Split from #148186
The diff can be re-generated with the following code in the repo root directory on main branch:
```python
import re
from pathlib import Path
def replace(m: re.Match) -> str:
s = m.group()
if '\n' not in s:
return s
indent = m.group("indent")
varnames = s.removesuffix("None").replace("=", "").replace("(", "").replace(")", "").split()
return "\n".join(
[
f"{indent}(",
*(f"{indent} {varname}," for varname in varnames),
f"{indent}) = (None,) * {len(varnames)}",
]
)
file = Path('test/inductor/s429861_repro.py')
content = file.read_text(encoding='utf-8')
new_content = re.sub(
r"^(?P<indent> *)\w+ *=(\s*(\(\s*\w+\s*\)|\w+)\s*=\s*)+None$",
replace,
content,
flags=re.MULTILINE,
)
file.write_text(new_content, encoding='utf-8')
```
Pull Request resolved: https://github.com/pytorch/pytorch/pull/148554
Approved by: https://github.com/jansel
