__bytes__() Equivalent to as_bytes(). Allows bytes(msg) to produce a bytes object containing the formatted

mimetypes.add_type(type, ext, strict=True) Add a mapping from the MIME type type to the extension ext. When

add(message) __setitem__(key, message) update(arg)

MimeTypes.types_map_inv Tuple containing two dictionaries, mapping MIME types to a list of filename extensions: the first dictionary

binascii.b2a_hex(data) binascii.hexlify(data) Return the hexadecimal representation of the binary data

__contains__(key) Return True if key corresponds to a message, False otherwise.

mailcap.getcaps() Returns a dictionary mapping MIME types to a list of mailcap file entries. This dictionary must be passed

class json.JSONDecoder(object_hook=None, parse_float=None, parse_int=None, parse_constant=None, strict=True, object_pairs_hook=None) Simple

lock() unlock() Three locking mechanisms are used—dot locking and, if available, the flock() and lockf()

unlock() Maildir mailboxes do not support (or require) locking, so these methods do nothing.