popen and popen2

[cruciatuz]

What is the difference between popen and popen2?
I compared pydoc popen und pydoc popen2:

### pydoc ###

Python Library Documentation: built-in function popen in os

popen(...)
    popen(command [, mode='r' [, bufsize]]) -> pipe
    Open a pipe to/from a command returning a file object.


Python Library Documentation: function popen2 in os

popen2(cmd, mode='t', bufsize=-1)

### end pydoc ###

The only difference i see is that bufsize is different(?)
What does that mean and when do i have to use popen and when do i have
to use popen2 ?

-- 
Stefan Antoni
----------------------------
Mit Nov 28 18:00:21 EST 2001
                       _
ASCII ribbon campaign ( )
 - against HTML email  X            
                      / \
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 240 bytes
Desc: not available
URL: <http://mail.python.org/pipermail/python-list/attachments/20011128/d281b366/attachment.sig>