gh-142737: Handle lost io.open in _Py_FindSourceFile
#225733
| Job | Run time |
|---|---|
| 4s | |
| 6s | |
| 10s |
io.open in _Py_FindSourceFile
#225733
| Job | Run time |
|---|---|
| 4s | |
| 6s | |
| 10s |