[PyQt] pyqtdeploy-sysroot: Unable to find an installation of Python v2.7

[Phil Thompson]

On 07/02/2018 22:45, Neil Jansen wrote:
> On Wed, Feb 7, 2018 at 5:28 PM, Phil Thompson 
> <phil at riverbankcomputing.com>
> wrote:
>> 
>> On 7 Feb 2018, at 6:29 pm, Neil Jansen 
>> <neil.jansen at rockwellcollins.com>
> wrote:
>> > I'm trying to get the demo pyqtdeploy project working, and have
> hopefully gotten past the openssl building step in my previous email.
>> > Now I'm getting the following:
>> > pyqtdeploy-sysroot: Unable to find an installation of Python v2.7.
>> > [...]
>> > It appears that the Qt5Component._build_from_source() in
> lib\site-packages\pyqtdeploy\sysroot\plugins\qt5.py is hard-coded to 
> use
> Python 2.7's path when configuring and making, and installing qt5.
>> 
>> On Windows it will use the registry - it doesn't need to be on PATH.
> 
> I see that it's trying to look into the registry to see where the 
> Python
> 2.7 install directory is.  The problem is that I don't have Python 2.7
> installed, so it's failing.  My questions was, is there some reason 
> that
> it's hard-coded to 2.7?  If I made edits to the file above to hard-code 
> it
> to 'C:\python35', for example, would that work?  Or does it require 2.7 
> for
> some reason?
> 
> 
>> > Why does building Qt5 require Python 2.7 to be on the PATH?  Especially
> when pyqtdeploy requires Python 3.3 or later?  I didn't think that 
> building
> Qt5 required Python in any way at all.
>> It does. I think it's just one module and I can't remember which one
> offhand.
> 
> After some searching, I found this:
> http://doc.qt.io/qt-5/windows-requirements.html  .. It says it requires
> Python when building under Windows, but that's all it says.  Are you
> implying that it requires Python 2.7 specifically?

Yes.

Phil