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python Programming Glossary: functionWhat is a metaclass in Python? http://stackoverflow.com/questions/100003/what-is-a-metaclass-in-python copy it you can add attributes to it you can pass it as a function parameter e.g. print ObjectCreator # you can print a class because.. the fly like any object. First you can create a class in a function using class def choose_class name ... if name 'foo' ... class.. Bar ... MyClass choose_class 'foo' print MyClass # the function returns a class not an instance class '__main__.Foo' print MyClass..
The Python yield keyword explained http://stackoverflow.com/questions/231767/the-python-yield-keyword-explained Yield is a keyword that is used like return except the function will return a generator. def createGenerator ... mylist range.. it's a useless example but it's handy when you know your function will return a huge set of values that you will only need to.. To master yield you must understand that when you call the function the code you have written in the function body does not run...
Python: How do I pass a variable by reference? http://stackoverflow.com/questions/986006/python-how-do-i-pass-a-variable-by-reference create a class to hold your value and pass it into the function or use an existing class like a list def use_a_wrapper_to_simulate_pass_by_reference..
http://stackoverflow.com/questions/1335392/iteration-over-list-slices is a multilevel numpy.array I am getting from a file. Function has to find averages of series user provides the length of series..
How can I handle exceptions in a list comprehension in Python? http://stackoverflow.com/questions/1528237/how-can-i-handle-exceptions-in-a-list-comprehension-in-python and only statements can catch ignore handle exceptions . Function calls are expression and the function bodies can include all..
How to connect a progress bar to a function? http://stackoverflow.com/questions/15323574/how-to-connect-a-progress-bar-to-a-function def workerThread self for x in xrange 1 5 time.sleep 2 msg Function s finished... x self.queue.put msg self.running False root tk.Tk.. queue def run self for x in xrange 1 5 time.sleep 2 msg Function s finished... x self.queue.put msg app App app.mainloop share..
What is the naming convention in Python for variable and function names? http://stackoverflow.com/questions/159720/what-is-the-naming-convention-in-python-for-variable-and-function-names share improve this question See Python PEP 8 . Function names should be lowercase with words separated by underscores..
A Transpose/Unzip Function in Python (inverse of zip) http://stackoverflow.com/questions/19339/a-transpose-unzip-function-in-python-inverse-of-zip Transpose Unzip Function in Python inverse of zip I have a list of 2 item tuples and..
http://stackoverflow.com/questions/2073235/random-weighted-choice improve this question Generate a Cumulative Distribution Function for each ID1 thus cdfs defaultdict for id1 id2 val in d prevtotal..
What are “first class” objects? [closed] http://stackoverflow.com/questions/245192/what-are-first-class-objects possible to have an object function which is first class. Function pointers are first class. boost bind lambda and function do.. class objects are referred to as second class objects. Functions in C are second class because they can't be dynamically created...
What are good uses for Python3's “Function Annotations” http://stackoverflow.com/questions/3038033/what-are-good-uses-for-python3s-function-annotations are good uses for Python3's &ldquo Function Annotations&rdquo Function Annotations PEP 3107 I ran across.. good uses for Python3's &ldquo Function Annotations&rdquo Function Annotations PEP 3107 I ran across a snippet of code demonstrating..
How can I profile python code line-by-line? http://stackoverflow.com/questions/3927628/how-can-i-profile-python-code-line-by-line is intended for. From the link File pystone.py Function Proc2 at line 149 Total time 0.606656 s Line # Hits Time Per..
http://stackoverflow.com/questions/400739/what-does-mean-in-python you very much. python share improve this question See Function Definitions in the Language Reference. If the form identifier..
http://stackoverflow.com/questions/477096/python-import-coding-style now instead of import foo from bar.baz import quux def myFunction foo.this.that quux I move all my imports into the function where.. the function where they're actually used. like this def myFunction import foo from bar.baz import quux foo.this.that quux This.. test.py real 0m1.569s user 0m1.560s sys 0m0.010s Import in Function Body def f import random L for i in xrange 1000 L.append random.random..
In Python, why can a function modify some arguments as perceived by the caller, but not others? http://stackoverflow.com/questions/575196/in-python-why-can-a-function-modify-some-arguments-as-perceived-by-the-caller copy objects you pass during a function call ever . Function parameters are names . When you call a function Python binds..
Function overloading in Python: Missing [closed] http://stackoverflow.com/questions/733264/function-overloading-in-python-missing overloading in Python Missing closed As this says http web.archive.org.. mail.python.org pipermail python list 2003 May 206149.html Function overloading is absent in Python. As far as I feel this a big..
http://stackoverflow.com/questions/735975/static-methods-in-python decorator see the description of function definitions in Function definitions for details. It can be called either on the class..
Dynamically set local variable in Python http://stackoverflow.com/questions/8028708/dynamically-set-local-variable-in-python are exceptions for example classes that define __slots__ . Function locals can be optimised for speed because the compiler usually..
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