#!/usr/local/cpython-3.6/bin/python3

def main():
    encodings = [
        'ascii',
        'base64_codec',
        'big5',
        'big5hkscs',
        'bz2_codec',
        'charmap',
        'cp037',
        'cp1006',
        'cp1026',
        'cp1125',
        'cp1140',
        'cp1250',
        'cp1251',
        'cp1252',
        'cp1253',
        'cp1254',
        'cp1255',
        'cp1256',
        'cp1257',
        'cp1258',
        'cp273',
        'cp424',
        'cp437',
        'cp500',
        'cp65001',
        'cp720',
        'cp737',
        'cp775',
        'cp850',
        'cp852',
        'cp855',
        'cp856',
        'cp857',
        'cp858',
        'cp860',
        'cp861',
        'cp862',
        'cp863',
        'cp864',
        'cp865',
        'cp866',
        'cp869',
        'cp874',
        'cp875',
        'cp932',
        'cp949',
        'cp950',
        'euc_jis_2004',
        'euc_jisx0213',
        'euc_jp',
        'euc_kr',
        'gb18030',
        'gb2312',
        'gbk',
        'hex_codec',
        'hp_roman8',
        'hz',
        'idna',
        'iso2022_jp',
        'iso2022_jp_1',
        'iso2022_jp_2',
        'iso2022_jp_2004',
        'iso2022_jp_3',
        'iso2022_jp_ext',
        'iso2022_kr',
        'iso8859_1',
        'iso8859_10',
        'iso8859_11',
        'iso8859_13',
        'iso8859_14',
        'iso8859_15',
        'iso8859_16',
        'iso8859_2',
        'iso8859_3',
        'iso8859_4',
        'iso8859_5',
        'iso8859_6',
        'iso8859_7',
        'iso8859_8',
        'iso8859_9',
        'johab',
        'koi8_r',
        'koi8_t',
        'koi8_u',
        'kz1048',
        'latin_1',
        'mac_arabic',
        'mac_centeuro',
        'mac_croatian',
        'mac_cyrillic',
        'mac_farsi',
        'mac_greek',
        'mac_iceland',
        'mac_latin2',
        'mac_roman',
        'mac_romanian',
        'mac_turkish',
        'mbcs',
        'oem',
        'palmos',
        'ptcp154',
        'punycode',
        'quopri_codec',
        'raw_unicode_escape',
        'rot_13',
        'shift_jis',
        'shift_jis_2004',
        'shift_jisx0213',
        'tis_620',
        'undefined',
        'unicode_escape',
        'unicode_internal',
        'utf_16',
        'utf_16_be',
        'utf_16_le',
        'utf_32',
        'utf_32_be',
        'utf_32_le',
        'utf_7',
        'utf_8',
        'utf_8_sig',
    ]
    byte_string = bytes(range(256))

    print(len(byte_string))

    for encoding in encodings:
        string = byte_string.decode(encoding)
        hopefully_roundtripped_bytes = string.decode(encoding)
        if byte_string == hopefully_roundtripped_bytes:
            print('{} good'.format(encoding))

main()