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There are 2 main reasons for __init__.py

1. For convenience: the other users will not need to know your functions' exact location in your package hierarchy (documentation).

   your_package/
     __init__.py
     file1.py
     file2.py
       ...
     fileN.py
   

   # in __init__.py
   from file1 import *
   from file2 import *
   ...
   from fileN import *
   

   # in file1.py
   def add():
       pass
   

   then others can call add() by

    from your_package import add
   

   without knowing file1, like

    from your_package.file1 import add
   

2. If you want something to be initialized; for example, logging (which should be put in the top level):

    import logging.config
    logging.config.dictConfig(Your_logging_config)
   

There are 2 main reasons for __init__.py

1. For convenience: the other users will not need to know your functions' exact location in your package hierarchy (documentation).

   your_package/
     __init__.py
     file1.py
     file2.py
       ...
     fileN.py
   

   # in __init__.py
   from .file1 import *
   from .file2 import *
   ...
   from .fileN import *
   

   # in file1.py
   def add():
       pass
   

   then others can call add() by

    from your_package import add
   

   without knowing file1's inside functions, like

    from your_package.file1 import add
   

2. If you want something to be initialized; for example, logging (which should be put in the top level):

    import logging.config
    logging.config.dictConfig(Your_logging_config)
   

There are 2 main reasons for __init__.py

1. For convenience: the other users will not need to know your functions' exact location in your package hierarchy.

   your_package/
     __init__.py
     file1.py
     file2.py
       ...
     fileN.py
   

   # in __init__.py
   from file1 import *
   from file2 import *
   ...
   from fileN import *
   

   # in file1.py
   def add():
       pass
   

   then others can call add() by

    from your_package import add
   

   without knowing file1, like

    from your_package.file1 import add
   

2. If you want something to be initialized; for example, logging (which should be put in the top level):

    import logging.config
    logging.config.dictConfig(Your_logging_config)
   

There are 2 main reasons for __init__.py

1. For convenience: the other users will not need to know your functions' exact location in your package hierarchy (documentation).

   your_package/
     __init__.py
     file1.py
     file2.py
       ...
     fileN.py
   

   # in __init__.py
   from file1 import *
   from file2 import *
   ...
   from fileN import *
   

   # in file1.py
   def add():
       pass
   

   then others can call add() by

    from your_package import add
   

   without knowing file1, like

    from your_package.file1 import add
   

2. If you want something to be initialized; for example, logging (which should be put in the top level):

    import logging.config
    logging.config.dictConfig(Your_logging_config)
   

There are 2 main reasons for __init__.py

1. For convenience: the other users will not need to know your functions' exact location in your package hierarchy.

    your_package/
      __init__.py
      file1.py/
      file2.py/
        ...
      fileN.py
    
    # in __init__.py
    from file1 import *
    from file2 import *
    ...
    from fileN import *
    
    # in file1.py
    def add():
        pass
   

   then others can call add() by

    from your_package import add
   

   without knowing file1, like

    from your_package.file1 import add
   

2. If you want something to be initialized; for example, logging (which should be put in the top level):

    import logging.config
    logging.config.dictConfig(Your_logging_config)
   

There are 2 main reasons for __init__.py

1. For convenience: the other users will not need to know your functions' exact location in your package hierarchy.

   your_package/
     __init__.py
     file1.py
     file2.py
       ...
     fileN.py
    

   # in __init__.py
   from file1 import *
   from file2 import *
   ...
   from fileN import *
    

   # in file1.py
   def add():
       pass
   

   then others can call add() by

    from your_package import add
   

   without knowing file1, like

    from your_package.file1 import add
   

2. If you want something to be initialized; for example, logging (which should be put in the top level):

    import logging.config
    logging.config.dictConfig(Your_logging_config)