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python Programming Glossary: alwaysWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python . There is nothing special about it a method always receives the current instance as first parameter. Just like..
Difference between __str__ and __repr__ in Python http://stackoverflow.com/questions/1436703/difference-between-str-and-repr-in-python know about this instance Note I used r above not s . You always want to use repr or r formatting character equivalently inside..
http://stackoverflow.com/questions/145270/calling-c-c-from-python c share improve this question I like ctypes a lot swig always tended to give me problems . Also ctypes has the advantage that..
Finding local IP addresses using Python's stdlib http://stackoverflow.com/questions/166506/finding-local-ip-addresses-using-pythons-stdlib socket.gethostbyname socket.gethostname This won't work always returns 127.0.0.1 on machines having the hostname in etc hosts..
What do (lambda) function closures capture in Python? http://stackoverflow.com/questions/2295290/what-do-lambda-function-closures-capture-in-python Scoping in Python is dynamic and lexical. A closure will always remember the name and scope of the variable not the object it's.. in the same scope and use the same variable name they always refer to the same variable. EDIT Regarding your other question..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained wish but you store all the values in memory and it's not always what you want when you have a lot of values. Generators Generators..
Import a module from a relative path http://stackoverflow.com/questions/279237/import-a-module-from-a-relative-path before # sys.argv 0 also fails because it doesn't not always contains the path As a bonus this approach does let you force..
String comparison in Python: is vs. == [duplicate] http://stackoverflow.com/questions/2988017/string-comparison-in-python-is-vs by default even when comparing int or Boolean values I've always liked to use 'is' because I find it more aesthetically pleasing.. dicts functions etc. if x is y then x y is also True. Not always. NaN is a counterexample. But usually identity implies equality... ints or immutable types in general you pretty much always want the former. There's an optimization that allows small integers..
Old style and new style classes in Python http://stackoverflow.com/questions/54867/old-style-and-new-style-classes-in-python then x.__class__ designates the class of x but type x is always type 'instance' . This reflects the fact that all old style..
Python's use of __new__ and __init__? http://stackoverflow.com/questions/674304/pythons-use-of-new-and-init pattern. However I'm a bit confused as to why __init__ is always called after __new__ . I wasn't expecting this. Can anyone tell..
Why are Python's 'private' methods not actually private? http://stackoverflow.com/questions/70528/why-are-pythons-private-methods-not-actually-private '__module__' 'myPublicMethod' This new method's name is always an underscore followed by the class name followed by the method.. is private So much for encapsulation eh In any case I'd always heard Python doesn't support encapsulation so why even try What..
Strip HTML from strings in Python http://stackoverflow.com/questions/753052/strip-html-from-strings-in-python doing this python html share improve this question I always used this function to strip HTML tags as it requires only the..
How to get line count cheaply in Python? http://stackoverflow.com/questions/845058/how-to-get-line-count-cheaply-in-python reading the entire file Not sure... The best solution will always be I O bound best you can do is make sure you don't use unnecessary..
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 faster than the shortcuts posted so far. For evidence as always you can use the timeit module in the standard library python..
Adding a Method to an Existing Object http://stackoverflow.com/questions/972/adding-a-method-to-an-existing-object in some cases Duck Punching . I understand that it's not always a good decision to do so. But how might one do this And if you..
Common pitfalls in Python [duplicate] http://stackoverflow.com/questions/1011431/common-pitfalls-in-python What else should I add to my list of things to MUST avoid Always import modules the same way e.g. from y import x and import..
“Inner exception” (with traceback) in Python? http://stackoverflow.com/questions/1350671/inner-exception-with-traceback-in-python except TypeError e raise MyException None sys.exc_info 2 Always do this when catching one exception and re raising another...
http://stackoverflow.com/questions/1411417/how-do-i-stop-getting-importerror-could-not-import-settings-mofin-settings-wh home html django_templates or C www django templates . # Always use forward slashes even on Windows. # Don't forget to use absolute..
Django Static Files results in 404 http://stackoverflow.com/questions/14799835/django-static-files-results-in-404 here like home html static or C www django static . # Always use forward slashes even on Windows. # Don't forget to use absolute..
How to make python window run as “Always On Top”? http://stackoverflow.com/questions/1482565/how-to-make-python-window-run-as-always-on-top to make python window run as &ldquo Always On Top&rdquo I am running a little program in python that launches..
Unable to serve static files like css, js in django python http://stackoverflow.com/questions/15081893/unable-to-serve-static-files-like-css-js-in-django-python here like home html static or C www django static . # Always use forward slashes even on Windows. # Don't forget to use absolute.. here like home html static or C www django static . # Always use forward slashes even on Windows. # Don't forget to use absolute..
TypeError: unsupported operand type(s) for /: 'str' and 'str' http://stackoverflow.com/questions/15235703/typeerror-unsupported-operand-types-for-str-and-str tpy 100 In python 3 the input function returns a string. Always. This is a change from Python 2 the raw_input function was renamed..
How do you organize Python modules? [closed] http://stackoverflow.com/questions/171785/how-do-you-organize-python-modules from setuptools . Read the documentation for setuptools. Always use virtualenv . My site packages directory contains setuptools..
http://stackoverflow.com/questions/172720/speeding-up-python a wrong program is still wrong. Remember the 80 20 rule. Always run before and after benchmarks. Otherwise you won't know if..
SQLite, python, unicode, and non-utf data http://stackoverflow.com/questions/2392732/sqlite-python-unicode-and-non-utf-data be encoding C with a reduced level of confidence e.g. 0.8. Always check the confidence part of the answer . If all else fails..
Always including the user in the django template context http://stackoverflow.com/questions/41547/always-including-the-user-in-the-django-template-context including the user in the django template context I am working..
What is the 'cls' variable used in python classes? http://stackoverflow.com/questions/4613000/what-is-the-cls-variable-used-in-python-classes a coding style. PEP8 says Function and method arguments Always use 'self' for the first argument to instance methods. Always.. use 'self' for the first argument to instance methods. Always use 'cls' for the first argument to class methods. share improve..
Setting the correct encoding when piping stdout in python http://stackoverflow.com/questions/492483/setting-the-correct-encoding-when-piping-stdout-in-python are piping you must encode it yourself. A rule of thumb is Always use unicode internally. decode what you receive encode what..
Is it possible to specify your own distance function using Scikits.Learn K-Means Clustering? http://stackoverflow.com/questions/5529625/is-it-possible-to-specify-your-own-distance-function-using-scikits-learn-k-means means ... with code that works on scipy.sparse matrices. 3 Always check cluster sizes after k means. If you're expecting roughly..
http://stackoverflow.com/questions/6019627/python-self-keyword improve this question There is no less verbose way. Always use self.x to access the instance attribute x . Note that unlike..
Python tuple comma syntax rule http://stackoverflow.com/questions/7992559/python-tuple-comma-syntax-rule has gone wrong in a perhaps not immediately obvious way. Always include the trailing comma and you avoid that trap. share improve..
Ultimate answer to relative python imports http://stackoverflow.com/questions/8299270/ultimate-answer-to-relative-python-imports '..' from mypackage import bar else from .. import bar 2 Always import bar using from mypackage import bar and execute foo.py..
Always get printed value of “None” http://stackoverflow.com/questions/8462383/always-get-printed-value-of-none get printed value of &ldquo None&rdquo Alright so here is my..
Apache not serving django admin static files http://stackoverflow.com/questions/9500598/apache-not-serving-django-admin-static-files here like home html static or C www django static . # Always use forward slashes even on Windows. # Don't forget to use absolute..
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