print to console without a line break

[Qian Xu]

Hello All,

Is it possible to print something to console without a line break?

I tried:
sys.stdout.write("Testing something ...") // nothing will be printed
time.sleep(1)
sys.stdout.write("done\n") // now, the whole string will be printed

What I want, is to see "Testing something ..." first.
And after 1 second, to see "done" (with a line break)

The only one solution I have found is to call "echo -n 'my_string'".
But it is not nice. Because I have to escape all special chars in the string
manually.

Any advice?
Best regards
-- Qian Xu

 

[Qian Xu]

Hello All,

Is it possible to print something to console without a line break?

I tried:
sys.stdout.write("Testing something ...") // nothing will be printed
time.sleep(1)
sys.stdout.write("done\n") // now, the whole string will be printed

What I want, is to see "Testing something ..." first.
And after 1 second, to see "done" (with a line break)

I have solved the problem by calling
sys.stdout.flush()

--Qian Xu

 

[Lie Ryan]

Hello All,

Is it possible to print something to console without a line break?

I tried:
sys.stdout.write("Testing something ...") // nothing will be printed
time.sleep(1)
sys.stdout.write("done\n") // now, the whole string will be printed

What I want, is to see "Testing something ..." first. And after 1
second, to see "done" (with a line break)

The only one solution I have found is to call "echo -n 'my_string'". But
it is not nice. Because I have to escape all special chars in the string
manually.

Any advice?
Best regards
-- Qian Xu

If you don't mind an extra space, you can use this:

print 'Testing something ...',
# note the trailing comma

 

[Albert Hopkins]

Probably because your stdout is line-buffered. Try:

sys.stdout.write("Testing something...")
sys.stout.flush() # flush the stdout buffer

 

[Qian Xu]

On Tue, 2008-12-23 at 13:18 +0000, Lie Ryan wrote:

Probably because your stdout is line-buffered. Try:

sys.stdout.write("Testing something...")
sys.stout.flush() # flush the stdout buffer

Thanks. This works for me ^^)

 

[Qian Xu]

Lie Ryan wrote:

If you don't mind an extra space, you can use this:

print 'Testing something ...',
# note the trailing comma

Thanks. However, the contents will be saved in buffer and will not be shown
until print "(last piece)"

sys.stdout.flush() can solve this problem