def auto_decode()

in images/airflow/2.9.2/python/mwaa/utils/encoding.py [0:0]

• 13 lines of code
• 7 McCabe index (conditional complexity)

def auto_decode(data: bytes) -> str:
    """Check a bytes string for a BOM to correctly detect the encoding

    Fallback to locale.getpreferredencoding(False) like open() on Python3"""
    for bom, encoding in BOMS:
        if data.startswith(bom):
            return data[len(bom) :].decode(encoding)
    # Lets check the first two lines as in PEP263
    for line in data.split(b"\n")[:2]:
        if line[0:1] == b"#" and ENCODING_RE.search(line):
            result = ENCODING_RE.search(line)
            assert result is not None
            encoding = result.groups()[0].decode("ascii")
            return data.decode(encoding)
    return data.decode(
        locale.getpreferredencoding(False) or sys.getdefaultencoding(),
    )