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Title: Fix symbol table sub_table desync for non-simple annotation targets by youknowone · Pull Request #7300 · RustPython/RustPython · GitHub

Open Graph Title: Fix symbol table sub_table desync for non-simple annotation targets by youknowone · Pull Request #7300 · RustPython/RustPython

X Title: Fix symbol table sub_table desync for non-simple annotation targets by youknowone · Pull Request #7300 · RustPython/RustPython

Description: Non-simple annotations (subscript/attribute/parenthesized targets like a[0]: expr) were scanned in the annotation scope during symbol table analysis, creating sub_tables for any comprehensions. But codegen only compiles simple name annotations into annotate, so those sub_tables were never consumed. This caused subsequent simple annotations' comprehension sub_tables to get the wrong index, resulting in "the symbol 'X' must be present in the symbol table" errors. Fix: skip entering annotation scope for non-simple annotations since they are never compiled into annotate. Summary by CodeRabbit Refactor Adjusted how annotation scopes are treated so annotations are always handled as non-async. Improved annotation validation for assignment targets: retained detailed scanning for simple names while using safer validation for complex targets to avoid inconsistent internal annotation state.

Open Graph Description: Non-simple annotations (subscript/attribute/parenthesized targets like a[0]: expr) were scanned in the annotation scope during symbol table analysis, creating sub_tables for any comprehensions. But...

X Description: Non-simple annotations (subscript/attribute/parenthesized targets like a[0]: expr) were scanned in the annotation scope during symbol table analysis, creating sub_tables for any comprehensions. But...

Opengraph URL: https://github.com/RustPython/RustPython/pull/7300

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Fix symbol table sub_table desync for non-simple annotation targets https://github.com/RustPython/RustPython/pull/7300/files#top
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3ecdd0c Fix symbol table sub_table desync for non-simple annotation targets youknowone Mar 1, 2026 https://github.com/RustPython/RustPython/pull/7300/commits/3ecdd0c33e20a9ae0ee0611bdcbe7dd46b0b1872
8b61e74 Validate forbidden expressions in non-simple annotation targets youknowone Mar 2, 2026 https://github.com/RustPython/RustPython/pull/7300/commits/8b61e74cbdb0973eeff7801a7149366df97a7935
8bd6e97 Restore in_annotation flag before propagating error youknowone Mar 2, 2026 https://github.com/RustPython/RustPython/pull/7300/commits/8bd6e976986336061611bda7706265f535167b1f
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