# References

- Underscore.js: A similar library for JavaScript
- Enumerable: A similar library for Ruby
- Clojure: A functional language whose standard library has several counterparts in `toolz`
- itertools: The Python standard library for iterator tools
- functools: The Python standard library for function tools
- Functional Programming HOWTO: The description of functional programming features from the official Python docs.

## Contemporary Projects

These projects also provide iterator and functional utilities within Python. Their functionality overlaps substantially with that of PyToolz.

- funcy
- fn.py
- more_itertools