How to load function from string named module?

Question

I have structure:

modules
    __init__.py
    version_1.py
    version_2.py
settings.py
my_script.py
__init__.py

In file version_1 and version_2 I have two versions the same function:

def ext_function(*args, **kwargs):
    # something

I want to define in file settings.py what version have been loaded:

EXT_MODULE = 'modules.version_1'

and execute function in my_script like this:

settings.EXT_MODULE.ext_function(args)

How to do it? EXT_MODULE is a string so I can not execute function like this.

zondo · Accepted Answer · 2016-03-19 01:01:25Z

1

You can use the importlib module:

import importlib

module = importlib.import_module(settings.EXT_MODULE)
module.ext_function(args)

answered Mar 19, 2016 at 1:01

zondo

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