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python Programming Glossary: you'reHow to generate all permutations of a list in Python http://stackoverflow.com/questions/104420/how-to-generate-all-permutations-of-a-list-in-python improve this question Starting with Python 2.6 and if you're on Python 3 you have a standard library tool for this itertools.permutations.. standard library tool for this itertools.permutations . If you're using an older Python for some reason or are just curios to..
Python List Comprehension Vs. Map http://stackoverflow.com/questions/1247486/python-list-comprehension-vs-map map may be microscopically faster in some cases when you're NOT making a lambda for the purpose but using the same function..
Python: Difference between class and instance attributes http://stackoverflow.com/questions/207000/python-difference-between-class-and-instance-attributes vs. class B object def __init__ self foo 5 self.foo foo If you're creating a lot of instances is there any difference in performance..
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 improve this question From an efficiency perspective you're not going to beat translate it's performing raw string operations..
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 id elif res 1 # if it returns a number greater than one you're in trouble # and you should call it again with exc NULL to revert..
In a django form, How to make a field readonly (or disabled) so that it cannot be edited? http://stackoverflow.com/questions/324477/in-a-django-form-how-to-make-a-field-readonly-or-disabled-so-that-it-cannot-b instance and instance.pk with another condition indicating you're editing. You could also set the attribute disabled on the input..
*args and **kwargs? [duplicate] http://stackoverflow.com/questions/3394835/args-and-kwargs but there's no need to use them. You would use args when you're not sure how many arguments might be passed to your function..
Flattening a shallow list in Python http://stackoverflow.com/questions/406121/flattening-a-shallow-list-in-python list comprehension share improve this question If you're just looking to iterate over a flattened version of the data.. include Django's iterable QuerySet s which it appears that you're using in the question. Edit This is probably as good as a reduce..
Using global variables in a function other than the one that created them http://stackoverflow.com/questions/423379/using-global-variables-in-a-function-other-than-the-one-that-created-them Python wants to make sure that you really know that's what you're playing with by explicitly requiring the global keyword. See..
How to improve performance of this code? http://stackoverflow.com/questions/4295799/how-to-improve-performance-of-this-code so easy to use you forget that it's linear search and when you're doing linear searches on lists it can add up fast. What you..
How to install pip on windows? http://stackoverflow.com/questions/4750806/how-to-install-pip-on-windows proxy_url port http username password@proxy_url port If you're really unlucky your proxy might be a Microsoft NTLM proxy. Free..
Generator Expressions vs. List Comprehension http://stackoverflow.com/questions/47789/generator-expressions-vs-list-comprehension added to lists Basically use a generator expression if all you're doing is iterating once. If you want to store and use the generated.. If you want to store and use the generated results then you're probably better off with a list comprehension. Since performance..
How do I duplicate sys.stdout to a log file in python? http://stackoverflow.com/questions/616645/how-do-i-duplicate-sys-stdout-to-a-log-file-in-python screen. python tee share improve this question Since you're comfortable spawning external processes from your code you could..
Recommendations of Python REST (web services) framework? [closed] http://stackoverflow.com/questions/713847/recommendations-of-python-rest-web-services-framework . HTTP verbs are very important in REST and unless you're very careful about this you'll end up falling into a REST anti..
How to do relative imports in Python? http://stackoverflow.com/questions/72852/how-to-do-relative-imports-in-python than just answering the question. The problem is that you're running the module as '__main__' by passing the mod1.py as an..
Python: How do I pass a variable by reference? http://stackoverflow.com/questions/986006/python-how-do-i-pass-a-variable-by-reference the outer scope will know nothing about it and after you're done the outer reference will still point at the original object...
In Python 2.5, how do I kill a subprocess? http://stackoverflow.com/questions/1064335/in-python-2-5-how-do-i-kill-a-subprocess on the process pid. os.kill process.pid signal.SIGKILL You're OK because you're on on Linux. Windows users are out of luck...
Attempted relative import in non-package even with __init__.py http://stackoverflow.com/questions/11536764/attempted-relative-import-in-non-package-even-with-init-py python python import share improve this question Yes. You're not using it as a package. python m pkg.tests.core_test share..
Using subprocess.Popen for Process with Large Output http://stackoverflow.com/questions/1180606/using-subprocess-popen-for-process-with-large-output output python subprocess share improve this question You're doing blocking reads to two files the first needs to complete..
Loop “Forgets” to Remove Some Items http://stackoverflow.com/questions/17299581/loop-forgets-to-remove-some-items text python string share improve this question You're modifying the list you're iterating over which is bound to result..
http://stackoverflow.com/questions/1765677/python-nested-classes-scope any sort of special relationship between the classes. You're better off not nesting. You can still set a class attribute..
Checking File Permissions in Linux with Python http://stackoverflow.com/questions/1861836/checking-file-permissions-in-linux-with-python the script. python share improve this question You're right that os.access like the underlying access syscall checks..
Inherit docstrings in Python class inheritance http://stackoverflow.com/questions/2025562/inherit-docstrings-in-python-class-inheritance inheritance documentation share improve this question You're not the only one There was a discussion on comp.lang.python..
Python subprocess: callback when cmd exits http://stackoverflow.com/questions/2581817/python-subprocess-callback-when-cmd-exits callback subprocess exit share improve this question You're right there is no nice API for this. You're also right on your.. question You're right there is no nice API for this. You're also right on your second point it's trivially easy to design..
http://stackoverflow.com/questions/2958684/python-division way it is. python math share improve this question You're using Python 2.x where integer divisions will truncate instead..
http://stackoverflow.com/questions/384759/pil-and-numpy python imaging library share improve this question You're not saying how exactly putdata is not behaving. I'm assuming..
Python graceful future feature (__future__) import http://stackoverflow.com/questions/388069/python-graceful-future-feature-future-import import means. You can examine the contents of __future__ . You're still bound by the fact the a from __future__ import print_function..
Sqlite3, OperationalError: unable to open database file http://stackoverflow.com/questions/4636970/sqlite3-operationalerror-unable-to-open-database-file as you're testing it as Is the disk containing tmp full You're on Unix so use df tmp to find out. Does the tmp cer directory..
Using strides for an efficient moving average filter http://stackoverflow.com/questions/4936620/using-strides-for-an-efficient-moving-average-filter question I figured I'd post the N dimensional equivalent. You're not going to be able to significantly beat scipy.ndimage functions..
Getting started with secure AWS CloudFront streaming with Python http://stackoverflow.com/questions/6549787/getting-started-with-secure-aws-cloudfront-streaming-with-python services amazon cloudfront share improve this question You're right it takes a lot of API work to get this set up. I hope..
How to define Two-dimensional array in python http://stackoverflow.com/questions/6667201/how-to-define-two-dimensional-array-in-python my mistake python arrays share improve this question You're technically trying to index an uninitialized array. You have..
Creating a singleton in python http://stackoverflow.com/questions/6760685/creating-a-singleton-in-python has always seemed a natural candidate for Singletons. You're absolutely right . When people say singletons are bad the most..
How can you make a vote-up-down button like in Stackoverflow? http://stackoverflow.com/questions/719194/how-can-you-make-a-vote-up-down-button-like-in-stackoverflow to write this much but I got carried away a little bit. You're still missing an initial request to get all the votes when the..
How to learn Python: Good Example Code? [closed] http://stackoverflow.com/questions/918/how-to-learn-python-good-example-code or something. python share improve this question You're right that there's no substitute for looking at code but I've..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on properties. This is what you're doing by trial and error. You're programming a classifier by learning from positive and negative..
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