Python get all functions in module

Get all defined functions in Python module

Question: A python program has builtin functions and user defined functions in it. Solution 2: A cheap trick in Python 3.x would be this: which returns non-magic functions that start with double underscores.

Get all defined functions in Python module

I have a file my_module.py that looks like this:

from copy import deepcopy from my_other_module import foo def bar(x): return deepcopy(x) 

I want to get a list of all the functions defined in my_module and not the imported ones, in this case just [bar] , not deepcopy or foo .

You can use inspect.getmembers with inspect.isfunction and then get all the functions whose .__module__ property is the same as the module’s .__name__ :

from inspect import getmembers, isfunction from my_project import my_module functions = [fn for _, fn in getmembers(my_module, isfunction) if fn.__module__ == my_module.__name__] 

How can I get a list of locally installed Python modules?, If you want to get the list of installed modules in your terminal, you can use the Python package manager, pip. For example, asn1crypto==0.22.0 astroid==1.5.2 attrs==16.3.0 Automat==0.5.0 backports.functools-lru-cache==1.3 cffi==1.10.0 If you have pip version >= 1.3, you can also use pip list.

How to get all the local variables defined inside the function in python?

Is there any way to print all the local variables without printing them expilictly ?

def some_function(a,b): name='mike' city='new york' #here print all the local variables inside this function? 

That would be the locals() built-in function

Python 3.9.0 (tags/v3.9.0:9cf6752, Oct 5 2020, 15:34:40) [MSC v.1927 64 bit (AMD64)] on win32 Type "help", "copyright", "credits" or "license" for more information. >>> locals() , '__spec__': None, '__annotations__': <>, '__builtins__': > >>> x = 5 >>> locals() , '__spec__': None, '__annotations__': <>, '__builtins__': , 'x': 5> 

You can filter out the builtins with a list comprehension:

>>> [_ for _ in locals() if not (_.startswith('__') and _.endswith('__'))] ['x'] 

How to access local variable from another function in, Hello, you’re probably overlooking the term local variable! In this case, local means it’s local to the function. If you want to access the variable in both functions you can either pass the variable into the function as a parameter, or make the variables global (hopefully the former). –

How to find user defined functions in python script

A python program has builtin functions and user defined functions in it. I wish to list out all the user defined functions in that program. Could any one suggest me the way to how to do it?

class sample(): def __init__(self): . some code. def func1(): . some operation. def func2(): . some operation.. 

This isn’t strictly true. The dir() function “attempts to produce the most relevant, rather than complete, information”. Source:

How do I get list of methods in a Python class?

Is it possible to list all functions in a module?

A cheap trick in Python 3.x would be this:

sample = Sample() [i for i in dir(sample) if not i.startswith("__")] 

which returns non-magic functions that start with double underscores.

Class — How to get a list of classes and functions from a, NOTHING short of actually executing the file can give you a 100% accurate answer to this question. There are just too many ways in Python to dynamically affect the namespace: importing names from elsewhere, conditionally executing definitions, manipulating the namespace directly by modifying its …

Find functions explicitly defined in a module (python)

Ok I know you can use the dir() method to list everything in a module, but is there any way to see only the functions that are defined in that module? For example, assume my module looks like this:

from datetime import date, datetime def test(): return "This is a real method" 

Even if i use inspect() to filter out the builtins, I’m still left with anything that was imported. E.g I’ll see:

Is there any way to exclude imports? Or another way to find out what’s defined in a module?

Are you looking for something like this?

import sys, inspect def is_mod_function(mod, func): return inspect.isfunction(func) and inspect.getmodule(func) == mod def list_functions(mod): return [func.__name__ for func in mod.__dict__.itervalues() if is_mod_function(mod, func)] print 'functions in current module:\n', list_functions(sys.modules[__name__]) print 'functions in inspect module:\n', list_functions(inspect) 

EDIT: Changed variable names from ‘meth’ to ‘func’ to avoid confusion (we’re dealing with functions, not methods, here).

You can check __module__ attribute of the function in question. I say «function» because a method belongs to a class usually ;-).

BTW, a class actually also has __module__ attribute.

Every class in python has a __module__ attribute. You can use its value to perform filtering. Take a look at example 6.14 in dive into python

How to get/set local variables of a function (from, def sample_func(x_local=None): if not x_local: x_local = x a = 78 b = range(5) c = a + b[2] — x_local This will allow the function to accept a parameter from your main function the way you want to use it, but it will not break the other program as it will still use the globally defined x if the function is not given any …

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How to list all functions in a Python module?

In this article we will discuss how to list all the functions in a Python module.

