[Tutor] quicksort using list comprehension

[Logesh Pillay]

I'm trying to program quicksort using list comprehension.
The following gives me a type mismatch error for "+".

def qsort (t):
     if len (t) > 1:
         return qsort([x for x in t[1:] if x <= t[0]]) + [t[0]] + qsort([x  
for x in t[1:] if x > t[0]])

I know this sounds strange but I have and idea it (or something similar)  
worked when I last tried Python a yr or so ago. An earlier version of  
Python?

Logesh Pillay