All the lines that start with line numbers in Qt documentation for C++ are missing in The PySide class reference documentation.

All the lines that start with line numbers in Qt documentation for C++ are missing in The PySide class reference documentation.

here is an example :
https://deptinfo-ensip.univ-poitiers.fr/ENS/pyside-docs/PySide/QtGui/QMessageBox.html?highlight=qmessagebox.about#PySide.QtGui.PySide.QtGui.QMessageBox.about

where is the four locations ???