Compatibility Issue: Pytype Fails with Pip 25.1 Due to SyntaxError #1909
Description
It seems that the recent update to Pip 25.1 is causing a syntax-related problem with Pytype.
https://pypi.org/project/pip/#history
[2025-05-02T12:22:14.425Z] Traceback (most recent call last):
[2025-05-02T12:22:14.425Z] File "/usr/lib/python3.9/py_compile.py", line 144, in compile
[2025-05-02T12:22:14.425Z] code = loader.source_to_code(source_bytes, dfile or file,
[2025-05-02T12:22:14.425Z] File "<frozen importlib._bootstrap_external>", line 918, in source_to_code
[2025-05-02T12:22:14.425Z] File "<frozen importlib._bootstrap>", line 228, in _call_with_frames_removed
[2025-05-02T12:22:14.425Z] File "/usr/local/lib/python3.9/dist-packages/pytype/tools/merge_pyi/test_data/parse_error.py", line 2
[2025-05-02T12:22:14.425Z] def f(*): pass
[2025-05-02T12:22:14.425Z] ^
[2025-05-02T12:22:14.425Z] SyntaxError: named arguments must follow bare *
[2025-05-02T12:22:14.425Z]
[2025-05-02T12:22:14.425Z] During handling of the above exception, another exception occurred:
[2025-05-02T12:22:14.425Z]
[2025-05-02T12:22:14.426Z] Traceback (most recent call last):
[2025-05-02T12:22:14.426Z] File "/usr/lib/python3.9/compileall.py", line 238, in compile_file
[2025-05-02T12:22:14.426Z] ok = py_compile.compile(fullname, cfile, dfile, True,
[2025-05-02T12:22:14.426Z] File "/usr/lib/python3.9/py_compile.py", line 150, in compile
[2025-05-02T12:22:14.426Z] raise py_exc
[2025-05-02T12:22:14.426Z] py_compile.PyCompileError: File "/usr/local/lib/python3.9/dist-packages/pytype/tools/merge_pyi/test_data/parse_error.py", line 2
[2025-05-02T12:22:14.426Z] def f(*): pass
[2025-05-02T12:22:14.426Z] ^
[2025-05-02T12:22:14.426Z] SyntaxError: named arguments must follow bare *