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Merge pull request #5907 from bollwyvl/fix-asyncio-win-patch-version

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do not apply asyncio patch for tornado >=6.1
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Min RK 2020-12-14 14:23:32 +01:00 committed by GitHub
commit 3b974015c9
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1 changed files with 2 additions and 2 deletions
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notebook/notebookapp.py
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@ -2041,7 +2041,7 @@ class NotebookApp(JupyterApp):
def _init_asyncio_patch(self):
"""set default asyncio policy to be compatible with tornado
Tornado 6 (at least) is not compatible with the default
Tornado <6.1 is not compatible with the default
asyncio implementation on Windows
Pick the older SelectorEventLoopPolicy on Windows
@ -2054,7 +2054,7 @@ class NotebookApp(JupyterApp):
FIXME: if/when tornado supports the defaults in asyncio,
remove and bump tornado requirement for py38
"""
if sys.platform.startswith("win") and sys.version_info >= (3, 8):
if sys.platform.startswith("win") and sys.version_info >= (3, 8) and tornado.version_info < (6, 1):
import asyncio
try:
from asyncio import (