Python - How do I convert “an OS-level handle to an open file” to a file object?

Question

tempfile.mkstemp() returns:

a tuple containing an OS-level handle to an open file (as would be returned by os.open()) and the absolute pathname of that fi

Answer 1

temp = tempfile.NamedTemporaryFile(delete=False)
temp.file.write('foo\n')
temp.close()