[Python] The get() method on Python dicts and its "default" arg

# The get() method on dicts
# and its "default" argument
 
name_for_userid = {
    382: "Alice",
    590: "Bob",
    951: "Dilbert",
}
 
def greeting(userid):
    return "Hi %s!" % name_for_userid.get(userid, "there")
 
>>> greeting(382)
"Hi Alice!"
 
>>> greeting(333333)
"Hi there!"