/usr/lib/python3/dist-packages/antlr3/ is in python3-antlr3 3.5.2-4.
This file is owned by root:root, with mode 0o755.
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/usr/lib/python3/dist-packages/antlr3/__init__.py
/usr/lib/python3/dist-packages/antlr3/compat.py
/usr/lib/python3/dist-packages/antlr3/constants.py
/usr/lib/python3/dist-packages/antlr3/debug.py
/usr/lib/python3/dist-packages/antlr3/dfa.py
/usr/lib/python3/dist-packages/antlr3/exceptions.py
/usr/lib/python3/dist-packages/antlr3/main.py
/usr/lib/python3/dist-packages/antlr3/recognizers.py
/usr/lib/python3/dist-packages/antlr3/streams.py
/usr/lib/python3/dist-packages/antlr3/tokens.py
/usr/lib/python3/dist-packages/antlr3/tree.py
/usr/lib/python3/dist-packages/antlr3/treewizard.py