Function is_valid_dos_filename

pythonmemorymodule/pefile.py:2269–2274

(s)

def is_valid_dos_filename(s):
    if s is None or not isinstance(s, (str, bytes, bytearray)):
        return False
    # Allow path separators as import names can contain directories.
    allowed = allowed_filename + b"\\/"
    return all(c in allowed for c in set(s))


# Check if an imported name uses the valid accepted characters expected in