asyncio.Task.print_stack is described by documentation as having a default output file of sys.stderr. However, the default None is passed all the way to print statements, leading to an actual default of sys.stdout.

Linked PRs

• gh-97725: Fix documentation for the default file of Task.print_stack #101652
• [3.11] gh-97725: Fix documentation for the default file of asyncio.Task.print_stack (#101652) #101653
• [3.10] gh-97725: Fix documentation for the default file of asyncio.Task.print_stack (#101652) #101654