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python Programming Glossary: followingWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python times. When you do class Foo Bar pass Python does the following Is there a __metaclass__ attribute in Foo If yes create in memory..
Which Python memory profiler is recommended? [closed] http://stackoverflow.com/questions/110259/which-python-memory-profiler-is-recommended to use. At some point in your code you have to write the following from guppy import hpy h hpy print h.heap This gives you some..
Decode HTML entities in Python string? http://stackoverflow.com/questions/2087370/decode-html-entities-in-python-string trying to work out if there is a better way to achieve the following from lxml import html from BeautifulSoup import BeautifulSoup..
Unexpected feature in a Python list of lists http://stackoverflow.com/questions/240178/unexpected-feature-in-a-python-list-of-lists needed to create a list of lists in Python so I typed the following myList 1 4 3 The list looked like this 1 1 1 1 1 1 1 1 1 1 1..
Best way to strip punctuation from a string in Python http://stackoverflow.com/questions/265960/best-way-to-strip-punctuation-from-a-string-in-python import s test_repl as f' .timeit 1000000 This gives the following results sets 19.8566138744 regex 6.86155414581 translate 2.12455511093..
Python “is” operator behaves unexpectedly with integers http://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers operator behaves unexpectedly with integers Why does the following behave unexpectedly in Python a 256 b 256 a is b True # this..
Is there any way to kill a Thread in Python? http://stackoverflow.com/questions/323972/is-there-any-way-to-kill-a-thread-in-python abruptly in python and in any language. Think of the following cases the thread is holding a critical resource that must be.. is busy for long calls and you want to interrupt it. The following code allows with some restrictions to raise an Exception in..
What does ** (double star) and * (star) do for python parameters? http://stackoverflow.com/questions/36901/what-does-double-star-and-star-do-for-python-parameters does double star and star do for python parameters In the following method calls what does the and do for param2 def foo param1..
Python variable scope question http://stackoverflow.com/questions/370357/python-variable-scope-question for many years and recently started learning Python. The following code works as expected in both python 2.5 and 3.0 on OS X if..
Search and replace a line in a file in Python http://stackoverflow.com/questions/39086/search-and-replace-a-line-in-a-file-in-python way to do it. What is the best way to do this within the following code f open file for line in f if line.contains 'foo' newline..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension you want to use any of the list methods. For example the following code won't work def gen return something for something in get_some_stuff..
Does Python have a built in function for string natural sort? http://stackoverflow.com/questions/4836710/does-python-have-a-built-in-function-for-string-natural-sort by which files in Windows are sorted. For instance the following list is naturally sorted what I want 'elm0' 'elm1' 'Elm2' 'elm9'.. this on PyPI called natsort . For your case you can do the following import natsort x 'Elm11' 'Elm12' 'Elm2' 'elm0' 'elm1' 'elm10'..
Timeout on a Python function call http://stackoverflow.com/questions/492519/timeout-on-a-python-function-call making some local xmlrpc calls with a timeout using the following code borrowed from an ActiveState Cookbook recipe def timeout..
Python rounding error with float numbers http://stackoverflow.com/questions/5997027/python-rounding-error-with-float-numbers 0.58 were missing. On investigation I noticed that the following Python code for idelta in range 0 101 1 delta float idelta 100.. in the sense it happens to every integer. So I created the following Python script # usr bin env python2.6 import sys n int sys.argv..
How can I make a chain of function decorators in Python? http://stackoverflow.com/questions/739654/how-can-i-make-a-chain-of-function-decorators-in-python How can I make two decorators in Python that would do the following @makebold @makeitalic def say return Hello which should return..
Simple Digit Recognition OCR in OpenCV-Python http://stackoverflow.com/questions/9413216/simple-digit-recognition-ocr-in-opencv-python data for training i made a small code in OpenCV. It does following things a It loads the image. b Selects the digits obviously..
Python: How do I pass a variable by reference? http://stackoverflow.com/questions/986006/python-how-do-i-pass-a-variable-by-reference parameters are passed by reference or value and the following code produces the unchanged value 'Original' class PassByReference..
Can't run Python from cmd line http://stackoverflow.com/questions/11354090/cant-run-python-from-cmd-line gt Line1 Python hello.py ^ SyntaxError Invalid syntax Following is the script I tried # usr bin python message Hello world print..
how to add http headers to a packet sniffed using scapy http://stackoverflow.com/questions/13017797/how-to-add-http-headers-to-a-packet-sniffed-using-scapy all questions on SO but didn't exactly get a solution. Following is what i have done. def parse pkt if pkt.haslayer TCP and pkt.getlayer..
http://stackoverflow.com/questions/1339293/python-memory-leak-debugging for a full day eats about 6GB of RAM and I start to swap. Following http www.lshift.net blog 2008 11 14 tracing python memory leaks..
