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Here's a Python shortcut: Instead of... from base64 import b64decode b64decode(foo) You can do... foo.decode('base64') Encoding works too. As w

• mahmoudimus 16y ago
  It is worth noting there's a difference in the base64.b64encode function, vs the default MIME Base64 codec on strings[2]. Per RFC2045[1]: (Soft Line Breaks) The Quoted-Printable encoding REQUIRES that encoded lines be no more than 76 characters long. If longer lines are to be encoded with the Quoted-Printable encoding, "soft" line breaks Due to the insertion of these soft-line breaks, encoding is not the same, as you can verify yourself: import os import base64 import unittest class Base64Test(unittest.TestCase): def test_long_string_base64_decoding_and_encoding(self): byte_seq = os.urandom(500) mime64_encoded = byte_seq.encode('base64') self.assertNotEqual(base64.b64encode(byte_seq), mime64_encoded) self.assertEqual(base64.b64decode(mime64_encoded), mime64_encoded.decode('base64')) if __name__ == '__main__': unittest.main() Decoding, as you can see above, is fine. This makes a difference when encoding a really long string in an HTTP header. [1] http://www.ietf.org/rfc/rfc2045.txt http://www.ietf.org/rfc/rfc2045.txt [2] http://docs.python.org/library/codecs.html#standard-encodings http://docs.python.org/library/codecs.html#standard-encoding...