Building PythonQT on macOS?

hsetlik

Hi,
I've been trying to embed Python in a Qt/C++ application using PythonQt. For context I'm running Catalina 10.15.7 with Qt version 5.15.2. Trying to build PythonQt as per these instructions with qmake gives a linker error about the python installation:

ld: can't map file, errno=22 file '/usr/local/Cellar/python@3.9/3.9.6/Frameworks' for architecture x86_64

I imagine this has to do with either the actual python installation from Homebrew or the paths given in the 'python.prf' file, which right now are set like so:

macx {
  # for macx you need to have the Python development kit installed as framework
  INCLUDEPATH += /usr/local/Cellar/python@3.9/3.9.6/Frameworks/Python.framework/Headers
  LIBS += /usr/local/Cellar/python@3.9/3.9.6/Frameworks -framework Python
}

Much appreciated if anyone knows what I'm doing wrong here with the include paths or the python installation, thanks.

SGaist

Hi and welcome to devnet,

You forgot the -F before the path your custom Python framework.

hsetlik

Oh thank you- it's not complaining about the framework path anymore and qmake finishes successfully but trying to actually run any of the example projects gives me this:

:-1: error: No rule to make target `/Qt/5.15.2/clang_64/lib/libQt5UiTools_debug.a', needed by `../../lib/libPythonQt_QtAll-Qt5-Python3.9_d.3.2.0.dylib'.  Stop.

Is this some kind of an incompatibility issue with one of Qt's libs?

SGaist

Looks like a build error, no ?

Are you using a pre-built version of Qt ?