/usr/lib/python3/dist-packages/gitdb/const.py is in python3-gitdb 0.6.4-3build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 | BYTE_SPACE = b' '
NULL_BYTE = b'\0'
NULL_HEX_SHA = "0" * 40
NULL_BIN_SHA = NULL_BYTE * 20
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