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python Programming Glossary: effectivelyUnderstanding Python's call-by-object style of passing function arguments http://stackoverflow.com/questions/10262920/understanding-pythons-call-by-object-style-of-passing-function-arguments remain unchanged. So in the case of the integer it was effectively passed by value and the other data structure were effectively.. passed by value and the other data structure were effectively passed by reference. I tried changing the list the number and.. not bu the list and the dictionary were. I use the word effectively above since the 'call by object' style of argument passing seems..
Why is SQLAlchemy insert with sqlite 25 times slower than using sqlite3 directly? http://stackoverflow.com/questions/11769366/why-is-sqlalchemy-insert-with-sqlite-25-times-slower-than-using-sqlite3-directly the ORM and one for the Core. You cannot use SQLAlchemy effectively without understanding both. For the use case of fast bulk inserts.. system that the ORM builds on top of. Using this system effectively we can produce an INSERT that is competitive with the raw SQLite..
What is a global interpreter lock (GIL)? http://stackoverflow.com/questions/1294382/what-is-a-global-interpreter-lock-gil On multi core systems it means that multiple threads can't effectively make use of multiple cores. If the GIL didn't lead to this problem..
Python subprocess.Popen “OSError: [Errno 12] Cannot allocate memory” http://stackoverflow.com/questions/1367373/python-subprocess-popen-oserror-errno-12-cannot-allocate-memory to a larger instance or put some coding effort into more effectively controlling your script's memory footprint NOTE that the coding..
http://stackoverflow.com/questions/1746613/bitwise-operation-and-usage 0000 1111 IS 9 0000 1001 The zero bits in 15 in that case effectively act as a filter forcing the bits in the result to be zero as..
What is memoization and how can I use it in Python? http://stackoverflow.com/questions/1988804/what-is-memoization-and-how-can-i-use-it-in-python memoization share improve this question Memoization effectively refers to remembering memoization memorandum to be remembered..
http://stackoverflow.com/questions/2212643/python-recursive-folder-read is a shorthand with open filename r as f dosomething # is effectively the same as f open filename r try dosomething finally f.close..
http://stackoverflow.com/questions/2581784/can-cython-compile-to-an-exe you want according to the Embedding Pyrex HOWTO . Pyrex is effectively a previous generation of Cython. Hmm... that name suggests a..
What do *args and **kwargs mean? [duplicate] http://stackoverflow.com/questions/287085/what-do-args-and-kwargs-mean lololol This prints out LOVE 'lol' 'lololol' How do you effectively use them python share improve this question Putting args..
use of “global” keyword in python http://stackoverflow.com/questions/4693120/use-of-global-keyword-in-python will become available outside the scope of the function effectively becoming a global variable. def bob global me me locally defined..
What is the best way to repeatedly execute a function every x seconds in Python? http://stackoverflow.com/questions/474528/what-is-the-best-way-to-repeatedly-execute-a-function-every-x-seconds-in-python in Objective C . This code will run as a daemon and is effectively like calling the python script every minute using a cron but.. about a cron implemented in Python the solution appears to effectively just sleep for x seconds. I don't need such advanced functionality..
Efficient Numpy 2D array construction from 1D array http://stackoverflow.com/questions/4923617/efficient-numpy-2d-array-construction-from-1d-array you're making a copy of the array. Incidentally this is effectively identical to @Paul's answer but I'm posting this just to explain.. for the second dimension it only steps one item forward effectively making the rows of new array a moving window view into the original..
Using strides for an efficient moving average filter http://stackoverflow.com/questions/4936620/using-strides-for-an-efficient-moving-average-filter apply an arbitrary function to the last axis repeatedly to effectively calculate things in a moving window. However because we're storing..
Python nested functions variable scoping http://stackoverflow.com/questions/5218895/python-nested-functions-variable-scoping data they just bind names to objects. So since the line is effectively saying _total _total PRICE_RANGES key 0 it creates _total in..
http://stackoverflow.com/questions/7933596/django-dynamic-model-fields simple to understand and database agnostic allows you to effectively attach detach dynamic attribute storage to Django model with..
http://stackoverflow.com/questions/9860667/writing-robust-color-and-size-invariant-circle-detection-with-opencv-based-on we know the decision rules and only need to find a way to effectively utilize them in an algorithm. Summary To summarize there are..
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