PYTHON 3 BEGINNER . I have the design for this function, but I need help writing

Question

PYTHON 3 BEGINNER . I have the design for this function, but I need help writing the rest of the code. Here's what I have:

#------------------------------------------------------------pick_from
# Purpose: present a list of choices to the user, validate answer and return it
# Preconditions: list of choices
# Postconditions: returns integer which is position of choice in the list

# if list is empty, just say nothing here and return -1
# otherwise
#    display list with numbers from 1 to length of list
#    ask user for choice
#    using while loop, check for valid number
#       inside, tell user that it is bad, ask again
#    return integer (subtract one so it is the correct subscript in the list)

Explanation / Answer

Please check below the sample code for your given requirement :

list1=["A","B","C","D"]

list2=["E","F","G","H"]

list3=["I","J","K","L"]

print(list1)

print(list2)

print(list3)

choise = input("Please chose the list ,enter 1 for 1st list , 2 for 2nd and 3 for 3rd list :" )

while(true)

if(choise >=1 and choise <=3)

if(choise==1)

print(list1)

break

elif(choise==2)

print(list2)

break

else(choise==3)

print(list3)

break

else

print("It is bad input, Please try again")

choise=input("try again" :)

Add as many list as you want to add and change the code accordingly.

Thanks you :)

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