[issue42192] Python Windows .exe Installer ignores /TargetDir if there is an existing installation

Martin Gfeller added the comment: Thanks again Steve. I will copy the installation. I require a lot of pip packaged, so the embeddable distro doesn't look right for my case. I still think the /targetdir should issue some kind of warning if used with an existing installation, but this is

[issue42192] Python Windows .exe Installer ignores /TargetDir if there is an existing installation

Steve Dower added the comment: So for a manually managed install, your best bet is to just copy the install directory somewhere else (and then maybe remove the original? Up to you). That will break the MSI tracking that lets us do reliable upgrades and repairs, but shouldn't break Python

[issue42192] Python Windows .exe Installer ignores /TargetDir if there is an existing installation

Martin Gfeller added the comment: Thank you, Steve, for your rapid response and explanation! I would like to have my installation fully isolated in case somebody (running the machine) fiddles with the installation in the standard location. I used to do that without problems with the 2.7 .msi

[issue42192] Python Windows .exe Installer ignores /TargetDir if there is an existing installation

Steve Dower added the comment: Unfortunately, this is deliberate, or at least deliberate enough to not consider it a bug. The installer from python.org is intended to only support a single install per-machine. In general, if you simply copy the installation folder to a new location it

[issue42192] Python Windows .exe Installer ignores /TargetDir if there is an existing installation

Martin Gfeller added the comment: Windows Version is Windows 10, version 1803 (build 17134.1726). -- ___ Python tracker ___ ___

[issue42192] Python Windows .exe Installer ignores /TargetDir if there is an existing installation

New submission from Martin Gfeller : I would like to install Python in a new location, completely separate and not affecting an existing installation of the same version. Despite I use /TargetDir=newdir, the installer goes into the "Modify Setup" dialog. If I chose "Modify", it shows my