Arch Linux User Repository

Ah, I had misunderstood how dependency declarations within package work and assumed it would be available at build time as well. Fixed.

qt4 is not in dependency tree for makedeps, I only need to install (from aur): python2 python2-dbus python2-opengl python2-sip-pyqt4 sip4.

qt4 only is declared as dependency in package_pyqt4-common step.

@micwoj92: Can't reproduce. Builds fine both on my live system as well as in a clean chroot. Are you missing qmake-qt4 entirely or did your permissions just get messed up?

Build fails:

==> Starting build()...
Usage: python configure-ng.py [opts] [name=value] [name+=value]

configure-ng.py: error: '/usr/bin/qmake-qt4' is not an executable
==> ERROR: A failure occurred in build().
    Aborting...

Or if you'd like to push your luck, you can try this patch, on the basis of https://github.com/python/cpython/blob/v3.8.20/Objects/abstract.c#L292-L316

diff --git a/qpy/QtCore/qpycore_pyqtsignal.cpp b/qpy/QtCore/qpycore_pyqtsignal.cpp
--- a/qpy/QtCore/qpycore_pyqtsignal.cpp 2025-04-25 17:45:13.313875991 +0200
+++ b/qpy/QtCore/qpycore_pyqtsignal.cpp 2025-04-25 17:46:22.604618384 +0200
@@ -658,7 +658,11 @@ PyObject *qpycore_call_signal_overload(q
     if (!func)
         return 0;

+#if PY_MAJOR_VERSION >= 3
+    PyObject *result = PyObject_Call(func, args, kw);
+#else
     PyObject *result = PyCFunction_Call(func, args, kw);
+#endif

     Py_DECREF(func);

diff --git a/qpy/QtCore/qpycore_qtlib.cpp b/qpy/QtCore/qpycore_qtlib.cpp
--- a/qpy/QtCore/qpycore_qtlib.cpp  2025-04-25 17:45:13.314191046 +0200
+++ b/qpy/QtCore/qpycore_qtlib.cpp  2025-04-25 17:45:40.204713167 +0200
@@ -127,7 +127,11 @@ PyObject *qtlib_invoke_slot(const sipSlo

     for (;;)
     {
+#if PY_MAJOR_VERSION >= 3
+        PyObject *resobj = PyObject_CallObject(sfunc, sa);
+#else
         PyObject *resobj = PyEval_CallObject(sfunc, sa);
+#endif

         if (resobj)
         {
diff --git a/qpy/QtCore/qpycore_qstring.cpp b/qpy/QtCore/qpycore_qstring.cpp
--- a/qpy/QtCore/qpycore_qstring.cpp     2018-08-31 09:37:06.000000000 +0200
+++ b/qpy/QtCore/qpycore_qstring.cpp 2025-04-25 18:14:38.746056092 +0200
@@ -246,6 +246,9 @@ const char *qpycore_encode(PyObject **s,
     PyObject *obj = *s;
     const char *es = 0;
     SIP_SSIZE_T sz;
+#if PY_MAJOR_VERSION >= 3
+    Py_buffer view;
+#endif

     if (PyUnicode_Check(obj))
     {
@@ -291,17 +294,22 @@ const char *qpycore_encode(PyObject **s,
         es = PyBytes_AS_STRING(obj);
         Py_INCREF(obj);
     }
+    else if (PyObject_GetBuffer(obj, &view, PyBUF_SIMPLE) >= 0)
 #else
     else if (PyString_Check(obj))
     {
         es = PyString_AS_STRING(obj);
         Py_INCREF(obj);
     }
-#endif
     else if (PyObject_AsCharBuffer(obj, &es, &sz) >= 0)
+#endif
     {
         Py_INCREF(obj);
     }
+#if PY_MAJOR_VERSION >= 3
+    es = (const char*)view.buf;
+    PyBuffer_Release(&view);
+#endif

     if (es)
     {

Python 3.13 removed PyObject_AsCharBuffer. Since there really is no point in maintaining the Python 3 side, python-pyqt4 has been dropped. Only python2-pyqt4 is kept for the legacy applications. (Also dropped the phonon-qt4 optional dependency. Thanks for mentioning it, MarsSeed.)

building fails for me

../qpy/QtCore/qpycore_qstring.cpp:301:14: error: ‘PyObject_AsCharBuffer’ was not declared in this scope; did you mean ‘PyObject_CheckBuffer’?
  301 |     else if (PyObject_AsCharBuffer(obj, &es, &sz) >= 0)
      |              ^~~~~~~~~~~~~~~~~~~~~
      |              PyObject_CheckBuffer
make[1]: *** [Makefile:1320: qpycore_qstring.o] Error 1
make[1]: Leaving directory '/home/jonas/.cache/yay/pyqt4/src/PyQt4_gpl_x11-4.12.3/QtCore'
make: *** [Makefile:60: sub-QtCore-make_default-ordered] Error 2
==> ERROR: A failure occurred in build().
    Aborting...

Package builds fine for me with Python 3.12. IIRC it did indeed not build around the time you posted, but now it does. An update to some dependency must have fixed it.

Also I think phonon-qt4 is safe to drop from make/opt depends, as none of the existing applications that use python2-pyqt4 seem to require multimedia playback capability via phonon.

The build of python-pyqt4 is broken on Python 3.12.

It is likely that they can be fixed, but actually you can safely drop the Python3 package of pyqt4. As all its reverse dependencies are already broken, EOL, unmaintained, and pending deletion.