如何将依赖项与requirements.txt分开？

Question

I am maintaining a requirements.txt file for my Python project, including version numbers and hashes for each package. (This is so I can install with pip install --no-deps --require-hashes .)

Some packages in the list are my actual requirements (for example, Sphinx ) while others are just dependencies of those requirements (for example, everything else you get when you pip install Sphinx ).

I want to maintain this list of requirements separately from those dependencies. How can I do this?

Answer 1

At the moment I have simply split my requirements into two files (see below, simplified for readability). But I am not sure how maintainable this will be (false retentions, handling dependency updates...).

requirements.txt

# these are my actual requirements
-r dependencies.txt
Sphinx

dependencies.txt

# these are the dependencies of my actual requirements
alabaster
Babel
certifi
chardet
docutils
idna
imagesize
Jinja2
MarkupSafe
Pygments
pytz
requests
six
snowballstemmer
sphinxcontrib-websupport
urllib3