heading(column, option=None, **kw) Query or modify the heading options for the specified column. If kw is not given, returns a dict of the heading option values. If option is specified then the value for that option is returned. Otherwise, sets the options to the corresponding values. The valid options/values are: text: text The text to display in the column heading. image: imageName Specifies an image to display to the right of the column heading. anchor: anchor Specifies how the

__call__(name, value) Retrieves the specialized header associated with name from the registry (using default_class if name does not appear in the registry) and composes it with base_class to produce a class, calls the constructed class’s constructor, passing it the same argument list, and finally returns the class instance created thereby.

re.split(pattern, string, maxsplit=0, flags=0) Split string by the occurrences of pattern. If capturing parentheses are used in pattern, then the text of all groups in the pattern are also returned as part of the resulting list. If maxsplit is nonzero, at most maxsplit splits occur, and the remainder of the string is returned as the final element of the list. >>> re.split('\W+', 'Words, words, words.') ['Words', 'words', 'words', ''] >>> re.split('(\W+)', 'Words, words, wor

class collections.ChainMap(*maps) A ChainMap groups multiple dicts or other mappings together to create a single, updateable view. If no maps are specified, a single empty dictionary is provided so that a new chain always has at least one mapping. The underlying mappings are stored in a list. That list is public and can be accessed or updated using the maps attribute. There is no other state. Lookups search the underlying mappings successively until a key is found. In contrast, writes, updat

random.betavariate(alpha, beta) Beta distribution. Conditions on the parameters are alpha > 0 and beta > 0. Returned values range between 0 and 1.

conn Holds the socket object connecting to the client.

any(iterable) Return True if any element of the iterable is true. If the iterable is empty, return False. Equivalent to: def any(iterable): for element in iterable: if element: return True return False

Node.prefix The part of the tagName preceding the colon if there is one, else the empty string. The value is a string, or None.

assertLogs(logger=None, level=None) A context manager to test that at least one message is logged on the logger or one of its children, with at least the given level. If given, logger should be a logging.Logger object or a str giving the name of a logger. The default is the root logger, which will catch all messages. If given, level should be either a numeric logging level or its string equivalent (for example either "ERROR" or logging.ERROR). The default is logging.INFO. The test passes if

get_matching_blocks() Return list of triples describing matching subsequences. Each triple is of the form (i, j, n), and means that a[i:i+n] == b[j:j+n]. The triples are monotonically increasing in i and j. The last triple is a dummy, and has the value (len(a), len(b), 0). It is the only triple with n == 0. If (i, j, n) and (i', j', n') are adjacent triples in the list, and the second is not the last triple in the list, then i+n != i' or j+n != j'; in other words, adjacent triples always des