Python List Deletion Techniques: Using pop, remove, and clear (Day 81)

Day 81 of the Python learning notes introduces common list deletion operations.

The pop() method removes an element by its index; if no index is provided it removes the last element. Example:

list1 = ['西游记', '三国演义', '红楼梦', '水浒传']
list1.pop(1)
print(list1)  # ['西游记', '红楼梦', '水浒传']
list1.pop()
print(list1)   # ['西游记', '红楼梦']

The remove() method deletes the first occurrence of a specified value. Example:

list1.remove('红楼梦')
print(list1)  # ['西游记']

The clear() method empties the entire list:

list1.clear()
print(list1)  # []

These examples show the practical differences between index‑based removal, value‑based removal, and full list clearing.