Raise FileNotFoundError when opening an empty path by radarhere · Pull Request #9048

Raise FileNotFoundError when opening an empty path by radarhere · Pull Request #9048 · python-pillow/Pillow

Merged

hugovk merged 1 commit intopython-pillow:mainfrom

radarhere:empty_path

Jun 30, 2025

Merged

Raise FileNotFoundError when opening an empty path#9048
hugovk merged 1 commit intopython-pillow:mainfrom
radarhere:empty_path

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radarhere commented
Jun 30, 2025

Resolves #9047

The following code didn't consider the possibility of an empty filename being passed in by the user, and tries to treat it as a file handle instead.

Pillow/src/PIL/Image.py

Lines 3510 to 3518 in 2b39f75

	filename: str \| bytes = ""
	if is_path(fp):
	filename = os.fspath(fp)

	if filename:
	fp = builtins.open(filename, "rb")
	exclusive_fp = True
	else:
	fp = cast(IO[bytes], fp)