Output Not Printed By Line

I'm not 100% it was always like this but at the moment stdout doesn't print line by line, and instead spits everything out in one bulk. This python script is a google example.

I think it has something to do with how [BufferedProcess](https://github.com/atom/atom/blob/master/src/buffered-process.coffee) is done, maybe use a modified version or switch to Spawn completely? Just pitching ideas.

```
import time
time.sleep(1)
print 'One'
time.sleep(1)
print 'Two'
time.sleep(10)
print 'Three'
```

EDIT: It seems to be something related to Python I guess, as my Coffeefiles are working correctly.