How to load all modules in a folder?

Question

Could someone provide me with a good way of importing a whole directory of modules?
I have a structure like this:

/Foo
    bar.py
    spam.py
    eggs.py         


        

Answer 1

I've created a module for that, which doesn't rely on __init__.py (or any other auxiliary file) and makes me type only the following two lines:

import importdir
importdir.do("Foo", globals())

Feel free to re-use or contribute: http://gitlab.com/aurelien-lourot/importdir

Answer 2

Look at the pkgutil module from the standard library. It will let you do exactly what you want as long as you have an __init__.py file in the directory. The __init__.py file can be empty.

Answer 3

Just import them by importlib and add them to __all__ (add action is optional) in recurse in the __init__.py of package.

/Foo
    bar.py
    spam.py
    eggs.py
    __init__.py

# __init__.py
import os
import importlib
pyfile_extes = ['py', ]
__all__ = [importlib.import_module('.%s' % filename, __package__) for filename in [os.path.splitext(i)[0] for i in os.listdir(os.path.dirname(__file__)) if os.path.splitext(i)[1] in pyfile_extes] if not filename.startswith('__')]
del os, importlib, pyfile_extes

Answer 4

I know I'm updating a quite old post, and I tried using automodinit, but found out it's setup process is broken for python3. So, based on Luca's answer, I came up with a simpler answer - which might not work with .zip - to this issue, so I figured I should share it here:

within the __init__.py module from yourpackage:

#!/usr/bin/env python
import os, pkgutil
__all__ = list(module for _, module, _ in pkgutil.iter_modules([os.path.dirname(__file__)]))

and within another package below yourpackage:

from yourpackage import *

Then you'll have all the modules that are placed within the package loaded, and if you write a new module, it'll be automagically imported as well. Of course, use that kind of things with care, with great powers comes great responsibilities.

Answer 5

import pkgutil
__path__ = pkgutil.extend_path(__path__, __name__)
for imp, module, ispackage in pkgutil.walk_packages(path=__path__, prefix=__name__+'.'):
  __import__(module)

Answer 6

Using importlib the only thing you've got to add is

from importlib import import_module
from pathlib import Path

__all__ = [
    import_module(f".{f.stem}", __package__)
    for f in Path(__file__).parent.glob("*.py")
    if "__" not in f.stem
]
del import_module, Path