A Python module contains multiple different functions that allow for extensive code reusability making complex code simple. It also enhances portability of python program by changing platform dependent code into platform independent APIs

Python standard library consists of modules written in C that provide access to system functionality and modules written in python that provide general solutions for everyday problems making the life of programmers easy as it prevents writing of long code for simple problems

Using dir() to get functions in a module

Python dir() function is used to display the names of all the functions and variables present in a module. The function produces the most relevant result rather than the complete result as it list public and non-public functions.

Example

The below code gives an example of using dir() to get the relevant functions of math module.

# Importing math module import math as mt # Printing all the functions in math module using dir print(dir(mt))

Output

The output displays the most relevant function in the math module.

['__doc__', '__loader__', '__name__', '__package__', '__spec__', 'acos', 'acosh', 'asin', 'asinh', 'atan', 'atan2', 'atanh', 'ceil', 'comb', 'copysign', 'cos', 'cosh', 'degrees', 'dist', 'e', 'erf', 'erfc', 'exp', 'expm1', 'fabs', 'factorial', 'floor', 'fmod', 'frexp', 'fsum', 'gamma', 'gcd', 'hypot', 'inf', 'isclose', 'isfinite', 'isinf', 'isnan', 'isqrt', 'ldexp', 'lgamma', 'log', 'log10', 'log1p', 'log2', 'modf', 'nan', 'perm', 'pi', 'pow', 'prod', 'radians', 'remainder', 'sin', 'sinh', 'sqrt', 'tan', 'tanh', 'tau', 'trunc']

Using __all__ to get functions in a module

The __all__ gives a list of all public functions which are imported when using import *. It gives all the functions that do not start with an underscore (_) before them. Modules that do not define __all__ will throw an AttributeError if a user tries to get the functions within that module.

Example

The code below gives a demo of using __all__ to display different functions in re module.

# Importing re module import re # Printing different functions in re module print(re.__all__)

Output

The output gives the different functions present in re module.

['match', 'fullmatch', 'search', 'sub', 'subn', 'split', 'findall', 'finditer', 'compile', 'purge', 'template', 'escape', 'error', 'Pattern', 'Match', 'A', 'I', 'L', 'M', 'S', 'X', 'U', 'ASCII', 'IGNORECASE', 'LOCALE', 'MULTILINE', 'DOTALL', 'VERBOSE', 'UNICODE']

Using inspect to get functions in a module

Python inspect library can be used to get the functions under any module. The getmembers() function gets all the functions and variables inside a module and then isfunction filters to show only the functions. Using inspect allows for all functions in a module to be displayed unlike dir().

Example

The code given below shows use of getmembers and isfunction in inspect library to get functions of a module.

# Importing getmembers and isfunction from inspect from inspect import getmembers, isfunction # Importing math module import math as mt # Printing all the functions in math module print(getmembers(mt), isfunction)

Output

The output lists all the functions present in the math module.

[(‘__doc__’, ‘This module provides access to the mathematical functions\ndefined by the C standard.’), (‘__loader__’, ), (‘__name__’, ‘math’), (‘__package__’, »), (‘__spec__’, ModuleSpec(name=’math’, loader=, origin=’built-in’)), (‘acos’, ), (‘acosh’, ), (‘asin’, ), (‘asinh’, ), (‘atan’, ), (‘atan2’, ), (‘atanh’, ), (‘ceil’, ), (‘comb’, ), (‘copysign’, ), (‘cos’, ), (‘cosh’, ), (‘degrees’, ), (‘dist’, ), (‘e’, 2.718281828459045), (‘erf’, ), (‘erfc’, ), (‘exp’, ), (‘expm1’, ), (‘fabs’, ), (‘factorial’, ), (‘floor’, ), (‘fmod’, ), (‘frexp’, ), (‘fsum’, ), (‘gamma’, ), (‘gcd’, ), (‘hypot’, ), (‘inf’, inf), (‘isclose’, ), (‘isfinite’, ), (‘isinf’, ), (‘isnan’, ), (‘isqrt’, ), (‘ldexp’, ), (‘lgamma’, ), (‘log’, ), (‘log10’, ), (‘log1p’, ), (‘log2’, ), (‘modf’, ), (‘nan’, nan), (‘perm’, ), (‘pi’, 3.141592653589793), (‘pow’, ), (‘prod’, ), (‘radians’, ), (‘remainder’, ), (‘sin’, ), (‘sinh’, ), (‘sqrt’, ), (‘tan’, ), (‘tanh’, ), (‘tau’, 6.283185307179586), (‘trunc’, )]

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