¡@
python Programming Glossary: placeCommon pitfalls in Python [duplicate] http://stackoverflow.com/questions/1011431/common-pitfalls-in-python x are treated as different modules . Do not use range in place of lists because range will become an iterator anyway the following..
Source interface with Python and urllib2 http://stackoverflow.com/questions/1150332/source-interface-with-python-and-urllib2 paste and edit the misdesigned code into which you need to place a hook that the original designer didn't cater for or monkey..
Remove items from a list while iterating in Python http://stackoverflow.com/questions/1207406/remove-items-from-a-list-while-iterating-in-python if determine tup code_to_remove_tup What should I use in place of code_to_remove_tup I can't figure out how to remove the item..
Using numpy to build an array of all combinations of two arrays http://stackoverflow.com/questions/1208118/using-numpy-to-build-an-array-of-all-combinations-of-two-arrays to form the cartesian product of. out ndarray Array to place the cartesian product in. Returns out ndarray 2 D array of..
Local variables in Python nested functions http://stackoverflow.com/questions/12423614/local-variables-in-python-nested-functions or scoped_cage function in the loop compilation only takes place once not on each iteration of the loop. share improve this..
http://stackoverflow.com/questions/13058458/python-list-index and when you multiply it you get four pointers to the same place in memory. BUT when you change one of the values then Python..
When is “i += x” different from “i = i + x” in Python? http://stackoverflow.com/questions/15376509/when-is-i-x-different-from-i-i-x-in-python is supposed to be used for modifying mutable objects in place returning the object which was mutated whereas __add__ should..
How do I ensure that re.findall() stops at the right place? http://stackoverflow.com/questions/17765805/how-do-i-ensure-that-re-findall-stops-at-the-right-place do I ensure that re.findall stops at the right place Here is the code I have a ' title aaa title title aaa2 title..
What does plus equals (+=) do in Python? http://stackoverflow.com/questions/2347265/what-does-plus-equals-do-in-python When doing foo something you're modifying the list foo in place thus you don't change the reference that the name foo points.. variable instead of an instance variable modifying in place will affect all instances of that class. But when redefining..
How to initialize a two-dimensional array in Python? http://stackoverflow.com/questions/2397141/how-to-initialize-a-two-dimensional-array-in-python that I initially fill up with the same variable in every place. I came up with this def initialize_twodlist foo twod_list new.. twice twod_list for i in range 0 10 new can be replaced this too for j in range 0 10 with a list new.append foo comprehension..
Is it Pythonic to use bools as ints? http://stackoverflow.com/questions/3174392/is-it-pythonic-to-use-bools-as-ints the capitalization of true and false was all over the place some used all caps some all lowercase some cap initial and so..
Weighted random selection with and without replacement http://stackoverflow.com/questions/352670/weighted-random-selection-with-and-without-replacement random selection with and without replacement Recently I needed to do weighted random selection of elements.. selection of elements from a list both with and without replacement. While there are well known and good algorithms for unweighted.. selection and some for weighted selection without replacement such as modifications of the resevoir algorithm I couldn't..
How can I merge (union) two Python dictionaries in a single expression? http://stackoverflow.com/questions/38987/how-can-i-merge-union-two-python-dictionaries-in-a-single-expression if it returned its result instead of modifying a dict in place. x 'a' 1 'b' 2 y 'b' 10 'c' 11 z x.update y print z None x 'a'..
Remove specific characters from a string in python http://stackoverflow.com/questions/3939361/remove-specific-characters-from-a-string-in-python nothing to the string for char in line if char in . line.replace char '' python string immutability share improve this question.. can't be changed . Because of this the effect of line.replace ... is just to create a new string rather than changing the.. and newer Python 2.x versions p or regular expression replacement with re.sub import re line re.sub ' @# ' '' line The characters..
http://stackoverflow.com/questions/886221/does-django-scale largest sites built on Django today There isn't any single place that collects information about traffic on Django built sites..
local var referenced before assignment http://stackoverflow.com/questions/8934772/local-var-referenced-before-assignment modify and access the first element of that list in every place where you had previously just used the variable name def funcA..
Python: simple list merging based on intersections http://stackoverflow.com/questions/9110837/python-simple-list-merging-based-on-intersections of the reliability of the method before pushing it in its place within a large code as a module. Simply for now Niklas 's method..
Making a flat list out of list of lists in Python [duplicate] http://stackoverflow.com/questions/952914/making-a-flat-list-out-of-list-of-lists-in-python one list once and copies each item over from its original place of residence to the result list also exactly once. share improve..
Run python script as daemon at boot time (Ubuntu) http://stackoverflow.com/questions/13718821/run-python-script-as-daemon-at-boot-time-ubuntu to make .py file be run by task handler such as upstart Place shebang as first line # usr bin env python Allow execution permissions..
Python Tkinter scrollbar for frame http://stackoverflow.com/questions/16188420/python-tkinter-scrollbar-for-frame you must use grid. There is no requirement to use grid. Place grid and pack can all be used. It's simply that some are more..
Nicely representing a floating-point number in python http://stackoverflow.com/questions/2663612/nicely-representing-a-floating-point-number-in-python zeros on the end result '0' shift sigfig 1 elif 0 shift # Place the decimal point in between digits result.insert shift 1 '.'..
Change Django ModelChoiceField to show users' full names rather than usernames http://stackoverflow.com/questions/3167824/change-django-modelchoicefield-to-show-users-full-names-rather-than-usernames that will return whatever label you'd like. Place something like this within a fields.py or wherever applicable...
know filename:line_no where an import to my_module was made http://stackoverflow.com/questions/5603321/know-filenameline-no-where-an-import-to-my-module-was-made file module import calling share improve this question Place this in your top level module code import traceback last_frame..
How to install lxml for python without administative rights on linux? http://stackoverflow.com/questions/5976030/how-to-install-lxml-for-python-without-administative-rights-on-linux PYTHONPATH environment variables to point into HOME root . Place these in your ~ .bashrc or equivalent so they are permanent..
Python: Clicking a button with urllib or urllib2 http://stackoverflow.com/questions/7630795/python-clicking-a-button-with-urllib-or-urllib2 sending a request to the button is INPUT type submit value Place a Bid How would I go about doing this Is it possible to click.. input type text name in1 value abc INPUT type submit value Place a Bid form Python # parse the page HTML with the form to get..
|