imbalanced-classes-in-your-machine-learning-dataset/" rel="nofollow">8 Tactics To Combat Imbalanced Training Data</a>.</p>
<p>The probably easie... | 3 | 2016-08-28T06:57:49Z | [
"python",
"python-2.7",
"machine-learning",
"scikit-learn",
"precision-recall"
] |
Trying to understand Python loop using underscore and input | 39,188,827 | <p>One more tip - if anyone is learning Python on HackerRank, knowing this is critical for starting out.</p>
<p>I'm trying to understand this code:</p>
<pre><code> stamps = set()
for _ in range(int(raw_input())):
print 'underscore is', _
stamps.add(raw_input().strip())
print stamps
</co... | 2 | 2016-08-28T07:10:21Z | 39,188,897 | <p><a href="http://stackoverflow.com/a/5893946/918959">ngoghlan's answer</a> lists 3 conventional uses for <code>_</code> in Python:</p>
<blockquote>
<ol>
<li>To hold the result of the last executed statement in an interactive
interpreter session. This precedent was set by the standard CPython
interpreter, and... | 3 | 2016-08-28T07:20:54Z | [
"python",
"loops",
"input"
] |
Trying to understand Python loop using underscore and input | 39,188,827 | <p>One more tip - if anyone is learning Python on HackerRank, knowing this is critical for starting out.</p>
<p>I'm trying to understand this code:</p>
<pre><code> stamps = set()
for _ in range(int(raw_input())):
print 'underscore is', _
stamps.add(raw_input().strip())
print stamps
</co... | 2 | 2016-08-28T07:10:21Z | 39,188,899 | <p>The underscore is like a normal variable in your program.</p>
| 1 | 2016-08-28T07:21:04Z | [
"python",
"loops",
"input"
] |
Trying to understand Python loop using underscore and input | 39,188,827 | <p>One more tip - if anyone is learning Python on HackerRank, knowing this is critical for starting out.</p>
<p>I'm trying to understand this code:</p>
<pre><code> stamps = set()
for _ in range(int(raw_input())):
print 'underscore is', _
stamps.add(raw_input().strip())
print stamps
</co... | 2 | 2016-08-28T07:10:21Z | 39,217,043 | <p>For anyone that is trying to understand how underscore and input works in a loop - after spending quite sometime debugging and printing - here's the code that made me understand what was going on.</p>
<pre><code> for _ in range(int(raw_input())):
print raw_input()
</code></pre>
<p>User input:</p>
<pre>... | 0 | 2016-08-30T00:16:32Z | [
"python",
"loops",
"input"
] |
Check if a process is still running | 39,188,869 | <p>I have the following problem:</p>
<p>I need my Python script run a bash script. In case the bash script is running more than let's say 10 seconds, I need to kill it. This is what I have so far:</p>
<pre><code>cmd = ["bash", "script.sh", self.get_script_path()]
process = subprocess.Popen(cmd)
time.sleep(10) # pro... | 1 | 2016-08-28T07:16:43Z | 39,188,887 | <p>I am using command stop process_name on ubuntu for stop my process.
