Adding type hints to OpenStack (starting with Oslo)

Cyril Roelandt cyril at
Sat Jan 26 15:05:24 UTC 2019

Hello Doug,

On 01/26/19 09:02, Doug Hellmann wrote:
> We're still required to support python 2 through the beginning of the U
> cycle [5]. Is it possible to apply the type hints in a way that allows
> us to maintain that support?
> [5]

There are two ways to apply type hints:
1) Use a new syntax that only works with Python 3
2) Use comments (see my github branch, where comments starting with
"type:" can be found)

I used the second approach in order to not break Python 2 compatibility.


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