I installed a Python program but can't find all it's source code

Question

This is a question about Python program packaging and distribution. I installed SomeProgram from the Internet that requires Python. It works exactly like it's supposed to. There is only one single file that I can find associated with it located in \usr\bin\ It does not have a ".py" file extension, but I can open in it Python's IDLE text editor. There are just a few lines and less than 100-bytes long.

Also, it runs within BASH and accepts arguments and lots of options including some like -h for help or --verbose for alternate output. I wouldn't know it's a python program except that my understanding is that it's written in python.

I'm understanding that the code here is instructing it to import itself. The file is the SAME NAME [wrong see update] as the file it's asking to import, and there is no .py extension for the actual filename. Here is the code, [I've swapped out the name with SomeProgram because its a commercial enterprise name I don't want to print online]:

#!/usr/bin/python

import SomeProgram

if __name__ == '__main__':
    SomeProgram.main()

I want to understand where the main() source code is and learn from it. The program is fairly complex but I can't find it.

UPDATE: Problem solved. While finding the source code using the posted help below, I discovered that the file-name and and imported package-name are actually different. There is a hyphen within the python filename in my /usr/bin/ location, while the import-name has an underscore. It turns out that the source code is here: /usr/lib/python2.7/dist-packages/SomeProgram

Just print SomeProgram.__file__......

Taku
– Taku

2017-03-26 19:00:16 +00:00
Commented Mar 26, 2017 at 19:00 — Taku
– Taku, Commented Mar 26, 2017 at 19:00

Roland Smith · Accepted Answer · 2017-03-26 20:19:14Z

1

The program loads its own module which is probably installed in Python's site-packages directory.

Open an Python interactive Python session and use these commands to find out where that is:

import site
site.getsitepackages()

Example:

> python 
Python 2.7.13 (default, Dec 28 2016, 20:51:25) 
[GCC 4.2.1 Compatible FreeBSD Clang 3.8.0 (tags/RELEASE_380/final 262564)] on freebsd11
Type "help", "copyright", "credits" or "license" for more information.
>>> import site
>>> site.getsitepackages()
['/usr/local/lib/python2.7/site-packages', '/usr/local/lib/site-python']

answered Mar 26, 2017 at 20:19

Roland Smith

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