Python comes with some nice built-in methods for operating on iterables, but it can get messy really quickly if you want to transform an iterable multiple times. Write more expressive code by chaining built-in transformations with this module.
Get it via pip install pyiterable!
from pyiterable import Iterable
...
values = Iterable(["1", "2", "5", "9"])
sum = (values
.map(lambda x: int(x))
.filter(lambda x: x > 4)
.reduce(lambda a, b: a + b)
)