Feature Request: API for use in setup.py

[c17r]

In an effort to reduce duplication it would be nice if setup.py could get the install_requires items from an API.

For a library where you want to be a little loose with the requirements (i.e. non-pinned)

# setup.py
from pipenv.api import install_requirements

setup(
    install_requires=install_requirements()
)

For an application distributed via setup.py, a little tighter

# setup.py
from pipenv.api import install_requirements

setup(
    install_requires=install_requirements(pinned=True)
)

[erinxocon]

This remindes me of npm and node a bit. I think it's a feature we can consider but not one that will want implement soon.

[erinxocon]

closing with a tag for now so we can keep track of future enhancements. Just trying to clear some of the issues out and sort them.

[tony]

Related: #209 #689

[flypenguin]

shoot, that would be SO nice :(