Make the output of incremental compatible with black formatting tool

[rodrigc]

Fixes #55

[codecov]

Codecov Report

Merging #60 into master will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##           master      #60   +/-   ##
=======================================
  Coverage   96.86%   96.86%           
=======================================
  Files           5        5           
  Lines         733      733           
  Branches       68       68           
=======================================
  Hits          710      710           
  Misses         11       11           
  Partials       12       12           

Impacted Files	Coverage Δ
src/incremental/tests/test_update.py	100.00% <ø> (ø)
src/incremental/update.py	98.23% <100.00%> (ø)

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[wsanchez]

This PR does a lot more than the header; making incremental use black itself is not related to making incremental's output compatible with black.

Given that making incremental's output compatible with black is important to clients, I think it would be important to do just that in a PR, so that we can document that change independently.

[rodrigc]

This PR does a lot more than the header; making incremental use black itself is not related to making incremental's output compatible with black.

Given that making incremental's output compatible with black is important to clients, I think it would be important to do just that in a PR, so that we can document that change independently.

OK, I removed all parts of the PR which formats the incremental code itself with black.
This PR just contains the changes which make the output black compatible

[rodrigc]

I've moved all patches which reformats the incremental tree with black to #64