[issue25143] 3.5 install fails poorly on Windows XP

[Roundup Robot]

Roundup Robot added the comment:

New changeset 2316bc881eea by Steve Dower in branch '3.5':
Issue #25143: Improves installer error messages for unsupported platforms.
https://hg.python.org/cpython/rev/2316bc881eea

New changeset 2c384ba13fdd by Steve Dower in branch 'default':
Issue #25143: Improves installer error messages for unsupported platforms.
https://hg.python.org/cpython/rev/2c384ba13fdd

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nosy: +python-dev

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[issue25143] 3.5 install fails poorly on Windows XP

[Steve Dower]

Steve Dower added the comment:

Still need to validate the fix on WinXP, as I'm not 100% certain that enough UI 
will appear to show the user the error, but we will now bail right at the start 
and link to either help pages for installing updates (for Vista/7) or Python 
3.4 (for pre-Vista).

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resolution:  -> fixed
stage: needs patch -> resolved
status: open -> closed

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[issue25143] 3.5 install fails poorly on Windows XP

[Tim Golden]

Tim Golden added the comment:

I'd just bail as early as poss. from the installer. If it's possible to 
detect Windows versions, stick something like "The last version to 
support WinXP is 3.4". If that's too tricky, perhaps something "Your 
system may be unsupported. Please try an earlier version of Python"

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[issue25143] 3.5 install fails poorly on Windows XP

[Steve Dower]

Steve Dower added the comment:

I don't have any XP machines handy, but I'll see if I can at least get an early 
termination from the installer rather than broken UI.

IIRC, Larry was against having prominent warnings about unsupported platforms 
on the download page, but with python.org being the official source of Windows 
binaries and XP still having an overly large market share, maybe it needs to be 
there? (Though it probably won't ever be prominent *enough*, and we'll still 
have people miss it.)

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nosy: +larry

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[issue25143] 3.5 install fails poorly on Windows XP

[Ulrich Fieseler]

Ulrich Fieseler added the comment:

Even better: Clearly (and ASAP!) document on download page that 3.4.3 is the 
last version usable in XP! This avoids useless downloads and a lot of confusion 
as clicking somewhere in the erroneously white area above the `Cancel' button 
in the 3.5.0 installer window will get the installation running (see mailing 
list thread quoted), only to experience error messages like `python.exe is not 
a valid win32 application' (translated from what I get in German, exact wording 
in English might be different) when trying to run the interpreter. That message 
is not helpful at all, either! Actually, searching the web for that message 
yields various suggestions how to fix the problem (useless here), taking me two 
days before I finally found the thread on the mailing list. :-( :-(

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nosy: +UlFie

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[issue25143] 3.5 install fails poorly on Windows XP

[Paul]

New submission from Paul:

Running the installer on an unsupported system (such as Windows XP)should fail 
gracefully and not just leave the user hanging.

https://mail.python.org/pipermail/python-list/2015-September/696789.html

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components: Installation
messages: 250852
nosy: pwat...@phs.org
priority: normal
severity: normal
status: open
title: 3.5 install fails poorly on Windows XP
type: behavior
versions: Python 3.5

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[issue25143] 3.5 install fails poorly on Windows XP

[Brett Cannon]

Changes by Brett Cannon :


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components: +Windows -Installation
nosy: +paul.moore, steve.dower, tim.golden, zach.ware

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[issue25143] 3.5 install fails poorly on Windows XP

[Djoudi Benarfa]

Djoudi Benarfa added the comment:

The Python installer could check what operating system the user is trying to 
install python on and if it's not supported then, information him, and maybe 
redirect him to the correct python version.

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nosy: +djoudi

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