From reading the python source, and other projects I am looking to patch I see that there is often a file __init__.py, sometimes empty (only comments), sometimes not.

I have tried looking in what I hope are the "regular" places such as: https://docs.python.org, readthedocs (it took 454 seconds to build something - what did it build, and where do I get it? I was assuming it was "latest documentation" and I even tried the old, no-longer maintained, wiki.

A search for __init__.py, except for on https://packaging.python.org/ that talks about a setup command to extract the version from __init__.py - I have not been able to find anything on "standards" for packages that are more than a single .py file.

Probably, I am not looking correctly - however, I do hope someone also notices that finding this is not straight forward for a novice in python. Had I lacked curiosity I would have given up, moved on. Instead - this email.

In short, I would rather try to "read the manual" and ask questions when I get stuck than ask "stupid" questions. That only makes me look bad ;) (e.g., in my other thread the idea of using subclasses was made frequently. That was something I was considering, but what they are, how they are specified, what they achieve rather than guessing that it means - intent some related class xxx: lines.

re: project setup: when to use _filename.py - when to use filename.py; what is the difference/significance of a sub-directory when "masking" complexity, better implementation details, is the goal (i.e., there is the API and there are the nitty-gritty implementation details).

The key thing I have learned is that I must not assume that python is anything like what I already know/knew. Assume python "does it differently" and mistakes maybe fewer.

Thanks for your time and pointers (to links, if not direct advice)

Michael

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