Re: install on windows

On Wed, 23 Mar 2016 12:55:43 -0600
Jason Erickson <jerickso(at)stickpeople(dot)com> wrote:

> Hmm, I can duplicate this issue. But investigating it more, it is not
> strictly a psycopg2 issue, either.
>
> As Levente noted, the installers use Windows registry keys to
> determine the location of the Python installation. Between python
> 3.4.x and 3.5.x, it looks like the registry key for 32bit Python was
> changed from a format of 3.5 to 3.5-32.
>
> This change causes a problem for ALL 32bit extension installers on
> Python 3.5 that use the standard Python stub installer.
>
> Briefly looking at the stub code, I believe the standard Python stub
> installer only recognizes registry keys in the format
> <major>.<minor>. The extra '-32' at the end of the registry key
> makes the installer ignore the key, never finding the Python
> installation.
>
> Another package that uses the Python stub installer, pycurl, exhibits
> the same issues:
>
> https://bintray.com/artifact/download/pycurl/pycurl/pycurl-7.43.0.win32-py3.5.exe
>
>
>
> I'm not suggesting this, but a workaround is to rename the following
> registry key from:
>
> SOFTWARE\WOW6432Node\Python\PythonCore\3.5-32
>
> to:
>
> SOFTWARE\WOW6432Node\Python\PythonCore\3.5
>
>
> (ie, remove the '-32')
>
> Install the extension, and then rename the registry back. Don't
> forget to rename it back!
>
>
> Another workaround is to use the 64bit version of Python and
> Extensions.

Ok. Thanks.

I have the same issue with python2.7. The problem might be that the default
python download is for 32bit systems.

Thanks again!
Lev