Python Website & File Launcher! version 0.0.6 (Cmd. Update)

#Python Launcher version 0.0.6
#Coded by GameNationRDF
#It will be updated frequently with bug fixes and new feautures!
import webbrowser
import sys
import os
import string
print ("Here are the things you can do: ")
print ("")
print ("    *Type the website and hit enter to launch that website!")
print ("")
print ("    *Type 'file', and write the location of a file/program to launch it!")
print ("")
print ("    *Type 'exit' to close the program!")
print ("")
while True:
    userIn=str(input("Enter address/command here: "))
    print ("")
    if userIn == ("exit"):
        sys.exit()
    elif userIn == ("file"):
        filename=str(input("    *Enter file place: "))
        os.system("start "+filename)
    elif userIn.startswith("www") is True:
        handle=webbrowser.get()
        handle.open(userIn)
    else:
        print ("Sorry, unknown command!")


#Changelog:
        # -Website entry detection added.
        # -Unknown command handling added.