Requirements.txt vs setup.py explained

Ever wondered about when you should use a requirements.txt file or the “install_requires” section in your setup.py to specify your project’s dependencies? Then this article by Donald Stufft is exactly what you need.

This split between abstract and concrete is an important one.

… and this split is manifested in the Python world by the existence of requirements.txt and setup.py. Also: it is just good to not feel alone anymore when thinking that Go-lang’s dependency-management is rather tedious and to some degree broken since their default tool for resolving external libraries doesn’t really distinguish between pinned dependencies and those with a valid version range (yet).

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