why msvcrt.printf show the first char only?

Wed Oct 12 07:50:34 EDT 2011

On 2011年10月12日 04:18:25 -0700, installman at 189.cn wrote:
> from ctypes import *
> msvcrt = cdll.msvcrt
> message_string = "Hello world!\n"
> print(msvcrt.printf("Testing: %s", message_string))
>> when running in eclipse, the result is:
> 1
> T
>> when running in IDLE, then result is:
> 1
>> why is that?

Odd. I get 22 when running from IDLE.
Also, when using the console, it actually prints the text. I suspect that
stdout gets block-buffered when using an IDE. I can't see any way to get a
reference to stdout, so you can't fflush() it.