Make Python stop emitting a carriage return when writing newlines to sys.stdout

I'm on Windows and Python is (very effectively) preventing me from sending a stand-alone '\n' character to STDOUT. For example, the following will output foo\r\nvar:

sys.stdout.write("foo\nvar")

How can I turn this "feature" off? Writing to a file first is not an option, because the output is being piped.