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GeezerVison is showing github.com — Support for type parameters · Issue #273 · MagicStack/MagicPython

Support for type parameters #273

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Support for type parameters#273
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Description

@alexr00
alexr00
opened on Jul 8, 2025
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Steps to Reproduce:

Consider the following code, using type parameters with python >= 3.13:

def f[T](x: T) -> T: ...

The -> is highlighted red, seemingly indicating a syntax error, although there is no syntax error.

Originally from @s-banach in microsoft/vscode#251997

Reacted by Tyler Yep, Connor Brinton, Richard Lewis, Asuka Minato, Kyle Into, Trevor Petersen and Danny Yang

Activity

  1. yangdanny97
    marked this as blocking on Mar 21, 2026
    • Hover markdown highlight breaks on functions w/ PEP 695 type parameters meta/pyrefly#1818
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