Help. HOW TO guide for PyQt installation

[jmfauth]

On 20 mar, 11:38, Phil Thompson <p... at riverbankcomputing.com> wrote:
> On Wed, 20 Mar 2013 03:29:35 -0700 (PDT), jmfauth <wxjmfa... at gmail.com>
> wrote:
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> > On 20 mar, 10:30, Phil Thompson <p... at riverbankcomputing.com> wrote:
> >> On Wed, 20 Mar 2013 02:09:06 -0700 (PDT), jmfauth <wxjmfa... at gmail.com>
> >> wrote:
>
> >> > On 20 mar, 01:12, "D. Xenakis" <gouzouna... at hotmail.com> wrote:
> >> >> Hi there,
> >> >> Im searching for an installation guide for PyQt toolkit.
> >> >> To be honest im very confused about what steps should i follow for a
> >> >> complete and clean installation. Should i better choose to install
> the
> >> >> 32bit or the 64bit windows version? Or maybe both? Any chance one of
> >> them
> >> >> is more/less bug-crashy than the other? I know both are availiable
> on
> >> the
> >> >> website but just asking.. If i installed this package on windows 8,
> >> >> should i have any problems? From what i read PyQt supports only xp
> and
> >> >> win7.
> >> >> I was thinking about installing the newer version of PyQt along with
> >> the
> >> >> QT5. I have zero expirience on PyQt so either way, everything is
> going
> >> to
> >> >> be new to me, so i dont care that much about the learning curve
> >> diference
> >> >> between new and old PyQt - Qt version. I did not find any installer
> so
> >> i
> >> >> guess i should customly do everything. Any guide for this plz?
>
> >> >> Id also like to ask.. Commercial licence of PyQt can only be bought
> on
> >> >> riverbank's website? I think i noticed somewhere an other reseller
> >> >> "cheaper one" or maybe i didnt know what the hell i was reading :).
> >> Maybe
> >> >> something about Qt and not PyQt.
>
> >> >> Please help this noob,
> >> >> Regards
>
> >> > --------
>
> >> > Short answer without explanation. It does not work.
>
> >> > jmf
>
> >> Well it works for me. Care to elaborate?
>
> >> Phil
>
> > No problem.
>
> > Yesterday, I downloaded "PyQt4-4.10-gpl-Py3.3-Qt5.0.1-x32-2.exe"
> > and installed it on my Windows 7 Pro box after having removed
> > a previous version.
>
> > No problem with the installation.
>
> > I quickly tested it with one of my interactive Python interpreters
> > and got an error "from PyQt4 import QtGui, QtCore" saying, that the
> > DLL cannot be found.
>
> > Something similar to what Detlev Offenbach reported on
> > the PyQt mailing list. Although, I'm not using Qsci.
>
> > Strangely, I had not problem (if I recall correctly) with a
> > very basic application (QMainWindow + QLineEdit).
>
> > I had no problem with the demo (I only lauched it).
>
> > I did not spend to much time in investigating further.
>
> > It's the first time I see such an error; usually, no problem.
>
> The only time that I've seen a problem like that is when running from a
> shell that was started before running the PyQt installer (ie. one with an
> out of date PATH).
>
> Phil

------

The PATH could be the cause. I stupidly forgot to check it
before removing PyQt...

I repeated the experiment (app == eta26.py). With and
without "PyQt" in the system PATH. (Btw, why is it
necessary?)

D:\jm\jmpy\eta\eta26>c:\python32\python eta26.py
PyQt: 4.8.6, Qt: 4.7.4 Python 3.2.3

No problem.



D:\jm\jmpy\eta\eta26>c:\python33\python eta26.py
Traceback (most recent call last):
  File "eta26.py", line 32, in <module>
    from PyQt4 import QtGui, QtCore
ImportError: DLL load failed: Le module spécifié est introuvable.
(Translation: The specified module can no be found.)



D:\jm\jmpy\eta\eta26>c:\python33\python eta26.py
PyQt: 4.10, Qt: 4.8.4 Python 3.3.0

No problem.



No idea. It is mysterious for me. eta26 is only
importing QtGui and QtCore. It however uses a sophisticated
widget like QPlainTextEdit.

jmf