Web
link(url[, target=None]): open a web page in target window, if target is missing, web page will be opened in current window; if target equals_new, web page will be opened in a new window/tab.
Example
from processing import *
def keyPressed():
    # key "o" is pressed
    # open a web page load oyoclass.com
    if keyboard.keyCode == 79:
        link("https://oyoclass.com", "_new")
run()