python application question

[a]

I am trying to write an application that takes two files from over the
internet and plots one against the other

i am getting the data ok.

if i want to plot it i have to use something like matplotlib?  but
this doesn't come with the standard installation.  so if i want
someone else to use this application, do they have to install
matplotlib themselves or is there a better way?

ps someone helped me with enumerate(), which works on the linux but
not on the windows?

thanks