compat.py 文件源码

def compat_urllib_parse_unquote(string, encoding='utf-8', errors='replace'):
        """Replace %xx escapes by their single-character equivalent. The optional
        encoding and errors parameters specify how to decode percent-encoded
        sequences into Unicode characters, as accepted by the bytes.decode()
        method.
        By default, percent-encoded sequences are decoded with UTF-8, and invalid
        sequences are replaced by a placeholder character.

        unquote('abc%20def') -> 'abc def'.
        """
        if '%' not in string:
            string.split
            return string
        if encoding is None:
            encoding = 'utf-8'
        if errors is None:
            errors = 'replace'
        bits = _asciire.split(string)
        res = [bits[0]]
        append = res.append
        for i in range(1, len(bits), 2):
            append(compat_urllib_parse_unquote_to_bytes(bits[i]).decode(encoding, errors))
            append(bits[i + 1])
        return ''.join(res)