Fix pickling

Fidget-Spinner · Fidget-Spinner · commit 050fa13f34c2 · 2020-11-19T12:47:47.000+08:00
diff --git a/Lib/_collections_abc.py b/Lib/_collections_abc.py
@@ -21,6 +21,8 @@
            "MappingView", "KeysView", "ItemsView", "ValuesView",
            "Sequence", "MutableSequence",
            "ByteString",
+           # To allow for pickling, not actually meant to be imported.
+           "_CallableGenericAlias"
            ]
 
 # This module has been renamed from collections.abc to _collections_abc to

Original file line number	Diff line number	Diff line change
`@@ -21,6 +21,8 @@`
`21`	`21`	`"MappingView", "KeysView", "ItemsView", "ValuesView",`
`22`	`22`	`"Sequence", "MutableSequence",`
`23`	`23`	`"ByteString",`
	`24`	`+ # To allow for pickling, not actually meant to be imported.`
	`25`	`+ "_CallableGenericAlias"`
`24`	`26`	`]`
`25`	`27`
`26`	`28`	`# This module has been renamed from collections.abc to _collections_abc to`