Guido van Rossum 350563223f Add Optional[] for all remaining cases of x: <type> = None (#1424) ...

* Final round of adding Optional[] to type of arguments with default = None
* Update Travis to use --no-implicit-optionals and clarify CONTRIBUTING.md

2017-06-21 10:50:21 -07:00

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2

Add flags to pass on --warn-unused-ignores and --no-implicit-optional to mypy (#1421)

2017-06-20 22:18:49 -07:00

2and3

Remove double Optional[] (#1423)

2017-06-21 09:54:40 -07:00

3

Add Optional[] for all remaining cases of x: <type> = None (#1424)

2017-06-21 10:50:21 -07:00