python Programming Glossary: shouldWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python example where you decide that all classes in your module should have their attributes written in uppercase. There are several.. you don't Metaclasses are deeper magic than 99 of users should ever worry about. If you wonder whether you need them you don't..
Remove items from a list while iterating in Python http://stackoverflow.com/questions/1207406/remove-items-from-a-list-while-iterating-in-python tup in somelist if determine tup code_to_remove_tup What should I use in place of code_to_remove_tup I can't figure out how.. comment says that he wants the 'determine' to say what should be deleted. That would then be just. somelist x for x in somelist..
Difference between __str__ and __repr__ in Python http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python means in simple terms almost every object you implement should have a functional __repr__ that 䏭 usable for understanding the.. Implement __repr__ for any class you implement. This should be second nature. Implement __str__ if you think it would be..
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 . title ' s .group 1 'aaa' If you wanted all tags then you should consider changing it to be non greedy ie . print re.findall..
Python “is” operator behaves unexpectedly with integers http://stackoverflow.com/questions/306313/python-is-operator-behaves-unexpectedly-with-integers just get back a reference to the existing object. So it should be possible to change the value of 1. I suspect the behaviour..
How do you split a list into evenly sized chunks in Python? http://stackoverflow.com/questions/312443/how-do-you-split-a-list-into-evenly-sized-chunks-in-python this for lists of any length e.g. using generators. This should work l range 1 1000 print chunks l 10 1..10 11..20 .. 991..999..
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 def stopped self return self._stop.isSet In this code you should call stop on the thread when you want it to exit and wait for.. for the thread to exit properly using join . The thread should check the stop flag at regular intervals. They are cases however.. a number greater than one you're in trouble # and you should call it again with exc NULL to revert the effect ctypes.pythonapi.PyThreadState_SetAsyncExc..
http://stackoverflow.com/questions/3455456/what-kinds-of-patterns-could-i-enforce-on-the-code-to-make-it-easier-to-translat I am starting with are PHP and Python Python to PHP should be easier to start with but ideally I would be able to add other.. design pattern and follow strict coding conventions. This should make translation somewhat easier. I am also looking at IOC and.. generated code and fix problems. Ideally the translator should flag problematic translations. Before you ask What the hell..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python 'image10' It will work on anything that's iterable which should include Django's iterable QuerySet s which it appears that you're.. itertools.chain.from_iterable avoids the unpacking and you should use that to avoid magic but the timeit app shows negligible..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code now . I'll update this if and when it finishes. What should I do to improve this code Mostly performance wise any other..
How to install pip on windows? http://stackoverflow.com/questions/4750806/how-to-install-pip-on-windows to your path Start Edit environment variables . Now you should be able to run pip from the command line. Try installing a package..
How can you profile a Python script? http://stackoverflow.com/questions/582336/how-can-you-profile-a-python-script function was called making it easy to determine where you should make optimizations. You can call it from within your code or..
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 following @makebold @makeitalic def say return Hello which should return b i Hello i b I'm not trying to make HTML this way in..
Proper way to use **kwargs in Python http://stackoverflow.com/questions/1098549/proper-way-to-use-kwargs-in-python what is the best way to set default values or is there one Should I just access it as a dictionary Use get function class ExampleClass..
Tabs versus spaces in Python programming http://stackoverflow.com/questions/119562/tabs-versus-spaces-in-python-programming spaces instead of tabs for Python Or is it simply not true Should I switch my editor to insert spaces instead of tabs right away..
Should Python import statements always be at the top of a module? http://stackoverflow.com/questions/128478/should-python-import-statements-always-be-at-the-top-of-a-module Python import statements always be at the top of a module PEP..
Convert Python dict to object? http://stackoverflow.com/questions/1305532/convert-python-dict-to-object an object. For example d 'a' 1 'b' 'c' 2 'd' hi 'foo' bar Should be accessible in this way x dict2obj d x.a 1 x.b.c 2 x.d 1 .foo..
Python string 'join' is faster(?) than '+', but what's wrong here? http://stackoverflow.com/questions/1349311/python-string-join-is-faster-than-but-whats-wrong-here using Python 3.1.1 and that provides ' ' as most efficient Should I use ' ' as an alternative to join Or have I done something..
Should you always favor xrange() over range()? http://stackoverflow.com/questions/135041/should-you-always-favor-xrange-over-range you always favor xrange over range Why or why not python range..
Elegant setup of Python logging in Django http://stackoverflow.com/questions/1598823/elegant-setup-of-python-logging-in-django should be able to find its logger with little effort. Should be easily applicable to command line modules. Parts of the system..
Should I use urllib or urllib2 or requests? http://stackoverflow.com/questions/2018026/should-i-use-urllib-or-urllib2-or-requests I use urllib or urllib2 or requests In Python 2.5 should I..
Solving embarassingly parallel problems using Python multiprocessing http://stackoverflow.com/questions/2359253/solving-embarassingly-parallel-problems-using-python-multiprocessing about this problem. Bonus points for addressing any all Should I have child processes for reading in the data and placing it.. process do this without having to wait for all the results Should I use a processes pool for the sum operations If yes what method.. know all the input and output will fit in system memory . Should we change the algorithm in any way e.g. not run any processes..
Python: Once and for all. What does the Star operator mean in Python? [duplicate] http://stackoverflow.com/questions/2921847/python-once-and-for-all-what-does-the-star-operator-mean-in-python Is it fast or not When is it useful and when is it not Should it be used in a function declaration or in a call python syntax..
How does Python's super() work with multiple inheritance? http://stackoverflow.com/questions/3277367/how-does-pythons-super-work-with-multiple-inheritance class Third First Second def __init__ self print third Should Third's MRO be First Second or Second First There's no obvious..
http://stackoverflow.com/questions/364802/generator-comprehension 9 filtered_gen.next 6 filtered_gen.next # Should be all out of items and give an error Traceback most recent..
socket.shutdown vs socket.close http://stackoverflow.com/questions/409783/socket-shutdown-vs-socket-close data is still undelivered the system discards the data. Should the application program have no use for any pending data it..
Detect duplicate MP3 files with different bitrates and/or different ID3 tags? http://stackoverflow.com/questions/476227/detect-duplicate-mp3-files-with-different-bitrates-and-or-different-id3-tags if ID3 tags have influence in generating the MD5 checksum. Should I re encode MP3 files that have a different bitrate and then..
Python rounding error with float numbers http://stackoverflow.com/questions/5997027/python-rounding-error-with-float-numbers than the actual number. Read What Every Computer Scientist Should Know About Floating Point Arithmetic . share improve this answer..
int((0.1+0.7)*10) = 7 in several languages. How to prevent this? http://stackoverflow.com/questions/6439140/int0-10-710-7-in-several-languages-how-to-prevent-this improve this question What Every Computer Scientist Should Know About Floating Point Arithmetic share improve this answer..
Python out of memory on large CSV file (numpy) http://stackoverflow.com/questions/8956832/python-out-of-memory-on-large-csv-file-numpy numpy and Python compiled in 64bit mode. How do I fix this Should I try a distributed approach just for the memory management..
Numpy: Should I use newaxis or None? http://stackoverflow.com/questions/944863/numpy-should-i-use-newaxis-or-none Should I use newaxis or None In numpy one can use the 'newaxis' object..
|