Daniel Wheeler | 9 Mar 2011 16:33
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Re: Re: can't start any guiqwt examples

Stefan,

I was also having the same issue when using PyQt4. For example,

   from PyQt4 import QtCore

was throwing a DLL load error. I found the following web post and did
what it said and things seemed to work.

   <http://stackoverflow.com/questions/2140836/pyqt-4-7-importerror-after-installing-on-windows>

Should I submit a bug report for this or is this PyQt4 issue?

On Fri, Dec 3, 2010 at 8:04 AM, Stefan <st_clauss@...> wrote:
> Hi Pierre.
>
> I installed Python(x,y) with a full installer after some previous installs.
> But i tried to deinstall all Python and Python(x,y) stuff before it.
>
>> from PyQt4 import QtCore
>
> and
>>
>> print QtCore.PYQT_VERSION_STR
>
> gives:
> 4.5.4
>
> I found a file: post_install.log in site-packages\guiqwt with the Content:
>
> --------------------------------------------------------------------------------
>
>                 Python(x,y) post-install log (xyinstall 1.0.3)
>
>          Module name: d:\Python26\Scripts\guiqwt_win_post_install.py
>
>                            Wed Dec 01 11:00:29 2010
>
> --------------------------------------------------------------------------------
>
>
>
>
> Adding 1 scripts...
> Traceback (most recent call last):
>  File "d:\Python26\Scripts\guiqwt_win_post_install.py", line 5, in <module>
>    xyinstall.main(__file__, sys.argv, scripts=['guiqwt-tests'])
>  File "d:\Python26\lib\site-packages\xyinstall.py", line 212, in main
>    prefs=prefs, other=other)
>  File "d:\Python26\lib\site-packages\xyinstall.py", line 184, in install
>    install_scripts(scriptlist)
>  File "d:\Python26\lib\site-packages\xyinstall.py", line 167, in
> install_scripts
>    shutil.copy(raw, py)
>  File "d:\Python26\lib\shutil.py", line 88, in copy
>    copyfile(src, dst)
>  File "d:\Python26\lib\shutil.py", line 52, in copyfile
>    fsrc = open(src, 'rb')
> IOError: [Errno 2] No such file or directory:
> 'd:\\Python26\\Scripts\\guiqwt-tests'
>
> maybe it will help.
>
> On the other side i can run some qwt-Examples (from the PyQwt webside) but
> no guiqwt ones.
>
> After changing "baseplot.py" to the attached version it works. ;) I don't
> know why!???
> If you, i would like to be informed.
>
> Cheers, Stefan
>
>
>
> Am 02.12.2010, 13:27 Uhr, schrieb Pierre Raybaut <contact@...>:
>
>> I see. It should not happen, in theory, when installing Python(x,y) on
>> a clean Windows installation (however, a Windows installation is never
>> clean except a few seconds after being installed from scratch).
>>
>> How did you install Python(x,y):
>>  1. after uninstalling all Python-related software on your machine
>>  2. on top of an existing Python(x,y) installation:
>>    a. with the Full installer which asked you if you agreed to remove
>> the previous Python(x,y) installation
>>    b. with Python(x,y) update installers
>>  3. on top of an existing non-Python(x,y) installation
>>
>> If an existing Python installation was there before installing
>> Python(x,y) 2.6.5.5, have you upgraded PyQt4 to a more recent version
>> than 4.5.4? (PyQt4 v4.5.4 official binary release is the only version
>> compatible with PyQwt 5.2.0 official binary release)
>> To check this, open a Python interpreter, and type the following:
>> from PyQt4 import QtCore
>> print QtCore.PYQT_VERSION_STR
>>
>> Pierre
>>
>> On Dec 2, 10:54 am, Stefan <st_cla...@...> wrote:
>>>
>>> Hi Pierre,
>>> thanks for your fast reply.
>>> The last Error i got in both cases:
>>>
>>>   File "d:\Python26\lib\site-packages\PyQt4\Qwt5\__init__.py", line 32,
>>> in <module>
>>>     from Qwt import *
>>> ImportError: DLL load failed: Die angegebene Prozedur wurde nicht
>>> gefunden.
>>>
>>> Cheers, Stefan
>>>
>>> Am 02.12.2010, 10:07 Uhr, schrieb Pierre Raybaut <cont...@...>:
>>>
>>>
>>>
>>> > Hi Stefan,
>>>
>>> > Could you please try to run the test launcher or one of these examples
>>> > from a console?
>>> > From the C:\Python26\Lib\site-packages\guiqwt\tests directory:
>>> >   * to run the test launcher:
>>> > python __init__.py
>>> >   * to run on of the examples:
>>> > python plot.py
>>>
>>> > This way, you will certainly have a traceback containing informations
>>> > regarding this issue. Then you may post this traceback here. Without
>>> > this, I'm afraid I can't help you at all.
>>>
>>> > (Anyway, this is an interesting feedback as everything works when
>>> > installing Python(x,y) on a fresh Windows installation: so it may be
>>> > related to your machine, like a compatibility issue with other
>>> > installed software/libraries.)
>>>
>>> > Cheers,
>>> > Pierre
>>>
>>> > On Dec 1, 11:50 pm, Stefan <st_cla...@...> > wrote:
>>> >> Hi all,
>>>
>>> >> i have installed the latest Python(x,y) (release 2.6.5.5).
>>> >> And i can't start any of the guiqwt Examples/Tests.
>>> >> My System is Windows Vista.
>>>
>>> >> Cheers, Stefan
>>> >> --
>>> >> Erstellt mit Operas revolutionärem >>
>>> >> E-Mail-Modul:http://www.opera.com/mail/
>>>
>>> --
>>> Erstellt mit Operas revolutionärem
>>> E-Mail-Modul:http://www.opera.com/mail/
>>
>
>
> --
> Erstellt mit Operas revolutionärem E-Mail-Modul: http://www.opera.com/mail/
>
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-- 
Daniel Wheeler

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