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Requirements file

pip supports installing from PyPI, version control, local projects, and directly from distribution files.

The most common scenario is to install from PyPI using Requirement Specifiers "Requirements files" are files containing a list of items to be installed using pip install like so:

pip install -r requirements.txt

Logically, a Requirements file is just a list of pip install arguments placed in a file. Note that you should not rely on the items in the file being installed by pip in any particular order.

Ex of a requirements.txt file

django-redis-cache==1.7.1

xlrd==1.1.0

hiredis==0.2.0

django-admin-rangefilter=0.3.1

Poetry​

Python dependency management and packaging made easy.

poetryis a tool to handle dependency installation as well as building and packaging of Python packages. It only needs one file to do all of that: the new, standardized pyproject.toml

In other words, poetry usespyproject.tomlto replacesetup.py, requirements.txt, setup.cfg, MANIFEST.inand the newly addedPipfile

Features​

  • It will try to enforce semantic versioning as the best practice in version naming.
  • You can specify the readme, included and excluded files: no moreMANIFEST.in.poetrywill also use VCS ignore files (like.gitignore) to populate theexcludesection.
  • Keywords (up to 5) can be specified and will act as tags on the packaging site.
  • The dependencies sections support caret, tilde, wildcard, inequality and multiple requirements.
  • You must specify the python versions for which your package is compatible.

poetrywill also detect if you are inside a virtualenv and install the packages accordingly. So, poetrycan be installed globally and used everywhere.

poetryalso comes with a full fledged dependency resolution library.

https://github.com/python-poetry/poetry

https://python-poetry.org/docs

setup.py and mainfest.ini​

https://flask.palletsprojects.com/en/0.12.x/tutorial/packaging/#tutorial-packaging