Python Data Structures Quick Reference

LIST - Ordered, mutable collection
- Create: my_list = [1, 2, 3]
- Append: my_list.append(4)
- Remove: my_list.remove(2)
- Length: len(my_list)

TUPLE - Ordered, immutable collection
- Create: my_tuple = (1, 2, 3)
- Access: my_tuple[0] returns 1
- Cannot be modified after creation

DICTIONARY - Key-value pairs
- Create: my_dict = {'name': 'Alice', 'age': 30}
- Access: my_dict['name'] returns 'Alice'
- Keys: my_dict.keys()
- Values: my_dict.values()

SET - Unordered, unique collection
- Create: my_set = {1, 2, 3}
- Add: my_set.add(4)
- Remove: my_set.remove(2)
- Unique items only

OPERATIONS ON COLLECTIONS
- Iteration: for item in collection
- Membership: item in collection
- Slicing: list[start:end]
- Sorting: sorted(list), list.sort()