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python Programming Glossary: setWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python There are several ways to do this but one way is to set __metaclass__ at the module level. This way all classes of this..
http://stackoverflow.com/questions/107705/python-output-buffering sys.stdout.fileno 'w' 0 Is there any other way to set some global flag in sys sys.stdout programmatically during execution.. process using python u or# usr bin env python u etc or by setting the environment variable PYTHONUNBUFFERED. You could also..
Which Python memory profiler is recommended? [closed] http://stackoverflow.com/questions/110259/which-python-memory-profiler-is-recommended h.heap This gives you some output like this Partition of a set of 132527 objects. Total size 8301532 bytes. Index Count Size..
Why does comparing strings in Python using either '==' or 'is' sometimes produce a different result? http://stackoverflow.com/questions/1504717/why-does-comparing-strings-in-python-using-either-or-is-sometimes-produce result I've got a python program where two variables are set to the value 'public' . In a conditional expression I have the..
Fastest way to list all primes below N in python http://stackoverflow.com/questions/2068372/fastest-way-to-list-all-primes-below-n-in-python of Project Euler's questions. def get_primes n numbers set range n 1 1 primes while numbers p numbers.pop primes.append.. p numbers.pop primes.append p numbers.difference_update set range p 2 n 1 p return primes timeit.Timer stmt 'get_primes.get_primes.. primes timeit.Timer stmt 'get_primes.get_primes 1000000 ' setup 'import get_primes' .timeit 1 1.1499958793645562 Can it be..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained it's handy when you know your function will return a huge set of values that you will only need to read once. To master yield..
Import a module from a relative path http://stackoverflow.com/questions/279237/import-a-module-from-a-relative-path that you want to do this because you need to include a set of modules with your script. I use this in production in several..
What does `if __name__ == “__main__”:` do? http://stackoverflow.com/questions/419163/what-does-if-name-main-do running that module the source file as the main program it sets the special __name__ variable to have a value __main__ . If.. is being imported from another module __name__ will be set to the module's name. In the case of your script let's assume.. python threading_example.py on the command line. After setting up the special variables it will execute the import statement..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code add up fast. What you can do is convert closedlist into a set object. This keeps hashes of its items so the in operator is.. of closedlist is crucial to the algorithm you could use a set for the in operator and keep an parallel list around for your..
How to install pip on windows? http://stackoverflow.com/questions/4750806/how-to-install-pip-on-windows 2012 06 17 install python on windows python windows setuptools pip easy install share improve this question Flying.. Python 2.x and 3.x 32 bit and 64 bit. You need to Install setuptools http www.lfd.uci.edu ~gohlke pythonlibs #setuptools Install.. setuptools http www.lfd.uci.edu ~gohlke pythonlibs #setuptools Install pip http www.lfd.uci.edu ~gohlke pythonlibs #pip..
How do you remove duplicates from a list in Python whilst preserving order? http://stackoverflow.com/questions/480214/how-do-you-remove-duplicates-from-a-list-in-python-whilst-preserving-order in Python whilst preserving order I know that I can use a set to remove duplicates but that destroys the original order. I.. plog uniqifiers benchmark Fastest one def f7 seq seen set seen_add seen.add return x for x in seq if x not in seen and.. If you plan on using this function a lot on the same dataset perhaps you would be better off with an ordered set http code.activestate.com..
How to do relative imports in Python? http://stackoverflow.com/questions/72852/how-to-do-relative-imports-in-python name does not contain any package information e.g. it is set to '__main__' then relative imports are resolved as if the module..
Python: How do I pass a variable by reference? http://stackoverflow.com/questions/986006/python-how-do-i-pass-a-variable-by-reference the_list the_list 'and' 'we' 'can' 'not' 'lie' print 'set to' the_list outer_list 'we' 'like' 'proper' 'English' print.. 'proper' 'English' got 'we' 'like' 'proper' 'English' set to 'and' 'we' 'can' 'not' 'lie' after outer_list 'we' 'like'.. the_string the_string 'In a kingdom by the sea' print 'set to' the_string outer_string 'It was many and many a year ago'..
http://stackoverflow.com/questions/107705/python-output-buffering sys.stdout in an object that flushes after every write Set PYTHONUNBUFFERED env var sys.stdout os.fdopen sys.stdout.fileno..
How to create a DLL with SWIG from Visual Studio 2010 http://stackoverflow.com/questions/11693047/how-to-create-a-dll-with-swig-from-visual-studio-2010 Properties General and set TargetName to _ ProjectName . Set Target Extension to .pyd . Build the Release version of the..
Read the RGB value of a given pixel in Python, Programatically http://stackoverflow.com/questions/138250/read-the-rgb-value-of-a-given-pixel-in-python-programatically the RGBA Value of the a pixel of an image pix x y value # Set the RGBA Value of the image tuple Alternatively look at ImageDraw..
How to execute Python scripts in Windows? http://stackoverflow.com/questions/1934675/how-to-execute-python-scripts-in-windows is directly fixing the relevant registry keys for Python. Set the HKEY_CLASSES_ROOT Applications python26.exe shell open command..
