hashin cannot handle leading zeros in package version numbers #39
Description
Pip can install packages with a missing leading zero in the version number e.g. Unidecode==0.04.20:
I was passing the output of pip freeze into hashin and encountered this problem.
/tmp > bin/pip install Unidecode==0.4.20 # or Unidecode==0.04.20
Collecting Unidecode==0.4.20
Using cached Unidecode-0.04.20-py2.py3-none-any.whl
Installing collected packages: Unidecode
Successfully installed Unidecode-0.4.20
/tmp > bin/pip freeze
Unidecode==0.4.20
But hashin cannot handle this.
/tmp > bin/hashin Unidecode==0.4.20
Traceback (most recent call last):
File "bin/hashin", line 11, in <module>
sys.exit(main())
File "/tmp/local/lib/python2.7/site-packages/hashin.py", line 400, in main
verbose=args.verbose,
File "/tmp/local/lib/python2.7/site-packages/hashin.py", line 96, in run
run_single_package(spec, *args, **kwargs)
File "/tmp/local/lib/python2.7/site-packages/hashin.py", line 119, in run_single_package
algorithm=algorithm
File "/tmp/local/lib/python2.7/site-packages/hashin.py", line 363, in get_package_hashes
raise PackageError('No data found for version {0}'.format(version))
hashin.PackageError: No data found for version 0.4.20
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