sys.stderr.write returns string length in Python 3

[Alan G Isaac]

Is this new behavior intentional? ::

	>>> sys.stderr.write("thisisatest\n")
	thisisatest
	12

Here is the reason for it:

	>>> help(sys.stderr.write)
	Help on method write in module io:
	write(self, s: str) method of io.TextIOWrapper instance

Thank you,
Alan Isaac