os.setpgrp() Call the system call setpgrp() or setpgrp(0, 0) depending on which version is implemented (if any). See the Unix manual for the semantics. Availability: Unix.

window.syncok(flag) If called with flag set to True, then syncup() is called automatically whenever there is a change in the window.

IncrementalEncoder.setstate(state) Set the state of the encoder to state. state must be an encoder state returned by getstate().

prepare(record) Prepares a record for queuing. The object returned by this method is enqueued. The base implementation formats the record to merge the message and arguments, and removes unpickleable items from the record in-place. You might want to override this method if you want to convert the record to a dict or JSON string, or send a modified copy of the record while leaving the original intact.

exception asyncio.QueueEmpty Exception raised when the get_nowait() method is called on a Queue object which is empty.

intersection_update(other, ...) set &= other & ... Update the set, keeping only elements found in it and all others.

read(size=-1) Read up to size bytes from the object and return them. As a convenience, if size is unspecified or -1, readall() is called. Otherwise, only one system call is ever made. Fewer than size bytes may be returned if the operating system call returns fewer than size bytes. If 0 bytes are returned, and size was not 0, this indicates end of file. If the object is in non-blocking mode and no bytes are available, None is returned.

tzinfo.fromutc(dt) This is called from the default datetime.astimezone() implementation. When called from that, dt.tzinfo is self, and dt‘s date and time data are to be viewed as expressing a UTC time. The purpose of fromutc() is to adjust the date and time data, returning an equivalent datetime in self‘s local time. Most tzinfo subclasses should be able to inherit the default fromutc() implementation without problems. It’s strong enough to handle fixed-offset time zones, and time zones acco

logb(context=None) For a nonzero number, return the adjusted exponent of its operand as a Decimal instance. If the operand is a zero then Decimal('-Infinity') is returned and the DivisionByZero flag is raised. If the operand is an infinity then Decimal('Infinity') is returned.

class tkinter.tix.Select The Select widget is a container of button subwidgets. It can be used to provide radio-box or check-box style of selection options for the user.