Need Help Building PythonQt on Windows

Jeff Schiller codedread at gmail.com
Sun Mar 9 18:26:57 CET 2008


Hello,

I'm creating an application using Qt (4.4 Beta atm).  I have pretty
close to zero experience with Python (consisting of installing the
Python interpreter, downloading a python programming and executing it
on the command-line).

I would like to invoke a Python script from my C++ Qt program and
capture its output as a C++ structure.  It seems that PythonQt might
be suitable for my needs.

Being a Qt program, I want this thing to be cross-platform.  I'm
having trouble getting things set up in Windows.  Has anyone had any
experience with this?

I've built Qt from source using the mingw32 compiler.  I installed
Python 2.5 binary.  I am trying to build PythonQt from source.  As per
http://pythonqt.sourceforge.net/#Building it says I need a "developer
installation" of Python containing the header files and  the library
files.  When I look at my system after installing the Python 2.5
binary, I can see I have header files (C:\Python25\include), a 199k
python25.lib (C:\Python25\libs) and a 2MB python25.dll
(C:\Windows\System32\).  Have I got what I need?

I have tried to set up my symbols (PYTHON_PATH, PYTHON_LIB,
PYTHONQT_ROOT).  I generate the Makefile (using qmake) and it starts
to build but then it fails:

g++ -enable-stdcall-fixup -Wl,-enable-auto-import
-Wl,-enable-runtime-pseudo-reloc -mthreads -Wl -shared
-Wl,--out-implib,lib\libPythonQt.a -o lib\PythonQt.dll
object_script.PythonQt.Debug  -L"c:\Qt\4.4.0-beta1\lib"
"c:\Python25\libs"/python25.lib -lQtGuid4 -lQtCored4
./debug\PythonQt.o: In function `ZN8PythonQtC2Ei':
C:/PythonQt-1.0/src/PythonQt.cpp:118: undefined reference to
`_imp__Py_NoSiteFlag'
./debug\PythonQt.o: In function `ZN8PythonQtC1Ei':
C:/PythonQt-1.0/src/PythonQt.cpp:118: undefined reference to
`_imp__Py_NoSiteFlag'
./debug\PythonQt.o: In function `ZN15PythonQtPrivate11wrapQObjectEP7QObject':
C:/PythonQt-1.0/src/PythonQt.cpp:256: undefined reference to
`_imp___Py_NoneStruct'
C:/PythonQt-1.0/src/PythonQt.cpp:257: undefined reference to
`_imp___Py_NoneStruct'
./debug\PythonQt.o: In function `ZN15PythonQtPrivate7wrapPtrEPvRK10QByteArray':
C:/PythonQt-1.0/src/PythonQt.cpp:281: undefined reference to
`_imp___Py_NoneStruct'
C:/PythonQt-1.0/src/PythonQt.cpp:282: undefined reference to
`_imp___Py_NoneStruct'
./debug\PythonQt.o: In function
`ZN8PythonQt13introspectionEP7_objectRK7QStringNS_10ObjectTypeE':
C:/PythonQt-1.0/src/PythonQt.cpp:620: undefined reference to
`_imp__PyClass_Type'
C:/PythonQt-1.0/src/PythonQt.cpp:625: undefined reference to
`_imp__PyClass_Type'
C:/PythonQt-1.0/src/PythonQt.cpp:625: undefined reference to
`_imp__PyCFunction_Type'
...

Since I'm new to compiling Qt with mingw and completely new to python,
I was hoping for tips on why I'm getting these errors.  If anyone has
a better suggestion for a forum/mailing list then please let me know.

Thanks,
Jeff



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