local variable 'option' referenced before assignment

[RedSkeleton007]

My VWL list is out of scope:

#!/usr/bin/env python3
#BuildYourOwnCDmixName.py

def heavyMetalCDMixName():
    yourName = input("What is your name: ")
    VWL = ["Angry", "Violent", "Crazy", "Dangerous", "Berserk"] #VWL = ViolentWordList
    print("The words in the list include: "
          + "[0]:" + VWL[0] + ", [1]:" + VWL[1] + ", [2]:" + VWL[2] + ", [3]:"
          + VWL[3] + ", [4]:" + VWL[4])
    print("Choose index numbers from [0] to [4] to complete the name for your "
          + str(yourName) + "'s _______ Heavy Metal mix. Enter 100 when you're done.")

    mixName = (str(yourName) + "'s ")

    option = True
    while True:
        option = int(input("Enter index number to append to your CD mix's name: "))
        if option == 0:
            mixNameList = list(mixName)#convert mixName to a list,
            mixNameList.insert(0, VML[0])#so we can add the word at VML[0] to the cd mix name
            mixName = ''.join(mixNameList)#convert mixName back to a string
        elif option == 1:
            mixNameList = list(mixName)
            mixNameList.insert(0, VML[1])
            mixName = ''.join(mixNameList)
        elif option == 2:
            mixNameList = list(mixName)
            mixNameList.insert(0, VML[2])
            mixName = ''.join(mixNameList)
        elif option == 3:
            mixNameList = list(mixName)
            mixNameList.insert(0, VML[3])
            mixName = ''.join(mixNameList)
        elif option == 4:
            mixNameList = list(mixName)
            mixNameList.insert(0, VML[4])
            mixName = ''.join(mixNameList)
        elif option == 100:
            print("You named your CD mix: " + mixName)
            break #so is "break" equivalent to "option = false"?
        else:
            print("You must enter a valid index number between 0 and 4 from VML.")
            continue

def main():
    heavyMetalCDMixName()

main()

Error:
What is your name: Sam
The words in the list include: [0]:Angry, [1]:Violent, [2]:Crazy, [3]:Dangerous, [4]:Berserk
Choose index numbers from [0] to [4] to complete the name for your Sam's _______ Heavy Metal mix. Enter 100 when you're done.
Enter index number to append to your CD mix's name: 0
Traceback (most recent call last):
  File "I:\Python\Python36-32\SamsPrograms\BuildYourOwnCDmixName.py", line 48, in <module>
    main()
  File "I:\Python\Python36-32\SamsPrograms\BuildYourOwnCDmixName.py", line 46, in main
    heavyMetalCDMixName()
  File "I:\Python\Python36-32\SamsPrograms\BuildYourOwnCDmixName.py", line 20, in heavyMetalCDMixName
    mixNameList.insert(0, VML[0])#so we can add the word at VML[0] to the cd mix name
NameError: name 'VML' is not defined

Do I really have to put it inside the while loop? Is there another way to deal with that scope problem?