current init breaks `import returns` usecase

(crypy-PletnYfd)alexv@pop-os:~/Projects/crypy$ python3
Python 3.7.2 (default, Jan  8 2019, 16:12:09) 
[GCC 7.3.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import returns
>>> returns.result
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'returns' has no attribute 'result'
>>> returns.__file__
'/home/alexv/.local/share/virtualenvs/crypy-PletnYfd/lib/python3.7/site-packages/returns/__init__.py'
>>> returns.__version__
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
AttributeError: module 'returns' has no attribute '__version__'

I believe __init__.py should contain the modules or not be there at all, for both usecases to work. The usage given in example from returns.result import Result works because python import finds result.py as part of the package, but the module is not loaded as part of the super/parent package.

[sobolevn]

Ok, let’s expose public API in returns module.

[sobolevn]

Closed by https://github.com/dry-python/returns/commit/4e9ab7bd856b9af679a176df7a18b2f40d917dd4