[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Steve Dower]

Steve Dower added the comment:

I believe this is out of date now, but if you have similar issues with the 
final release, feel free to respond to this thread again.

--
resolution:  -> out of date
stage:  -> resolved
status: open -> closed

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Decorater added the comment:

I found the registry keys for all python version Except for the keys that Adds 
it to path to manually uninstall the Add to Path. Other than that Everything 
Else has been found and take cared of manually thanks to Windows built in 
Registry Editor.

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Changes by Decorater :


Added file: http://bugs.python.org/file45843/Python 3.6.0rc1 
(64-bit)_20161210164706.log

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Changes by Decorater :


Added file: http://bugs.python.org/file45842/Python 3.6.0rc1 
(64-bit)_20161210164706.log

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Changes by Decorater :


Removed file: http://bugs.python.org/file45842/Python 3.6.0rc1 
(64-bit)_20161210164706.log

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Decorater added the comment:

Well, not only that but now when I try to uninstall the 64 bit version it seems 
to not be able to find when on the "Add to path" part of Uninstaller
E:\ProgramData\Package Cache\{815FC13F-79DD-484C-8788-028D69569000}v3.6.121.0\
and some other folders.

I think What the webinstaller should do when it cant find the file/files is to 
download them again and then run the uninstall in case otherwise there is no 
other way to actually uninstall it.

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Steve Dower]

Steve Dower added the comment:

Ah, did you change the default install directory to be the same as your 
previous install? Yeah, that's bad :) There's other registration information 
that we look at, so we don't even try and look at the existing files.

However, if you didn't change the directory, then that's a really bad bug on 
our side. But I think we'd be hearing many more issues if that was the problem.

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Decorater added the comment:

Ah I know what the problem is now. It is the fact that the 32 Bit Webinstaller 
does not check to see if a 64 bit version is installed at the folder that the 
32 bit version is set to to uninstall the 64 bit version 1st thereby it 
overwrites the data to the 36 bit install without removing the registry entries 
for the 64 bit install. Thereby why I cant uninstall, repair, or even reinstall 
the 64 bit version.

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Steve Dower]

Steve Dower added the comment:

If you run the installer through the Programs and Features dialog to modify or 
uninstall it should definitely find the current installation (as the 
registration it looks for is the same registration that makes it appear in that 
dialog). Because there are different installers, unfortunately they can't 
always detect each other despite laying down the same version of Python. I too 
would like them to get better at this, but it's not at all simple.

We can't go wiping install information arbitrarily or it will corrupt user 
machines.

For the missing file error, you should have a whole lot of log files in your 
%TEMP% directory. Could you zip them up and attach them here so I can take a 
look at what went wrong?

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

Changes by Decorater :


--
type:  -> behavior

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[issue28902] 3.6.0rc1 installer fails to install / uninstall.

[Decorater]

New submission from Decorater:

When installing python 3.6.0rc1 it errors saying that it cannot find python.dll 
 in cab1.cab (or some sort of file name similar to that) which it would 
obviously not exist. and then when I try to uninstall it it will fail saying 
3.6 is not installed but not check the registry to remove the entries for the 
windows Installed programs list.

I would like if the (web and non web) installers would actually get better and 
check right before closing if 3.6 is in the registry when it cant find one 
installed and remove those entries. As well as looking for previous python 
versions that lo longer are on disk but are on the registry as if they are 
installed (basically allows for proper cleanup).

--
components: Installation, Windows
messages: 282694
nosy: Decorater, paul.moore, steve.dower, tim.golden, zach.ware
priority: normal
severity: normal
status: open
title: 3.6.0rc1 installer fails to install / uninstall.
versions: Python 3.6

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