py-qscintilla-qt5 @2.11.5_0: cannot load library when importing in Python

[reneeotten (Renee Otten)]

The installation of py-qscintilla-qt5 appears to finish correctly, but importing the package fails with:

>>> import PyQt5.Qsci
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: dlopen(/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/PyQt5/Qsci.so, 2): Library not loaded: @rpath/libqscintilla2_qt5.15.dylib
  Referenced from: /opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/PyQt5/Qsci.so
  Reason: image not found

and the output of otool is:

> otool -L /opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/PyQt5/Qsci.so
/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/site-packages/PyQt5/Qsci.so:
	@rpath/libqscintilla2_qt5.15.dylib (compatibility version 15.0.0, current version 15.0.0)
	/opt/local/libexec/qt5/lib/QtPrintSupport.framework/Versions/5/QtPrintSupport (compatibility version 5.14.0, current version 5.14.2)
	/opt/local/libexec/qt5/lib/QtWidgets.framework/Versions/5/QtWidgets (compatibility version 5.14.0, current version 5.14.2)
	/opt/local/libexec/qt5/lib/QtMacExtras.framework/Versions/5/QtMacExtras (compatibility version 5.14.0, current version 5.14.2)
	/opt/local/libexec/qt5/lib/QtGui.framework/Versions/5/QtGui (compatibility version 5.14.0, current version 5.14.2)
	/System/Library/Frameworks/AppKit.framework/Versions/C/AppKit (compatibility version 45.0.0, current version 1671.60.107)
	/System/Library/Frameworks/Metal.framework/Versions/A/Metal (compatibility version 1.0.0, current version 162.2.0)
	/opt/local/libexec/qt5/lib/QtCore.framework/Versions/5/QtCore (compatibility version 5.14.0, current version 5.14.2)
	/System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration (compatibility version 1.0.0, current version 1.0.0)
	/System/Library/Frameworks/IOKit.framework/Versions/A/IOKit (compatibility version 1.0.0, current version 275.0.0)
	/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL (compatibility version 1.0.0, current version 1.0.0)
	/System/Library/Frameworks/AGL.framework/Versions/A/AGL (compatibility version 1.0.0, current version 1.0.0)
	/usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.4)
	/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.250.1)

[reneeotten (Renee Otten)]

In 3d3a2d7864b7619cd0b8b0f271456b10c3b8693d/macports-ports (master):

qscintilla-qt5: fix rpath in install_name

Closes: #60796
See: #60845