cmath.sin(x) Return the sine of x.

Unpacker.unpack_double() Unpacks a double-precision floating point number, similarly to unpack_float().

xmlrpc.client.loads(data, use_datetime=False, use_builtin_types=False) Convert an XML-RPC request or response into Python objects, a (params, methodname). params is a tuple of argument; methodname is a string, or None if no method name is present in the packet. If the XML-RPC packet represents a fault condition, this function will raise a Fault exception. The use_builtin_types flag can be used to cause date/time values to be presented as datetime.datetime objects and binary data to be presen

HMAC.name The canonical name of this HMAC, always lowercase, e.g. hmac-md5. New in version 3.4.

class email.headerregistry.UnstructuredHeader An “unstructured” header is the default type of header in RFC 5322. Any header that does not have a specified syntax is treated as unstructured. The classic example of an unstructured header is the Subject header. In RFC 5322, an unstructured header is a run of arbitrary text in the ASCII character set. RFC 2047, however, has an RFC 5322 compatible mechanism for encoding non-ASCII text as ASCII characters within a header value. When a value conta

DocumentType.systemId The system identifier for the external subset of the document type definition. This will be a URI as a string, or None.

FTP.retrlines(cmd, callback=None) Retrieve a file or directory listing in ASCII transfer mode. cmd should be an appropriate RETR command (see retrbinary()) or a command such as LIST or NLST (usually just the string 'LIST'). LIST retrieves a list of files and information about those files. NLST retrieves a list of file names. The callback function is called for each line with a string argument containing the line with the trailing CRLF stripped. The default callback prints the line to sys.std

visit(node) Visit a node. The default implementation calls the method called self.visit_classname where classname is the name of the node class, or generic_visit() if that method doesn’t exist.

timeit.repeat(stmt='pass', setup='pass', timer=, repeat=3, number=1000000, globals=None) Create a Timer instance with the given statement, setup code and timer function and run its repeat() method with the given repeat count and number executions. The optional globals argument specifies a namespace in which to execute the code. Changed in version 3.5: The optional globals parameter was added.

expectedFailures A list containing 2-tuples of TestCase instances and strings holding formatted tracebacks. Each tuple represents an expected failure of the test case.