Speed issues

[Gerrit Holl]

Hello,

is an assigment slower than appending to a list?
If I've got this function:

def f(s):
 o=[]
 for c in s:
  o.append(chr(ord(c)/2))
 return string.join(o, '')

or:

def f(s):
 o=''
 for c in s:
  o = o + chr(ord(c)/2) 
 return o

What is faster? What do you prefer?

regards,
Gerrit.

-- 
"However, complexity is not always the enemy."

  -- Larry Wall (Open Sources, 1999 O'Reilly and Associates)
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