May it will helpful.</p>
| -3 | 2016-08-28T07:19:54Z | [
"python",
"linux",
"bash",
"process",
"psutil"
] |
Check if a process is still running | 39,188,869 | <p>I have the following problem:</p>
<p>I need my Python script run a bash script. In case the bash script is running more than let's say 10 seconds, I need to kill it. This is what I have so far:</p>
<pre><code>cmd = ["bash", "script.sh", self.get_script_path()]
process = subprocess.Popen(cmd)
time.sleep(10) # pro... | 1 | 2016-08-28T07:16:43Z | 39,189,189 | <p>I think the <a href="http://linux.die.net/man/1/timeout" rel="nofollow"><code>timeout</code></a> command is perfect for you. From the doc page:</p>
<blockquote>
<h2>Synopsis</h2>
<p><strong>timeout</strong> <em>[OPTION] NUMBER[SUFFIX] COMMAND [ARG]...</em><br/>
<strong>timeout</strong> <em>[OPTION]</em></p... | 0 | 2016-08-28T08:03:28Z | [
"python",
"linux",
"bash",
"process",
"psutil"
] |
Check if a process is still running | 39,188,869 | <p>I have the following problem:</p>
<p>I need my Python script run a bash script. In case the bash script is running more than let's say 10 seconds, I need to kill it. This is what I have so far:</p>
<pre><code>cmd = ["bash", "script.sh", self.get_script_path()]
process = subprocess.Popen(cmd)
time.sleep(10) # pro... | 1 | 2016-08-28T07:16:43Z | 39,189,276 | <p>Since you are already using <code>psutil</code> I suggest you replace the calls to the <code>subprocess</code> module with calls to <a href="http://pythonhosted.org/psutil/#psutil.Popen" rel="nofollow"><code>psutil.Popen</code></a>. This class has the same interface of <code>subprocess.Popen</code> but provides all ... | 2 | 2016-08-28T08:15:52Z | [
"python",
"linux",
"bash",
"process",
"psutil"
] |
TFRecordReader in data input pipeline | 39,188,951 | <p>I'm currently stuck with an implementation problem of <code>TFRecordReader</code></p>
<p>This is the setup : </p>
<pre><code>trainQ = tf.train.string_input_producer(fileList)
RecReader = tf.TFRecordReader()
batch_strings = RecReader.read(trainQ)
con,seq=tf.parse_single_sequence_example(batch_strings.value,context_... | 1 | 2016-08-28T07:29:12Z | 39,189,797 | <p>If you want to evaluate an intermediate layer (call it <code>conv3</code>) that depends on the batch input every 100 iterations, you can do the following:</p>
<pre class="lang-py prettyprint-override"><code>for step in range(100000):
if step % 100 != 0:
# only run the training operation
sess.run... | 0 | 2016-08-28T09:25:12Z | [
"python",
"queue",
"tensorflow"
] |
Sublime Text build system for input/output in python | 39,189,125 | <p>I want to use Sublime Text in Ubuntu for python programming and want to write a build system that takes input from a mentioned file and prints output to other mentioned file. I have done same for c++ using this code :</p>
<pre><code>{
"cmd": ["g++ -std=c++11 ${file} -o ${file_path}/${file_base_name} && ... | 0 | 2016-08-28T07:52:15Z | 39,243,853 | <p>Tushar found the solution for himself by modifying the above code like below:</p>
<pre><code>{
"cmd": ["python ${file}<${file_path}/inputf.in>${file_path}/outputf.in"],
"shell":true
}
</code></pre>
| 0 | 2016-08-31T07:57:29Z | [
"python",
"ubuntu",
"sublimetext3"
] |
Python 2.7, i want to get values between = and , in a string without using multiple split. | 39,189,172 | <p>Ex: "name=sam,city=london, age=24,location=abc"
I want to get sam, london, 24 and abc in seperate variables.
Without using split because it results in many useless variables.
Will regular expression help?
Note: The last value will not have ,
In this case no , after abc.
Thank you</p>
| -7 | 2016-08-28T08:01:43Z | 39,189,196 | <p>What's the useless info obtained with split?</p>
<pre><code>In [365]: a = "name=sam,city=london, age=24,location=abc"
In [366]: [x.split('=')[1] for x in a.split(',')]
Out[366]: ['sam', 'london', '24', 'abc']
</code></pre>
<p>Using regex:</p>
<pre><code>In [368]: [x[1] for x in re.findall(r'(\w+=(\w+))', a)]
Out... | 2 | 2016-08-28T08:04:11Z | [
"python"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,305 | <p>You can iterate over the list of results directly:</p>
<pre><code>print([tuple(result['location'].split(',')) for result in obSet['results']])
>> [('9.5142456535', '-83.8011438905'), ('10.2335478381', '-84.8517773638'), ... ]
</code></pre>
| 2 | 2016-08-28T08:20:14Z | [
"python",
"json",
"list-comprehension"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,311 | <pre><code>[tuple(obSet['results'][i]['location'].split(',')) for i in range(n)]
