operator.contains(a, b) operator.__contains__(a, b) Return the outcome of the test b in a. Note the reversed operands.

math.asin(x) Return the arc sine of x, in radians.

version

os.getgid() Return the real group id of the current process. Availability: Unix.

Cookie.comment String comment from the server explaining the function of this cookie, or None.

Attributes.getType(name) Returns the type of the attribute name, which is normally 'CDATA'.

protocol_version This specifies the HTTP protocol version used in responses. If set to 'HTTP/1.1', the server will permit HTTP persistent connections; however, your server must then include an accurate Content-Length header (using send_header()) in all of its responses to clients. For backwards compatibility, the setting defaults to 'HTTP/1.0'.

NNTP.help(*, file=None) Send a HELP command. Return a pair (response, list) where list is a list of help strings.

class unittest.TestCase(methodName='runTest') Instances of the TestCase class represent the logical test units in the unittest universe. This class is intended to be used as a base class, with specific tests being implemented by concrete subclasses. This class implements the interface needed by the test runner to allow it to drive the tests, and methods that the test code can use to check for and report various kinds of failure. Each instance of TestCase will run a single base method: the me

class email.parser.BytesFeedParser(_factory=email.message.Message) Works exactly like FeedParser except that the input to the feed() method must be bytes and not string. New in version 3.2.