py-configparser: updated to 3.7.3

3.7.3
* Temporarily degrade to use ASCII for author's name.

3.7.2
(also released as 3.8.0)

* Repackaged using setuptools_scm for file discovery and other features
  from skeleton <https://pypi.org/project/skeleton_.

* Package now unconditionally installs the  configparser module.
  Doing so allowed for the project to release a universal wheel for
  Python 2 and Python 3. Even though the configparser module is
  installed unconditionally on Python 3, it's expected that it will be
  masked in that environment by the module in stdlib, so the same
  interface applies.

3.7.1
* Fixed issue on Python 2.x when future is present.

3.7.0
* Merge functionality from Python 3.7.2. Now ConfigParser accepts bytes
  paths as well as any
  PathLike <https://docs.python.org/3/library/os.html#os.PathLike>_
  object, including those found in the pathlib2 backport.

(adam)