Paul Moore wrote:
Traceback (most recent call last): File "hello.py", line 13, in <module> main() File "hello.py", line 7, in main sys.stdout.flush() IOError: [Errno 9] Bad file descriptor(Question - is it *ever* possible for a Unix program to have invalid file descriptors 0,1 and 2? At startup - I'm assuming anyone who does os.close(1) knows what they are doing!)
Of course; simply use the >&- pseudo-redirection, which has been a standard sh feature (later inherited by ksh and bash, but not csh) for ~30 years. The error message is amusing, too:
$ python -c 'print "foo"' >&- close failed in file object destructor: Error in sys.excepthook: Original exception was: Adding an explicit flush results in a more understandable error message: Traceback (most recent call last): File "<string>", line 1, in <module> IOError: [Errno 9] Bad file descriptor _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
