[PyQt] Installing multiple versions of PyQt

[Florian Bruhin]

* Detlev Offenbach <detlev at die-offenbachs.de> [2015-05-20 19:31:12 +0200]:
> 
> 
> On Wednesday 20 May 2015, 10:45:28 Giuseppe Corbelli wrote:
> > On 20/05/2015 09:45, Florian Bruhin wrote:
> > >>> - Use some kind of containers/chroots instead of VMs.
> > >> 
> > >> Virtualenv?
> > > 
> > > That'd basically be my second idea (multiple installs on the same
> > > system). However that still means I'll have to manage multiple Qt
> > > installs (and multiple PyQt installs which each use the right Qt) on
> > > the same system, which might be hard.
> > 
> > Never tried what I'm talking about but if you just install qt4 and qt5
> > systemwide and have different virtualenvs for pyqt4 (its own sip) and pyqt5
> > (its own sip) it should not be a PITA.
> 
> That is exactly the kind of setup I am using to test eric (my Python IDE) with various (but not 
> all) combinations of Qt, PyQt and Python. I needed it because eric is compatible with Python2 
> and 3 and PyQt4/Qt4, PyQt4/Qt5 and PyQt5/Qt5.

Nice! Could you elaborate a bit on how you set this up? Is it
essentially something like this?

- Compile multiple versions of Qt with -developer-build.
- Compile PyQt for each with --qmake=/path/to/qt/bin/qmake
- Symlink the libraries in a virtualenv each (or adjust PYTHONPATH
  accordingly)

Florian

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