Log Message:
py-tlsh: update to 4.7.2. Changes:

4.7.2:
This Python module supercedes the python-tlsh package on PyPi.
The improvements in 4.7.2, are that we added additional functions to Python
* lvalue
* q1ratio
* q2ratio
* checksum
* bucket_value
* is_valid

4.5.0:
* fixed this package so that it works on Windows
* compatibility with VirusTotal adoption of TLSH: updated to the T1 hash
  format with backwards compatibility for old hashes
* fixed the q3=0 divide by zero bug [issue 79]

pkgsrc changes:
- Switch to PyPi upstream