Log Message:
py-netaddr: updated to 0.7.20

Changes since 0.7.19

* Fixed returning from an iterator on Python 3.7+, by Sergey Kozlov.
* Fixed Python 3.8 SyntaxWarning on using `is not` with a string literal, by \ 
Stefan Nordhausen.
* Fixed DeprecationWarnings by using raw strings for escape characters used in \ 
regexes, by Sean McGinnis.
* Improved IPGlob documentation, by obkmeta.
* Fixed exception creation in corner cases by explicitly passin error message \ 
params as tuples, by
  Matthias Urlichs.
* Stopped manually replacing shebang of an included script.
* Stopped using __file__ in all code that's expected to run in environments that \ 
don't support it
  (like PyOxidizer-produced binaries).
* Updated all databases included in the package.

Specific bug fixes addressed in this release

FIXED Issue 182: https://github.com/netaddr/netaddr/issues/182
    - test_ip_splitter_remove_prefix_larger_than_input_range fails with python 3.7

FIXED Issue 206: https://github.com/netaddr/netaddr/issues/206
    - ""is not" with a literal." SyntaxWarning

FIXED Issue 198: https://github.com/netaddr/netaddr/issues/198
    - oui databases are outdated

FIXED Issue 188: https://github.com/netaddr/netaddr/issues/188
    - Avoid use of __file__

Miscellanea

- Python 2 versions older than 2.7 and Python 3 versions older than 3.5 should \ 
be considered
  unsupported. No incompatible code has been introduced to the best of our \ 
knowledge but
  there's no CI infrastructure in place to verify this and if there are any \ 
issues with
  those versions they won't be fixed.
- Consequently, Python 2.7 and 3.5 support should be considered deprecated as 2.7 has
  reached its end-of-life already and 3.5 will hit it soon.
- A CI setup has been introduced which allows us to test on a variety of Python \ 
versions
  on all Mac, Linux and Windows.