[issue38309] Avoid creating duplicate PATH entries with the macOS installer

[Raymond Hettinger]

New submission from Raymond Hettinger <raymond.hettinger at gmail.com>:

The macOS installer updates .bash_profile to add the current python version to the PATH.

The problem is that it doesn't check to see if that work has already been done in a previous installation.  So, as a person install successive beta releases, release candidates, a final release, and then maintenance releases, the PATH variable grows and grows.

As it stands now, a manual edit is required every after every update/upgrade.

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assignee: ned.deily
components: Build
messages: 353471
nosy: ned.deily, rhettinger
priority: normal
severity: normal
status: open
title: Avoid creating duplicate PATH entries with the macOS installer
versions: Python 3.8, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue38309>
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