En Sat, 17 Oct 2009 02:15:13 -0300, Grant Edwards
<inva...@invalid.invalid> escribió:
On 2009-10-17, Dave Angel <da...@ieee.org> wrote:
mattia wrote:
Is there a way to print to an unbuffered output (like stdout)? I've
seen
that something like sys.stdout.write("hello") works but it also prints
the number of characters!
What the other responses (so far) didn't address is your comment about
"prints the number of characters."
You're presumably testing this in the interpreter, which prints extra
stuff. In particular, it prints the result value of any expressions
entered at the interpreter prompt. So if you type
sys.stdout.write("hello")
then after the write() method is done, the return value of the method
(5) will get printed by the interpreter.
Except sys.stdout.write("hello") doesn't return 5. It returns
None.
I don't know what the OP is talking about when he says "prints
the number of characters":
$ python
Python 2.6.2 (r262:71600, Aug 25 2009, 22:35:31)
[GCC 4.3.2] on linux2
Type "help", "copyright", "credits" or "license" for more
information.
import sys
sys.stdout.write("hello\n")
hello
Presumably he's using Python 3:
Python 3.1.1 (r311:74483, Aug 17 2009, 17:02:12) [MSC v.1500 32 bit
(Intel)] on win32
Type "help", "copyright", "credits" or "license" for more information.
p3> import sys
p3> sys.stdout.write("hello")
hello5
See http://bugs.python.org/issue6345
--
Gabriel Genellina
--
http://mail.python.org/mailman/listinfo/python-list
