math.sin(x) Return the sine of x radians.

curses.ascii.isalpha(c) Checks for an ASCII alphabetic character; it is equivalent to isupper(c) or islower(c).

random.choice(seq) Return a random element from the non-empty sequence seq. If seq is empty, raises IndexError.

HTTPErrorProcessor.http_response() Process HTTP error responses. For 200 error codes, the response object is returned immediately. For non-200 error codes, this simply passes the job on to the protocol_error_code() handler methods, via OpenerDirector.error(). Eventually, HTTPDefaultErrorHandler will raise an HTTPError if no other handler handles the error.

exception DeprecationWarning Base class for warnings about deprecated features.

IMAP4.expunge() Permanently remove deleted items from selected mailbox. Generates an EXPUNGE response for each deleted message. Returned data contains a list of EXPUNGE message numbers in order received.

DOMImplementation.createDocument(namespaceUri, qualifiedName, doctype) Return a new Document object (the root of the DOM), with a child Element object having the given namespaceUri and qualifiedName. The doctype must be a DocumentType object created by createDocumentType(), or None. In the Python DOM API, the first two arguments can also be None in order to indicate that no Element child is to be created.

Cookie.discard True if this is a session cookie.

Panel.set_userptr(obj) Set the panel’s user pointer to obj. This is used to associate an arbitrary piece of data with the panel, and can be any Python object.

IncrementalParser.close() Assume the end of the document. That will check well-formedness conditions that can be checked only at the end, invoke handlers, and may clean up resources allocated during parsing.