socket.gethostbyname_ex(hostname) Translate a host name to IPv4 address format, extended interface. Return a triple (hostname, aliaslist, ipaddrlist) where hostname is the primary host name responding to the given ip_address, aliaslist is a (possibly empty) list of alternative host names for the same address, and ipaddrlist is a list of IPv4 addresses for the same interface on the same host (often but not always a single address). gethostbyname_ex() does not support IPv6 name resolution, and

maxlen Maximum size of a deque or None if unbounded. New in version 3.1.

Unpacker.reset(data) Resets the string buffer with the given data.

IMAP4.rename(oldmailbox, newmailbox) Rename mailbox named oldmailbox to newmailbox.

data The binary data encapsulated by the Binary instance. The data is provided as a bytes object.

add_cgi_vars() Insert CGI variables for the current request into the environ attribute.

Comment.data The content of the comment as a string. The attribute contains all characters between the leading <!-- and trailing -->, but does not include them.

dis.opname Sequence of operation names, indexable using the bytecode.

add_fallback(fallback) Add fallback as the fallback object for the current translation object. A translation object should consult the fallback if it cannot provide a translation for a given message.

mimetypes.guess_all_extensions(type, strict=True) Guess the extensions for a file based on its MIME type, given by type. The return value is a list of strings giving all possible filename extensions, including the leading dot ('.'). The extensions are not guaranteed to have been associated with any particular data stream, but would be mapped to the MIME type type by guess_type(). The optional strict argument has the same meaning as with the guess_type() function.