[New-bugs-announce] [issue43486] Python 3.9 installer not updating ARP table

[Adam]

New submission from Adam <me at cookadam.co.uk>:

1. Install 3.9.0 using the following command line options: 

python-3.9.0.exe /quiet InstallAllUsers=1

2. Install 3.9.2 using the following command line options: 

python-3.9.2.exe /quiet InstallAllUsers=1

3. Observe that 3.9.2 successfully installed, however the ARP table does not reflect the latest version (see first screenshot in the attachment) it still shows 3.9.0 as installed.

4. Uninstall 3.9.2 using the following command line options:

python-3.9.2.exe /uninstall /silent

5. Observe that Python 3.9.0 is still listed as installed in the ARP table. Looking in the registry, all Python installed products are removed except for Python Launcher. Maybe it is by design to leave Python Launcher on the system, maybe not, but I think keeping the ARP table tidy would reduce confusion for users. See second screenshot in the attachment.

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components: Installation
files: 1.jpg
messages: 388615
nosy: codaamok
priority: normal
severity: normal
status: open
title: Python 3.9 installer not updating ARP table
type: behavior
versions: Python 3.9
Added file: https://bugs.python.org/file49873/1.jpg

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue43486>
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