What can I use to call the OS to open a URL in whatever browser the user has as default? Not worried about cross-OS compatibility; if it works in linux thats enough for me!
Here is how to open the user's default browser with a given url:
import webbrowser
webbrowser.open(url[, new=0[, autoraise=True]])
Here is the documentation about this functionality. It's part of Python's stdlibs:
http://docs.python.org/library/webbrowser.html
I have tested this successfully on Linux, Ubuntu 10.10.