Hello World

[CM]

On Sunday, December 21, 2014 2:44:50 AM UTC-5, CM wrote:
> On Sunday, December 21, 2014 1:45:02 AM UTC-5, Chris Angelico wrote:
> > On Sun, Dec 21, 2014 at 5:31 PM, Terry Reedy wrote:
> > > Just to be clear, writing to sys.stdout works fine in Idle.
> > >>>> import sys; sys.stdout.write('hello ')
> > > hello  #2.7
> > >
> > > In 3.4, the number of chars? bytes? is returned and written also.
> > >
> > > Whether you mean something different by 'stdout' or not, I am not sure.  The
> > > error is from writing to a non-existent file descriptor.
> > 
> > That's because sys.stdout is replaced. But stdout itself, file
> > descriptor 1, is not available:
> > 
> > >>> os.fdopen(1,"w").write("Hello, world\n")
> > Traceback (most recent call last):
> >   File "<pyshell#4>", line 1, in <module>
> >     os.fdopen(1,"w").write("Hello, world\n")
> > OSError: [Errno 9] Bad file descriptor
> > 
> > This works fine in command-line Python, just not in IDLE. It's not
> > Windows vs Unix, it's Idle vs terminal.
> > 
> > ChrisA
> 
> Yes, just tested it on the same machine in the terminal and it prints:
> 
> Hello, world!
> 13

Actually, there is no comma after Hello.