How get sound input from microphone in python, and process it on the fly? http://stackoverflow.com/questions/1936828/how-get-sound-input-from-microphone-in-python-and-process-it-on-the-fly ## ## The script opens an ALSA pcm for sound capture. Set ## various attributes of the capture and reads in a loop ##.. alsaaudio.PCM_CAPTURE alsaaudio.PCM_NONBLOCK # Set attributes Mono 8000 Hz 16 bit little endian samples inp.setchannels..
How can I use a DLL from Python http://stackoverflow.com/questions/252417/how-can-i-use-a-dll-from-python into memory. hllDll ctypes.WinDLL c PComm ehlapi32.dll # Set up prototype and parameters for the desired function call. #.. # This is how you can actually call the DLL function. # Set up the variables and call the Python name with them. p1 ctypes.c_int..
Why does Python print unicode characters when the default encoding is ASCII? http://stackoverflow.com/questions/2596714/why-does-python-print-unicode-characters-when-the-default-encoding-is-ascii 1 aka latin 1 graphic terminals usually have an option to Set Character Encoding in one of their dropdown menus . Note that..
How can I improve my paw detection? http://stackoverflow.com/questions/4087919/how-can-i-improve-my-paw-detection be visible rect.set_visible False for rect in rects # Set the position and size of a rectangle for each paw and display..
What's the proper way to install pip, virtualenv, and distribute for Python? http://stackoverflow.com/questions/4324558/whats-the-proper-way-to-install-pip-virtualenv-and-distribute-for-python environment ENV_OPTS ' no site packages distribute' # Set to whatever python interpreter you want for your first environment..
How do you remove duplicates from a list in Python if the item order is not important? http://stackoverflow.com/questions/479897/how-do-you-remove-duplicates-from-a-list-in-python-if-the-item-order-is-not-impo remove duplicates. I know I can do this from sets import Set ... myHash Set myList but I don't know how to retrieve the list.. I know I can do this from sets import Set ... myHash Set myList but I don't know how to retrieve the list members from..
Regular expression to detect semi-colon terminated C++ for & while loops http://stackoverflow.com/questions/524548/regular-expression-to-detect-semi-colon-terminated-c-for-while-loops routine that does it without using a regular expression Set a position counter pos so that is points to just before the.. just before the opening bracket after your for or while . Set an open brackets counter openBr to 0 . Now keep incrementing..
Django - Set Up A Scheduled Job? http://stackoverflow.com/questions/573618/django-set-up-a-scheduled-job Set Up A Scheduled Job I've been working on a web app using Django..
http://stackoverflow.com/questions/6352740/matplotlib-label-each-bin improve this question Sure To set the ticks just well... Set the ticks see matplotlib.pyplot.xticks or ax.set_xticks . Also.. patches ax.hist data facecolor 'yellow' edgecolor 'gray' # Set the ticks to be at the edges of the bins. ax.set_xticks bins.. ticks to be at the edges of the bins. ax.set_xticks bins # Set the xaxis's tick labels to be formatted with 1 decimal place.....
http://stackoverflow.com/questions/1650591/whether-to-use-set-names to use &ldquo SET NAMES&rdquo In reading High performance MySQL from O'Reilly.. upon the following Another common garbage query is SET NAMES UTF8 which is the wrong way to do things anyway it does.. only the server . I'm a bit confused because I used to put SET NAMES utf8 on the top of every script to let the db know that..
Django + MySQL on Mac OS 10.6.2 Snow Leopard http://stackoverflow.com/questions/1904039/django-mysql-on-mac-os-10-6-2-snow-leopard to the right place for your system PLEASE REMEMBER TO SET A PASSWORD FOR THE MySQL root USER To do so start the server..
MySQL “incorrect string value” error when save unicode string in Django http://stackoverflow.com/questions/2108824/mysql-incorrect-string-value-error-when-save-unicode-string-in-django backend in Django. It's strange. mysql SHOW CHARACTER SET Charset Description Default collation Maxlen ... utf8.. database.table MODIFY COLUMN col VARCHAR 255 CHARACTER SET utf8 COLLATE utf8_general_ci NOT NULL share improve this answer..
Cannot find vcvarsall.bat when running a Python script http://stackoverflow.com/questions/2667069/cannot-find-vcvarsall-bat-when-running-a-python-script Studio 2010 creates the following environment variable SET VS100COMNTOOLS C Program Files Microsoft Visual Studio 10.0.. point to your Visual Studio 2010 common tools folder e.g. SET VS90COMNTOOLS C Program Files Microsoft Visual Studio 10.0 Common7..
error: Unable to find vcvarsall.bat http://stackoverflow.com/questions/2817869/error-unable-to-find-vcvarsall-bat . If you have Visual Studio 2010 installed execute SET VS90COMNTOOLS VS100COMNTOOLS or with Visual Studio 2012 installed.. with Visual Studio 2012 installed Visual Studio Version 11 SET VS90COMNTOOLS VS110COMNTOOLS or with Visual Studio 2013 installed..
Setting smaller buffer size for sys.stdin? http://stackoverflow.com/questions/3670323/setting-smaller-buffer-size-for-sys-stdin if __name__ __main__ keys defaultdict int GET 1 SET 2 CLIENT 1 SERVER 2 #if for line in sys.stdin key None components.. newConn # lastConn newConn if direction CLIENT command SET if components 1 set else GET key components 2 if command SET.. if components 1 set else GET key components 2 if command SET keys key 1 elif direction SERVER command components 1..
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