</code></pre>
<p>This will return a list of tuple, elements of the tuples are <code>unicode</code>.</p>
<p>If you want that the elements of tuples as floats, do the following:</p>
<pre><code>[tuple(map(float,obSet['results'][i]['locatio... | 2 | 2016-08-28T08:20:51Z | [
"python",
"json",
"list-comprehension"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,338 | <p>Another way to get list of [long, lat] without list comprehension:</p>
<pre><code>In [14]: map(lambda x: obSet['results'][x]['location'].split(','), range(obSet['total_results']))
Out[14]:
[[u'9.5142456535', u'-83.8011438905'],
[u'10.2335478381', u'-84.8517773638'],
[u'10.3358965682', u'-84.9964271008'],
[u'10.... | 2 | 2016-08-28T08:25:45Z | [
"python",
"json",
"list-comprehension"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,350 | <p>The direct translation of your code into a list comprehension is:</p>
<pre><code>positions = [obSet['results'][i]['location'] for i in range(obSet['total_results'])]
</code></pre>
<p>The <code>obSet['total_results']</code> is informative but not needed, you could just loop over <code>obSet['results']</code> direct... | 2 | 2016-08-28T08:27:52Z | [
"python",
"json",
"list-comprehension"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,361 | <p>To correct way to get <strong>a list of tuples</strong> using list comprehensions would be:</p>
<pre><code>def to_tuple(coords_str):
return tuple(coords_str.split(','))
output_list = [to_tuple(obSet['results'][i]['location']) for i in range(obSet['total_results'])]
</code></pre>
<p>You can of course replace <... | 1 | 2016-08-28T08:29:18Z | [
"python",
"json",
"list-comprehension"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,369 | <p><code>obSet['results']</code> is a list, no need to use <code>range</code> to iterate over it:</p>
<pre><code>for item in obSet['results']:
print(item['location'])
</code></pre>
<p>To make this into list comprehension you can write:</p>
<pre><code>[item['location'] for item in obSet['results']]
</code></pre>
... | 1 | 2016-08-28T08:30:56Z | [
"python",
"json",
"list-comprehension"
] |
Python List comprehension and JSON parsing | 39,189,272 | <p>I'm new to Python and trying to figure out the best way to parse the values of a JSON object into an array, using a list comprehension. </p>
<p>Here is my code - I'm querying the publicly available iNaturalist API and would like to take the JSON object that it returns, so that I take specific parts of the JSON obje... | 0 | 2016-08-28T08:15:22Z | 39,189,407 | <p>Let's try to give this a shot, starting with just 1 location: </p>
<p><code>>>> (long, lat) = obSet['results'][0]['location']</code> </p>
<pre><code>Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: too many values to unpack
</code></pre>
<p>Alright, so th... | 1 | 2016-08-28T08:35:55Z | [
"python",
"json",
"list-comprehension"
] |
Read block Text of a text file python | 39,189,324 | <p><strong>Input File - input.csv</strong></p>
<pre><code>#######A Result:#########
2016-07-27 bar 51 14
2015-06-27 roujri 30 86
#######B Result:#########
2016-08-26 foo 34 83
2016-08-26 foo 34 83
#########################
</code></pre>
<p><strong>Output result</strong> ... | -2 | 2016-08-28T08:23:33Z | 39,189,538 | <p>Throw in a little bit of regex:</p>
<pre><code>$ cat a
#######A Result:#########
2016-07-27 bar 51 14
2015-06-27 roujri 30 86
#######B Result:#########
2016-08-26 foo 34 83
2016-08-26 foo 34 83
#########################
$ cat a.py
import re
col_names = ['abc', 'xyz']
w... | 1 | 2016-08-28T08:55:02Z | [
"python",
"file",
"text",
"block"
] |
pandas plot automatically assigning color to categories | 39,189,368 | <p>I want to do a bar plot my dataframe such that the categorical column ('ad') defines the colors of my bar charts.
This is my data:</p>
<pre><code>"date","shown","clicked","converted","avg_cost_per_click","total_revenue","ad"
2015-10-01,65877,2339,43,0.9,641.62,"ad_group_1"
2015-10-02,65100,2498,38,0.94,756.37,"ad_g... | 0 | 2016-08-28T08:30:52Z | 39,189,874 | <p>You could get distinct colours for each group present in the <code>ad</code> column as shown:</p>
<pre><code>df.set_index(['date'],inplace=True)
# Empty list to append later
grouped_list = []
label_list = []
# Iterating through each group key grouped by ad
for label, key in df.groupby(['ad'])['clicked']:
gro... | 0 | 2016-08-28T09:33:46Z | [
"python",
"pandas",
"matplotlib"
] |
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