[3.9] bpo-42381: Allow walrus in set literals and set comprehensions (GH-23332)#23333

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pablogsal merged 1 commit intopython:3.9from

pablogsal:backport-b0aba1f-3.9

Nov 18, 2020

Commits on Nov 17, 2020

[3.9] bpo-42381: Allow walrus in set literals and set comprehensions (GH-23332)
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