funcy is a library that provides functional tools. Examples are:

1. merge - Merges collections of the same type

2. walk - Type-preserving map

3. select - Selects a part of a collection

4. take - Takes the first n items of a collection

5. first - Takes the first item of a collection

6. remove - Predicated-removes items of a collection

7. concat - Concatenates two collections

8. flatten - Flattens a collection with subcollections

9. distinct - Returns only distinct items

10. split - Predicated-splits a collection

11. split_at - Splits a collection at a given item

12. group_by - Groups items by group

13. pairwise - Pairs off adjacent items

14. partial - Partially-applies a function

15. curry - Curries a function

16. compose - Composes functions

17. complement - Complements a predicate

18. all_fn - "all" with predicate