write_byte(byte) Write the integer byte into memory at the current position of the file pointer; the file position is advanced by 1. If the mmap was created with ACCESS_READ, then writing to it will raise a TypeError exception.

UnexpectedException.test The DocTest object that was being run when the example failed.

heapq.merge(*iterables, key=None, reverse=False) Merge multiple sorted inputs into a single sorted output (for example, merge timestamped entries from multiple log files). Returns an iterator over the sorted values. Similar to sorted(itertools.chain(*iterables)) but returns an iterable, does not pull the data into memory all at once, and assumes that each of the input streams is already sorted (smallest to largest). Has two optional arguments which must be specified as keyword arguments. key

class netrc.netrc([file]) A netrc instance or subclass instance encapsulates data from a netrc file. The initialization argument, if present, specifies the file to parse. If no argument is given, the file .netrc in the user’s home directory will be read. Parse errors will raise NetrcParseError with diagnostic information including the file name, line number, and terminating token. If no argument is specified on a POSIX system, the presence of passwords in the .netrc file will raise a NetrcPa

audioop.bias(fragment, width, bias) Return a fragment that is the original fragment with a bias added to each sample. Samples wrap around in case of overflow.

class tkinter.ttk.Notebook add(child, **kw) Adds a new tab to the notebook. If window is currently managed by the notebook but hidden, it is restored to its previous position. See Tab Options for the list of available options. forget(tab_id) Removes the tab specified by tab_id, unmaps and unmanages the associated window. hide(tab_id) Hides the tab specified by tab_id. The tab will not be displayed, but the associated window remains managed by the notebook and its configuration

first_line The first source line of the code object (if available)

itertools.product(*iterables, repeat=1) Cartesian product of input iterables. Roughly equivalent to nested for-loops in a generator expression. For example, product(A, B) returns the same as ((x,y) for x in A for y in B). The nested loops cycle like an odometer with the rightmost element advancing on every iteration. This pattern creates a lexicographic ordering so that if the input’s iterables are sorted, the product tuples are emitted in sorted order. To compute the product of an iterable

AbstractEventLoop.remove_writer(fd) Stop watching the file descriptor for write availability.

UUID.urn The UUID as a URN as specified in RFC 4122.