caryoscelus:~#

Ever wondered how to make package export both its submodules for use with from package import * and re-export module members for use with from package import ClassName? Well, you can of course specify __all__ and then do from .module import * for each module, but that’s repeating yourself!

Instead, here’s a black magic (not really) technique which requires to specify each module only once.

# __init__.py
__all__ = [...]
from . import *

for module in __all__:
    m = globals()[module]
    
    try:
        all_attrs = m.__all__
    except AttributeError:
        all_attrs = [name for name in dir(m) if name[0] != '_']
    for name in all_attrs:
        globals()[name] = getattr(m, name)