Pinning Application Dependencies with pip-tools compile

pip-tools has more functionality than this, but compile alone is quite useful.

Start with a loose list of dependencies in requirements.in:

typer
rich
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The requirements.in file can have things like >= and such if you have some restrictions on your dependencies.

Now install pip-tools:

pip install pip-tools
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Then, in create a requirements.txt file with compile:

pip-compile requirements.in
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or:

python -m piptools compile requirements.in
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The output will be shown on stdout, but also in requirements.txt:

# autogenerated by: pip-compile requirements.in
click==7.1.2
    # via typer
colorama==0.4.4
    # via rich
commonmark==0.9.1
    # via rich
pygments==2.9.0
    # via rich
rich==10.2.2
    # via -r requirements.in
typer==0.3.2
    # via -r requirements.in
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Now, do the same with a dev-requirements.ini to create dev-requirements.txt.

Then, of course:

• pip install -r requirements.txt
• pip install -r dev-requirements.txt
• And test your application.
• All good? Push changes.

To force pip-compile to update all packages in an existing requirements.txt, run pip-compile --upgrade.