Python 3.6 Installation

Terry Reedy tjreedy at
Wed Jan 18 01:23:34 EST 2017

On 1/17/2017 11:32 PM, Michael Torrie wrote:
> On 01/17/2017 07:12 PM, Steven D'Aprano wrote:
>> On Wednesday 18 January 2017 12:30, Michael Torrie wrote:
>>> Yes googling error messages is a good idea. However the SO link seems to
>>> describe this problem as a missing DLL, probably the VS 2015 runtime
>>> redistributable library.  If this is the problem, why isn't Python's
>>> installer bundling the runtime for optional install?  Many other
>>> installers do this.  Judging by the frequency of posts like this one to
>>> this list, it's a problem that affects more than a few users.
>>> Anyway, it seems like this kind of runtime error is cropping up more and
>>> more for folks.
>> Perhaps some Python-on-Windows user who cares about this issue should raise it
>> on the bug tracker as a feature request.
> I did a quick search of the issue tracker and now I'm confused.
> Apparently the installer does bundle the runtime with Python.  And if
> Python is compiled against this new MS universal runtime that is
> supposed to be in all supported versions of windows (from windows
> update)

Not everyone has run Windows update since the current runtime was released.

  why is Visual Studio 2015 redistributable required, as per the
> SO link Terry linked to?
> -- Erik mentions that the runtime is
> bundled with the installer, but probably shouldn't be since it's a
> windows update thing now...

Terry Jan Reedy

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