Run from Source on Windows?

[itimpi]

I am trying to run Calibre from source on Windows (under Eclipse). When I choose run on (for instance) server.py, I get an error that states:

Traceback (most recent call last):
  File "C:\calibre\src\calibre\library\server.py", line 17, in <module>
    from PyQt4.Qt import QImage, QApplication, QByteArray, Qt, QBuffer
ImportError: cannot import name QImage

That is one of the imports mentioned in that module, but I do not know why it is missing. There is a Qt.pyd file in the PyQt4 folder and I do have the folder C:\Python26\Lib\site-packages\PyQt4 on the search path. I am guessing that this means there is something missing in the way the environment was built, probably for PyQt4? Should I simply rebuild PyQt4 not specifying specific packages? Alternatively I guess it could be something to do with the way Qt was built?

I want to be able to run from source as it should make it easier to investigate why some dialogs are not disappearing as they should on completing their action.

[kovidgoyal]

Can you run it from a console? And the dialog not disappearing problem should be fixed now.

[itimpi]

Originally Posted by kovidgoyal

Can you run it from a console? And the dialog not disappearing problem should be fixed now.

Do you mean from a VS2008 Command window using something like

python server.py

If so, the answer is I get the same error.

I still have the problem with the "Add Books" dialog not disappearing even in 4.129. I thought if I could get it running from Calibre source I could start investigating why. This is on several machines - the only common factor being they are all running XP Pro SP3. Having said that another common factor is that the Calibre library is on a network share on a NAS device. The Add books dialog not disappearing happens nearly all the time. I also occasionally get the Edit Metadata dialog not disappearing when it should, although that is much rarer.

[kovidgoyal]

In that case, your PyQt installation seems to not be working. You can test it with

python -c "from PyQt4.Qt import QImage"

Did you install it from source or using the binary?

[itimpi]

Originally Posted by kovidgoyal

In that case, your PyQt installation seems to not be working. You can test it with

python -c "from PyQt4.Qt import QImage"

Did you install it from source or using the binary?

That failed as well.

I installed from source.

[kovidgoyal]

I'm guessing that c:\Python26\Lib\site-packages\PyQt exists and contains the requisite .pyd files?

[itimpi]

That folder exists.

It contains a Qt.pyd file, which is where I assummed those imports are meant to come from?

[kovidgoyal]

If that's all it has the modules are missing. Qt.pyd is just a convenience wrapper. THere should be QtGui.pyd and QtCore.pyd at a minimum. Here is what my folder contains

Qt.pyd  QtCore.pyd  QtGui.pyd  QtNetwork.pyd  QtSvg.pyd  QtWebKit.pyd  __init__.py  __init__.pyc  pyqtconfig.py  pyqtconfig.pyc  uic

[itimpi]

All those files (and more) are present.

If you are reasonably sure it is the PyQt package that is at fault I can remove and rebuild.

[kovidgoyal]

Yeah if the plain python command is failing then that's the most likely cause

[itimpi]

I've rebuilt PyQt4 and that appears to have fixed the problem. Not sure why as I simply repeated what I previously did when I built it. Guess the reason does not matter as long as it now works!

[kovidgoyal]

Most likely it was a pyqt that was compiled for an incompatible python/qt version

[itimpi]

Possibly - although I had compiled from source!

The only thing I did this time that might have been different was delete the source folder and re-create it from the downloaded zip. I guess that there must have been some debris left behind from other install attempts?