Import modules in an already running application from subdirectories

Question

There is a modules directory with an empty __init__.py file and subdirectories with __init__.py in each. I can not immediately make an explicit import when developing an application, since I do not know how they will call subdirectories. How to import modules in an already running application from subdirectories?

 +--+modules + +--+__init__.py | +--+unknown2 | + | +--+__init__.py | +--+unknown3 | + | +--+__init__.py | +--+unknown1 | +--+__init__.py

Related question: Is it possible to load the contents of package modules if __init__ empty?
For example, there is an application with plug-ins connected in the form of separate catalog modules.
@RemiZOffAlex can be removed from the restriction that all plugins in one directory are (allowing them to independently develop / install) using setuptools entrypoints .
You don’t need to reinvent the bike, but Python itself is quite dynamic and pkgutil.iter_modules () may be enough in your case.

jfs jfs 44.5k eight 53 199 · Answer 1 · 2017-01-16T01:13:09

To import all child modules from the package modules :

 #!/usr/bin/env python3 import pkgutil import modules for importer, modname, ispkg in pkgutil.iter_modules(modules.__path__): # import a module given its name and the importer module = importer.find_module(modname).load_module() assert module.__name__ == modname

Import modules in an already running application from subdirectories

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