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Exclude broken typing-extensions version + fix import (#2460)
authorRichard Si <>
Sun, 29 Aug 2021 21:04:49 +0000 (17:04 -0400)
committerGitHub <>
Sun, 29 Aug 2021 21:04:49 +0000 (17:04 -0400)
Exclude broken typing-extensions version + fix import (#2460)

re. import, the ipynb code was assuming that typing-extensions would
always be available, but that's not the case! There's an environment
marker on the requirement meaning it won't get installed on 3.10 or
higher. The test suite didn't catch this issue since aiohttp pulls in
typing-extensions unconditionally.