bytearray.rjust(width[, fillbyte]) Return a copy of the object right justified in a sequence of length width. Padding is done using the specified fillbyte (default is an ASCII space). For bytes objects, the original sequence is returned if width is less than or equal to len(s). Note The bytearray version of this method does not operate in place - it always produces a new object, even if no changes were made.

platform.release() Returns the system’s release, e.g. '2.2.0' or 'NT' An empty string is returned if the value cannot be determined.

get_body_encoding() Return the content transfer encoding used for body encoding. This is either the string quoted-printable or base64 depending on the encoding used, or it is a function, in which case you should call the function with a single argument, the Message object being encoded. The function should then set the Content-Transfer-Encoding header itself to whatever is appropriate. Returns the string quoted-printable if body_encoding is QP, returns the string base64 if body_encoding is B

os.fchown(fd, uid, gid) Change the owner and group id of the file given by fd to the numeric uid and gid. To leave one of the ids unchanged, set it to -1. See chown(). As of Python 3.3, this is equivalent to os.chown(fd, uid, gid). Availability: Unix.

class urllib.request.DataHandler Open data URLs. New in version 3.4.

keys() This method returns a list of column names. Immediately after a query, it is the first member of each tuple in Cursor.description.

is_assigned() Return True if the symbol is assigned to in its block.

CookiePolicy.netscape Implement Netscape protocol.

class xml.sax.xmlreader.AttributesNSImpl(attrs, qnames) Namespace-aware variant of AttributesImpl, which will be passed to startElementNS(). It is derived from AttributesImpl, but understands attribute names as two-tuples of namespaceURI and localname. In addition, it provides a number of methods expecting qualified names as they appear in the original document. This class implements the AttributesNS interface (see section The AttributesNS Interface).

Logger.exception(msg, *args, **kwargs) Logs a message with level ERROR on this logger. The arguments are interpreted as for debug(). Exception info is added to the logging message. This method should only be called from an exception handler.