Python program that inserts and deletes elements in a list
val=list(eval(input("Enter list:")))
print("The list is:",val)
while True:
print("Main Menu")
print("1.Insert")
print("2.Delete")
print("3.Exit")
ch=int(input("Enter your choice:"))
if ch==1:
item=int(input("Enter item:"))
pos=int(input("Insert at which position? :"))
index=pos-1
val.insert(index,item)
print("Success!List now is:",val)
elif ch==2:
print("Deletion Menu")
print("1.Delete using value")
print("2.Delete using index")
print("3.Delete a sublist")
dch=int(input("Enter choice:"))
if dch==1:
item=int(input("Enter item to be deleted:"))
val.remove(item)
print("List now is:",val)
elif dch==2:
index=int(input("Enter index of the item to be deleted:"))
val.pop(index)
print("List now is:",val)
elif dch==3:
l=int(input("Enter lower limit of list slice to be deleted:"))
h=int(input("Enter upper limit of list slice to be deleted:"))
del val[l:h]
print("List now is:",val)
else:
print("Valid choices are 1,2,3 only!!!")
elif ch==3:
break
else:
print("Valid choices are 1/2/3 only.")Output
Enter list:3,6,2,7,9,4
The list is: [3, 6, 2, 7, 9, 4]
Main Menu
1.Insert
2.Delete
3.Exit
Enter your choice:1
Enter item:7
Insert at which position? :5
Success!List now is: [3, 6, 2, 7, 7, 9, 4]
Main Menu
1.Insert
2.Delete
3.Exit
Enter your choice:2
Deletion Menu
1.Delete using value
2.Delete using index
3.Delete a sublist
Enter choice:1
Enter item to be deleted:6
List now is: [3, 2, 7, 7, 9, 4]
Main Menu
1.Insert
2.Delete
3.Exit
Enter your choice:2
Deletion Menu
1.Delete using value
2.Delete using index
3.Delete a sublist
Enter choice:2
Enter index of the item to be deleted:3
List now is: [3, 2, 7, 9, 4]
Main Menu
1.Insert
2.Delete
3.Exit
Enter your choice:2
Deletion Menu
1.Delete using value
2.Delete using index
3.Delete a sublist
Enter choice:3
Enter lower limit of list slice to be deleted:2
Enter upper limit of list slice to be deleted:4
List now is: [3, 2, 4]
Main Menu
1.Insert
2.Delete
3.Exit
Enter your choice:3
