Qt Designer is unable to open when clicked

[GoogleCodeExporter]

version: 2.7.2.3
components: recommended
custom: no
default path
all users
windows 7
installed by double clicking
no cleaning

all attempts to open Qt Designer fail. no explanation given.  get a loading 
icon then nothing.

If relevant, please answer to the following questions:
1. What version of Python(x,y) have you installed?
2. Which components have you installed (Python(x,y) installer: component
page):
    a. Have you selected the "Recommended" component selection?
    b. Have you selected the "Full" component selection?
c. Have you selected manually plugins in the component list? What
plugins?
3. Have you selected the option "Customize installation directories"?
a. Yes
b. No
4. If the answer to 3. is yes, what installation directories have you
chosen?
5. Where did you install Python(x,y) itself?
a. default path
b. custom path, which one?
6. Have you installed Python(x,y):
    a. For "Current user only"
    b. For "All users"
7. What is your operating system?
a. Windows XP
b. Windows Vista
c. Windows 7
8. Is the operating system 64 bit?
a. Yes
b. No
9. When you installed Python(x,y), were you logged in as :
a. a regular user
b. an administrator of the machine
10. If you are using Windows Vista/7, have you installed Python(x,y):
a. simply by double-clicking on the installer
    b. by right-clicking on the installer and selecting "Run as an
administrator"
11. Regarding installed softwares on your machine, how did you clean your
machine before installing Python(x,y) (multiple answers are possible):
a. you didn't do anything, you installed Python(x,y) directly on your
machine without precaution
b. you uninstalled any previous Python distribution (including the
official .msi)
c. you cleaned the Windows registry by removing all Python-related keys
d. you cleaned the environment variables by removing all deprecated
entries

What steps will reproduce the problem?
1.
2.
3.

What is the expected output? What do you see instead?

Please provide any additional information below.

Original issue reported on code.google.com by 1marcmil...@gmail.com on 6 Jun 2012 at 12:38

[GoogleCodeExporter]

make sure c:\Python27\Lib\site-packages\PyQt4 is first on the path and try 
again.

EA, from the command line do:
SET PATH=c:\Python27\Lib\site-packages\PyQt4;%PATH%
designer.exe

Please report the result.

Original comment by grizzly.nyo on 8 Jun 2012 at 11:27

• Changed state: Accepted

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Hi,

I tried doing what you recommended and it got me a syntax error.  I then 
changed it to what is below and got the same error. The qt designer will still 
not open.

In [25]: SET PATH=C:\Python27\Lib\site-packages\PyQt4\designer.exe
------------------------------------------------------------
   File "<ipython console>", line 1
     SET PATH=C:\Python27\Lib\site-packages\PyQt4\designer.exe
            ^
SyntaxError: invalid syntax

In [26]: 

Original comment by 1marcmil...@gmail.com on 8 Jun 2012 at 8:16

[GoogleCodeExporter]

you need to open the "windows command shell" - either via the start menu or by 
running "CMD.exe".

Then you enter the following - each on it's own line:
SET PATH=c:\Python27\Lib\site-packages\PyQt4;%PATH%
designer.exe

Original comment by grizzly.nyo on 9 Jun 2012 at 10:29

[GoogleCodeExporter]

Still gives invalid syntax errors.  I tried not capitalizing set path, but
that did not work either. Are you sure you are giving me the correct
commands to put in?

Marc

Original comment by 1marcmil...@gmail.com on 11 Jun 2012 at 5:37

[GoogleCodeExporter]

Can someone please help me?  I had QT designer working last month, but when
I got a new hardrive and tried reinstalling the latest version of python,
QT designer will no longer open, no matter what I try.  I have tried
uninstalling and reloading, I tried copying files, I tried setting the
path, but that only gives me syntax errors.  Does anyone know what is going
on?  Since I am not even getting the thing to open, I cannot see any error
messages so I am lost.

Original comment by 1marcmil...@gmail.com on 12 Jun 2012 at 5:08

[GoogleCodeExporter]

[deleted comment]

[GoogleCodeExporter]

Problem solved by:
uninstalling current version and deleting remaining files that did not
uninstall
reinstalling with newest version python 2.7.2.3
installing qt creator seperately
installing qt tools packages seperately
installing msvcp90.dll seperately
installing visa512full sepearately
downloading hotfix from microsoft for incompatibility issue
Seems there is an issue with the windows installation package for 64bit
systems.
trying to do everything at one sitting does not work, but installing the
same things seperately does.
go figure (shrug)

Special thanks to Michael and Jared for their suggestions on the seperate
installation.

Original comment by 1marcmil...@gmail.com on 12 Jun 2012 at 5:42

[GoogleCodeExporter]

Got the same problem after updating to PyQt 4.9.2. Rolled back to 4.8.6.4 and 
it worked fine.

Original comment by Wenzao...@gmail.com on 20 Aug 2012 at 7:08

[GoogleCodeExporter]

When updating PyQt, PyQwt must be updated as well as it's linked against it.

Since the latter provides a widget for the creator it's probably what breaks it.

Also, please be sure that _no_ PyQt applications are open while performing the 
upgrade.

Original comment by grizzly.nyo on 1 Sep 2012 at 10:05

[GoogleCodeExporter]

Original comment by grizzly.nyo on 13 Oct 2012 at 12:06

• Changed state: Done

[GoogleCodeExporter]

Try delete directory C:\Users\<Your account>\.designer
It works for me.
(Visual Studio 2010 with Qt 4.8.0 on Windows 7 64-bit)
I'm guessing my filter effects are named with non-latin characters and make the 
Designer load extra memory space (>800 MB) until memory access violation or 
out-of-memory then crashes.

Original comment by shood...@gmail.com on 7 Mar 2013 at 6:03