asyncio.graph.format_call_graph() should use io.Writer instead of typing.TextIO

[srittau]

Feature or enhancement

Proposal:

The file argument to format_call_graph() gets forwarded to print(file), which is annotated as _typeshed.SupportsWrite[str] in typeshed. SupportsWrite is typeshed's legacy variant of io.Writer.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Linked PRs

• gh-133893: asyncio.graph: Replace TextIO annotation with io.Writer #133894
• [3.14] gh-133893: asyncio.graph: Replace TextIO annotation with io.Writer (GH-133894) #133901