Cyclic dependency in setup.py

[Darel13712]

Hello I came here because I have a problem using poetry add with a package that depends on typesentry. Read details here.

It turned out that there were 2 problems:

1. typesentry has itself in install_requires which is easy to fix.
2. __version__ is loaded in a way that triggers __init__ which depends on colorama package which is not available at the time of installation. i.e. pip install . is not working in a clear env, because you have to have colorama for it to work. This is not how it is supposed to be.

I changed the way version is loaded into setup.py so that __init__.py is not triggered, using guidelines from here. You may want to use different approach, but this was my take on it, I think it was the easiest one.

Hope this will solve this issue.