Control Center & Launcher Beta 1.6 (Python)

#Python Control Center version "Beta 1.6"
#Coded by Umut Bilgic (GameNationRDF)
#It will be updated frequently with bug fixes and new feautures!

#Download link: ---

import webbrowser
import sys
import os
import time
import urllib.request
import math

currentVersion = ("Beta 1.6")
developer = ("Umut Bilgic")
year = ("2013")

def spanLister(LIST):
    for i in (LIST):
        print (i)
        blank()

def viewChangeLog():
    cl0=("In this version ("+currentVersion+") :")
    cl1=("    * Added changelog viewer. (change)")
    cl2=("    * Added logarith menu. (math/log)")
    cl3=("    * Help menu fixed.")
    cl4=("    * ASCII Box and unknown command got better.")
    cl5=("    * Added screen cleaner. (clear)")
    cl6=("    * Added multiple help pages.")
    cl7=("    * Added developer page command (dev).")
    cl8=("    * Added os system commands. (os (command))")
    changeLogList=[cl0,cl1, cl2, cl3, cl4, cl5, cl6, cl7, cl8]
    spanLister(changeLogList)

def halfBlankScreenShort():
    for i in range(10):
        print("")

def halfBlankScreenLong():
    for i in range(24):
        print("")

def blank():
    print ("")

def helpF1():
    st1_1= ("Here are the things you can do (Viewing page 1): ")
    st1_2= ("    * Type the website and hit enter to launch that website!")
    st1_3= ("    * Type 'source' and then the URL to view the sourcecode of that website!")
    st1_4= ("    * Type 'file', and write the location of a file/program to launch it!")
    st1_5= ("    * Type 'c' to qucikly launch a file browser under 'file' menu!")
    st1_6= ("    * Type 'p' to quickly launch a python shell under 'file' menu!)")
    st1_7= ("    * Type 'math' to do basic math operations!")
    st1_8= ("    * Type 'time' to set up a timer!")
    st1_9= ("    * Type 'change' to view the changelog!")
    st1_10=("    * Type 'ping' to open up the ping menu and ping websites!")
    st1_11=("    * Type 'info' to get info about the program.")
    st1_12=("    * Type 'os.' and command after dot to perform default OS commands!")
    helpStringList1=[st1_1,st1_2,st1_3,st1_4,st1_5,st1_6,st1_7,st1_8,st1_9,st1_10,st1_11,st1_12]
    spanLister(helpStringList1)

def helpF2():
    st2_1= ("Here are the things you can do (Viewing page 2): ")
    st2_2= ("    * Type 'dev' to launch developer webpage.")
    st2_3= ("    * Type 'clear' to clear the program screen!")
    st2_4=("Type 'exit' to close program.")
    helpStringList2=[st2_1,st2_2,st2_3,st2_4]
    spanLister(helpStringList2)

halfBlankScreenShort()
print ("                             /--------------------\ ")
print ("                             |  LOADING LAUNCHER  | ")
print ("                             \--------------------/ ")
time.sleep(0.5)
halfBlankScreenLong()

print (" * Type 'help-1' or 'help-2' to see what you can do! * ")
blank()

# --- MAIN LOOP --- #

while True:
    userIn=str(input("Enter address/command here: "))
    blank()

    if userIn == ("help-1"):
        helpF1()

    elif userIn == ("help-2"):
        helpF2()

    elif userIn == ("exit"):
        print ("Program will close in a moment..")
        time.sleep(0.7)
        sys.exit()

    elif userIn.startswith("os.")is True:
        cmdList=userIn.split(".")
        os.system(cmdList[1])
        blank()

    elif userIn == ("file"):
        filename=str(input("    * Enter file place: "))
        blank()
        if filename == ("c"):
            c=("C:\ ")
            os.system("start " + c)
        if filename == ("p"):
            os.system("start "+"C:\python33\python")
        else:
            os.system("start "+filename)

    elif userIn == ("dev"):
        webbrowser.open("www.pastebin.com/u/GameNationRDF/")

    elif userIn.startswith("www") is True:
        webbrowser.open(userIn)

    elif userIn == ("source"):
        userURL=str(input("    * Enter the URL Address: "))
        print (urllib.request.urlopen(userURL).read())
        blank()

    elif userIn == ("math"):
        op = str(input("    * Enter operation (+, -, *, /, exp, sqrt, log): "))
        blank()
        if op==("+") or op==("-") or op==("*") or op==("/") or op==("exp"):
            input_1 = int(input("       * Enter first number:  "))
            blank()
            input_2 = int(input("       * Enter second number: "))
            blank()
        if op == ("+"):
            print ("       > "+str(input_1 + input_2))
            blank()
        elif op == ("-"):
            print ("       > "+str(input_1-input_2))
            blank()
        elif op == ("*"):
            print ("       > "+str(input_1*input_2))
            blank()
        elif op == ("/"):
            print ("       > "+str(input_1/input_2))
            blank()
        elif op == ("exp"):
            print ("       > "+str(input_1**input_2))
            blank()
        elif op == ("sqrt"):
            oneInput=int(input("        * Enter number: "))
            blank()
            print ("       > "+str(math.sqrt(oneInput)))
            blank()
        elif op == ("log"):
            input_1 = int(input("       * Enter number:  "))
            blank()
            input_2 = int(input("       * Enter base: "))
            blank()
            print ("       > "+str(int((math.log(input_1, input_2)))))
            blank()

    elif userIn == ("ping"):
        userWebsite=str(input("    * Enter the website: "))
        os.system("ping "+(userWebsite))
        blank()

    elif userIn == ("info"):
        print (" - Current Version: "+currentVersion)
        print (" - Developer: "+developer)
        print (" - "+year)
        blank()

    elif userIn == ("time"):
        userTimeMode = str(input("  * Minutes or Seconds? (m/s): "))
        blank()
        if userTimeMode == ("m"):
            userLimitMin = int(input("  * Set your timer (minutes): "))
            blank()
            userLimit = (userLimitMin * 60)
        else:
            userLimit = int(input("    * Set your timer (seconds): "))
            blank()
        userMode  = str(input("    * Display mode? (y/n): "))
        blank()
        for i in range(1, userLimit):
            if userMode == ("y") or userMode == ("Y"):
                print (i)
            time.sleep(1.0)
        blank()
        print ("/---------------------\ ")
        print ("| Countdown finished! | ")
        print ("\---------------------/ ")
        blank()

    elif userIn==("change"):
        viewChangeLog()

    elif ((userIn.endswith(".com") is True) or (userIn.endswith(".org") is True) or ((userIn.endswith(".net") is True)))  and userIn.startswith("www") is False:
        userIn = ("www."+userIn)
        webbrowser.open(userIn)
        blank()

    elif userIn==("clear"):
        halfBlankScreenShort()
        os.system("cls")

    else:
        print (" - Sorry, unknown command! -")
        blank()