inspect.isdatadescriptor(object) Return true if the object is a data descriptor. Data descriptors have both a __get__ and a __set__ method. Examples are properties (defined in Python), getsets, and members. The latter two are defined in C and there are more specific tests available for those types, which is robust across Python implementations. Typically, data descriptors will also have __name__ and __doc__ attributes (properties, getsets, and members have both of these attributes), but this

coroutine asyncio.wait_for(fut, timeout, *, loop=None) Wait for the single Future or coroutine object to complete with timeout. If timeout is None, block until the future completes. Coroutine will be wrapped in Task. Returns result of the Future or coroutine. When a timeout occurs, it cancels the task and raises asyncio.TimeoutError. To avoid the task cancellation, wrap it in shield(). If the wait is cancelled, the future fut is also cancelled. This function is a coroutine, usage: result = y

class csv.Sniffer The Sniffer class is used to deduce the format of a CSV file. The Sniffer class provides two methods: sniff(sample, delimiters=None) Analyze the given sample and return a Dialect subclass reflecting the parameters found. If the optional delimiters parameter is given, it is interpreted as a string containing possible valid delimiter characters. has_header(sample) Analyze the sample text (presumed to be in CSV format) and return True if the first row appears to be a

Semaphore([value]) Create a shared threading.Semaphore object and return a proxy for it.

Namespace() Create a shared Namespace object and return a proxy for it.

run(cmd) Profile the cmd via exec().

Cmd.identchars The string of characters accepted for the command prefix.

turtle.bye() Shut the turtlegraphics window.

class msilib.RadioButtonGroup(dlg, name, property) Create a radio button control named name. property is the installer property that gets set when a radio button is selected. add(name, x, y, width, height, text, value=None) Add a radio button named name to the group, at the coordinates x, y, width, height, and with the label text. If value is None, it defaults to name.

class str(object='') class str(object=b'', encoding='utf-8', errors='strict') Return a string version of object. If object is not provided, returns the empty string. Otherwise, the behavior of str() depends on whether encoding or errors is given, as follows. If neither encoding nor errors is given, str(object) returns object.__str__(), which is the “informal” or nicely printable string representation of object. For string objects, this is the string itself. If object does not have a __str__()