More data structures

5. Punctuation used to differentiate between a single-element tuple and grouping parentheses.
6. An error that is raised when trying to insert an unhashable object into a set.
8. An ordered and mutable data structure used to store objects and can contain a variety of data types.
9. Objects that can be used as keys in dictionaries or inserted into sets.
10. of sets the elements that are present in the first set but not in the second set.
11. the combination of all elements from two sets.
15. Sets that have no common elements.
16. A set in which all elements are also present in another set.
18. A set that contains no elements and can be created using the set() function.
19. An organized collection of data for efficient storage and retrieval.

1. An ordered and immutable data structure used to store objects and can contain a variety of data types.
2. The punctuation used to delimit a set literal, similar to a dictionary but containing values rather than key-value pairs
3. the property of belonging to a set., can be tested using the 'in' operator
4. the elements that are common to both sets.
7. The punctuation used to enclose items in a tuple.
12. A data structure consisting of an unordered and mutable collection of unique objects.
13. Refers to an object that cannot be modified after it is created.
14. An unordered collection of key-value pairs that can contain different data types and are mutable.
17. A set that contains at least all the elements of another set.