How to automatically execute all functions in script?

Question

What is the best practice for automatically executing all of the functions in the script? Take for example this script:

def a():
    return 1

def b():
    return 100

def c():
    return 1000

How would I execute all of these functions without performing the following after running the script:

>>>a()
1
>>>b()
100
>>>c()
1000

Martijn Pieters · Accepted Answer · 2014-06-12 16:37:46Z

4

You can find all function objects in your globals:

from inspect import isfunction

for obj in globals().values():
    if isfunction(obj) and obj.__module__ == __name__:
        print obj()

By testing for the __module__ attribute you filter out any imported function objects (such as the inspect.isfunction() function). This assumes that none of your functions take arguments.

answered Jun 12, 2014 at 16:37

Martijn Pieters

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3 Comments

Borealis Over a year ago

This is great. As a point of curiosity, why does the printed output appear in the following order: a(), c(), b() (i.e. 1,1000,100)?

Martijn Pieters Over a year ago

@Aaron: because the global namespace is a dictionary, and dictionaries have no set order.

Martijn Pieters Over a year ago

@Aaron: you could sort on names, but if you really need source code order there are tricks you can apply (the starting line number is stored with the function code object as function.func_code.co_firstlineno, you can sort on that).

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