NamedTemporaryFile does not match documentation

[Jason Friedman]

Python 3.2.2 (default, Feb 14 2012, 08:06:31)
[GCC 4.1.2 20080704 (Red Hat 4.1.2-50)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> from tempfile import NamedTemporaryFile
>>> f = NamedTemporaryFile(delete=False)
>>> f
<tempfile._TemporaryFileWrapper object at 0x7f867e8bc050>
>>> f.name
'/tmp/tmpqxnd_4'
>>> f.write("Hello World!\n")
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: 'str' does not support the buffer interface

Or, maybe I am reading the documentation incorrectly.  My goal is to
be able to write to that temporary file along the lines of "f.write()"
or "with open(f) as writer ...".