[New-bugs-announce] [issue44001] typing.Literal: args must be hashable, not immutable

[Jelle Zijlstra]

New submission from Jelle Zijlstra <jelle.zijlstra at gmail.com>:

After the changes from bpo-42345, the Literal documentation claims that "Literal objects will now raise a TypeError exception during equality comparisons if one of their parameters are not immutable." But in fact it's *unhashable* types that raise an error; mutable but hashable types such as functions or custom objects work fine.

I'll submit a PR for this but may wait until GH-25787 is resolved.

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assignee: Jelle Zijlstra
components: Documentation
messages: 392608
nosy: Jelle Zijlstra
priority: normal
severity: normal
status: open
title: typing.Literal: args must be hashable, not immutable
versions: Python 3.10, Python 3.9

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue44001>
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