/usr/share/python-support/python-libuser.public is in python-libuser 1:0.56.9.dfsg.1-1.2ubuntu2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 | pyversions=2.7
/usr/lib/pyshared/python2.7/libuser.so
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