import __init__.py code example

Example 1: python3 import all files in directory

from inspect import isclass
from pkgutil import iter_modules
from pathlib import Path
from importlib import import_module

# iterate through the modules in the current package
package_dir = Path(__file__).resolve().parent
for (_, module_name, _) in iter_modules([package_dir]):

    # import the module and iterate through its attributes
    module = import_module(f"{__name__}.{module_name}")
    for attribute_name in dir(module):
        attribute = getattr(module, attribute_name)

        if isclass(attribute):            
            # Add the class to this package's variables
            globals()[attribute_name] = attribute

Example 2: python module initialization

import psutil

Example 3: import __init__.py

# use this for python script(s) in same folder where __init__.py is in
# it'll save typing up common imports for multiple python scripts
from . import *

# if want to be specific
from . import hello_world