Functional Programming Modules
The modules described in this chapter provide functions and classes that support a functional programming style, and general operations on callables.
The following modules are documented in this chapter:
- 
itertools— Functions creating iterators for efficient looping
- 
functools— Higher-order functions and operations on callable objects
- 
operator— Standard operators as functions
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Licensed under the PSF License.
    https://docs.python.org/3.10/library/functional.html