Inconsistent use of generics in type hints causes issues in Python 3.8

[OYCN]

Hi,

I've noticed that the codebase currently mixes built-in generics (e.g., list, set, dict) with typing module equivalents (e.g., List, Set, Dict) in type hints. This leads to runtime errors when using Python 3.8, where native generics like set[Tuple[str, Optional[int]]] are not yet supported.

onnxscript/onnxscript/ir/_tape.py

Line 19 in 2ae13be

UsedOpsets = set[Tuple[str, Optional[int]]]

onnxscript/onnxscript/optimizer/_constant_folding.py

Line 151 in 2ae13be

SymbolicValue = Union[ir.Value, list[ir.Value], ir.Shape]

Is there any plan to:

• Drop support for Python 3.8, or
• Update type hints to consistently use typing generics for compatibility?

[OYCN]

duplicated with #2233 #2234
closed