Log Message:
py-distlib: updated to 0.3.7

0.3.7

- database

    - Handle newlines when parsing metadata.

- markers

    - Use version comparison logic for python_full_version. Thanks to Albert
      Peschar for the patch.

    - Simplify code with a set comprehension. Thanks to Christian Clauss for
      the patch.

- scripts

    - Fix shebang computation for source builds of Python. Thanks to Eli
      Schwartz for the patch.

- util

    - Extract tarfiles more safely by incorporating tarfile filters. Thanks to
      Petr Viktorin for the patch.

    - Check for 'has_cert' attribute before using it. Thanks to Lumir Balhar for
      the patch.

    - Fix: Handle parsing of export entries to allow script names such as
      "," or ",foo". Thanks to Flavio Amurrio for the report.

- versions

    - Fix: Improve conformance to PEP440. Thanks to GitHub user con-f-use
      for the report.

In addition to the above, an SPDX license identifier is now used.