Save list of DataFrames to multisheet Excel spreadsheet http://stackoverflow.com/questions/14225676/save-list-of-dataframes-to-multisheet-excel-spreadsheet writer 'sheet1' df2.to_excel writer 'sheet2' writer.save Following this I thought I could write a function which saves a list of..
Can't install PIL after Mac OS X 10.9 http://stackoverflow.com/questions/19532125/cant-install-pil-after-mac-os-x-10-9 library pip osx mavericks share improve this question Following worked for me ln s Applications Xcode.app Contents Developer..
How does zip(*[iter(s)]*n) work in Python? http://stackoverflow.com/questions/2233204/how-does-zipitersn-work-in-python end start chunk_size print L start end # three item chunks Following the values of start and end 0 3 # 1 2 3 3 6 # 4 5 6 6 9 # 7..
http://stackoverflow.com/questions/2554185/match-groups-in-python is an example to clarify my motivation for the question Following perl code if statement ~ I love w print He loves 1 n elsif statement..
Installing psycopg2 (postgresql) in virtualenv on windows http://stackoverflow.com/questions/3030984/installing-psycopg2-postgresql-in-virtualenv-on-windows Refer to this answer instead. I had the same problem. Following the suggestion on the download page of the Windows port for..
What is the best (idiomatic) way to check the type of a Python variable? [duplicate] http://stackoverflow.com/questions/378927/what-is-the-best-idiomatic-way-to-check-the-type-of-a-python-variable from dict Or a class implementing a dict like interface Following code covers first two cases. If you are using Python 2.6 you..
Python CSV error: line contains NULL byte http://stackoverflow.com/questions/4166070/python-csv-error-line-contains-null-byte any way I can get round this problem in Python UPDATE Following @JohnMachin's comment below I tried adding these lines to my..
Mercurial and hgweb on IIS 7.5 - python error http://stackoverflow.com/questions/4355256/mercurial-and-hgweb-on-iis-7-5-python-error following answers http stackoverflow.com questions 2123798 Following the accepted answer I changed my hgweb.cgi to look like this..
python time to age part 2, timezones http://stackoverflow.com/questions/526406/python-time-to-age-part-2-timezones time to age part 2 timezones Following on from my previous question http stackoverflow.com questions..
Why doesn't memory get released to system after large queries (or series of queries) in django? http://stackoverflow.com/questions/5494178/why-doesnt-memory-get-released-to-system-after-large-queries-or-series-of-quer performance that python does NOT release the memory . Following this I naively attempted to see if python would release large..
IronPython: EXE compiled using pyc.py cannot import module “os” http://stackoverflow.com/questions/6195781/ironpython-exe-compiled-using-pyc-py-cannot-import-module-os and prints Hello if I run it with IronPython as ipy Foo.py Following the instructions given in IronPython how to compile exe I compiled..
getting python sequence assignments & unpacking RIGHT http://stackoverflow.com/questions/6967632/getting-python-sequence-assignments-unpacking-right assignment works. Here's an erroneous example a b c XYZ Following the above substitution rules we get the below a b c 'X' 'Y'..
Basic indexing recurrences of a substring within a string (python) http://stackoverflow.com/questions/6987702/basic-indexing-recurrences-of-a-substring-within-a-string-python some code written but I'm not getting the answers I want. Following is what I have written Note I'm aware that there may be easier..
Deploying existing Django app on Heroku http://stackoverflow.com/questions/7974902/deploying-existing-django-app-on-heroku existing Django app on Heroku Following the Heroku tutorial but I have already created a rather complex..
Python Class Members Initialization http://stackoverflow.com/questions/867219/python-class-members-initialization dictionary member of previously initialized instances EDIT Following the answers I now understand that by declaring a data member..
http://stackoverflow.com/questions/8908287/base64-encoding-in-python-3 encoding in Python 3 Following this python example I do import base64 encoded base64.b64encode..
Making Python scripts run on Windows without specifying “.py” extension http://stackoverflow.com/questions/9037346/making-python-scripts-run-on-windows-without-specifying-py-extension type in the script name without the .py and watch it run. Following the various tips on google to do this I do Add the python.exe..
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