[New-bugs-announce] [issue41022] AST sum types is unidentifiable after ast.Constant became a base class

[Batuhan Taskaya]

New submission from Batuhan Taskaya <isidentical at gmail.com>:

Previously (before ast.Constant became a base class for deprecated node classes), Sum types were identifiable with this rule;

len(node_class.__subclasses__()) > 0

Now, this is also valid for the ast.Constant itself because of ast.Str, ast.Num etc. bases it. The bad side is, it makes (complex) sum classes unidentifiable.

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components: Library (Lib)
messages: 371797
nosy: BTaskaya, pablogsal, serhiy.storchaka
priority: normal
severity: normal
status: open
title: AST sum types is unidentifiable after ast.Constant became a base class

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue41022>
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