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implement INSTALLER from PEP376

See original GitHub issue

when pip is installing dist-info (only for wheels currently), we should write the ‘INSTALLER’ file, so pip can know later if it installed it.

http://legacy.python.org/dev/peps/pep-0376/#installer

for consistency, we could also start writing this file into egg-info metadata.

this could be useful for generating warnings when we’re uninstalling something not installed by pip.

also, we could present this information in pip list

Issue Analytics

State:
Created 10 years ago
Reactions:1
Comments:19 (19 by maintainers)

Top GitHub Comments

1reaction

ncoghlancommented, May 23, 2018

@pradyunsg Even with #5346, I believe that sudo pip uninstall systemd-python would still try to uninstall systemd-python, even though that doesn’t have a valid INSTALLER file saying pip.

0reactions

ncoghlancommented, May 6, 2019

Closing this as pip populates INSTALLER, and has done for a while.

https://github.com/pypa/pip/issues/5605 covers getting pip to skip updating packages installed by system package managers.

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