/usr/lib/python2.7/dist-packages/sympy/galgebra.py is in python-sympy 1.1.1-5.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 | raise ImportError("""As of SymPy 1.0 the galgebra module is maintained separately at https://github.com/brombo/galgebra""")
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