Problem installing Yum

[Jason Warm]

First off let me thank everyone on this list.  You have been a great 
help!

As you have probably guessed by now, linux newbie here.  I have been an 
M$ guy for many a year now, recently made the switch to OS X, now got 
YDL on an old Powerbook for when I travel.

Now to my point....I am trying to load up Yup for RPM management, but 
when I try to I get the message"libxml2-python is needed by yum...".  I 
tried typing "apt-get libxml2-python" with no luck.  Could someone tell 
me the best way to get this installed.

Thanks,
Jason