/usr/share/sip/PyQt5/QtQml/ is in pyqt5-dev 5.7+dfsg-5.
This file is owned by root:root, with mode 0o755.
..
/usr/share/sip/PyQt5/QtQml/QtQmlmod.sip
/usr/share/sip/PyQt5/QtQml/qjsengine.sip
/usr/share/sip/PyQt5/QtQml/qjsvalue.sip
/usr/share/sip/PyQt5/QtQml/qjsvalueiterator.sip
/usr/share/sip/PyQt5/QtQml/qmlattachedpropertiesobject.sip
/usr/share/sip/PyQt5/QtQml/qmlregistertype.sip
/usr/share/sip/PyQt5/QtQml/qpyqmllistproperty.sip
/usr/share/sip/PyQt5/QtQml/qqmlabstracturlinterceptor.sip
/usr/share/sip/PyQt5/QtQml/qqmlapplicationengine.sip
/usr/share/sip/PyQt5/QtQml/qqmlcomponent.sip
/usr/share/sip/PyQt5/QtQml/qqmlcontext.sip
/usr/share/sip/PyQt5/QtQml/qqmlengine.sip
/usr/share/sip/PyQt5/QtQml/qqmlerror.sip
/usr/share/sip/PyQt5/QtQml/qqmlexpression.sip
/usr/share/sip/PyQt5/QtQml/qqmlextensionplugin.sip
/usr/share/sip/PyQt5/QtQml/qqmlfileselector.sip
/usr/share/sip/PyQt5/QtQml/qqmlincubator.sip
/usr/share/sip/PyQt5/QtQml/qqmllist.sip
/usr/share/sip/PyQt5/QtQml/qqmlnetworkaccessmanagerfactory.sip
/usr/share/sip/PyQt5/QtQml/qqmlparserstatus.sip
/usr/share/sip/PyQt5/QtQml/qqmlproperty.sip
/usr/share/sip/PyQt5/QtQml/qqmlpropertymap.sip
/usr/share/sip/PyQt5/QtQml/qqmlpropertyvaluesource.sip
/usr/share/sip/PyQt5/QtQml/qqmlscriptstring.sip