rstrip error python2.4.3 not in 2.5.1?

[dirkheld]

Hi,

I wrote some python code that retrieves urls from a txt file. In this
code I use .rstrip() for removing the '\n' at the end of every url.
While this code works on my mac (leopard) with python 2.5.1, this same
code fails to work on an ubuntu server with python 2.4.3

I was wondering if there is a problem with .rstrip() in that python
version?

error :
Traceback (most recent call last):
  File "delgraph.py", line 62, in ?
    url_metadata = d.get_url(site.rstrip())