[Eric] Recipe for parallel installation of PyQt5 and PyQt4 on Windows

[Detlev Offenbach]

On Sunday 19 January 2014, 02:10:10 Hans Schmidt wrote:
> Hello,
> 
> I tried to do this, but it does not work (at least not as in the
> tutorial). I started from my already existing PyQt4 installation and
> then proceeded with steps 4 to 8.
> 
> When trying to open eric5.bat, it does not do anything.
> When I open a Python interpreter and try to import QtGui, it gives me
> the following:
> 
> Python 3.3.2 (v3.3.2:d047928ae3f6, May 16 2013, 00:03:43) [MSC v.1600 32
> bit (Intel)] on win32
> Type "help", "copyright", "credits" or "license" for more
> information.
> 
> >>> from PyQt4 import
> 
> QtGui
> Traceback (most recent call
> last):
>   File "<stdin>", line 1, in
> <module>
> ImportError: DLL load failed: %1 ist keine zulässige
> Win32-Anwendung.
> 
> >>> from PyQt5 import
> 
> QtGui
> Traceback (most recent call
> last):
>   File "<stdin>", line 1, in
> <module>
> ImportError: DLL load failed: %1 ist keine zulässige
> Win32-Anwendung.

That is strange. Everything works on my computer over here; eric5 ok, the above given PyQt4 
import ok and the PyQt5 import executed in a second Python command window ok. Importing 
both in the same interpreter fails as expected.

> 
> Am 19.01.2014 02:01, schrieb Detlev Offenbach:
> > That is right. However, the qt.conf file is in PyQt4 and PyQt5
> > directory and each contains the paths to the Qt librarys (that is one
> > contains PyQt4, the other PyQt5). Works fine on my maschine.
> > 
> > 
> > 
> > Phil, please just try it. If you find issues that crash one or the
> > other installation, I will shut up and never mention this again.
> > However, at the moment I am not convinced that there is a show stopper.
> 
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> http://www.riverbankcomputing.com/mailman/listinfo/eric-- 
*Detlev Offenbach*
detlev at die-offenbachs.de
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