PYLISTIN

Functions to work with list in python

Install

• pip install pylistin

Update to last version

• pip install pylistin --upgrade

API

list_reduce <E, T>(list: list[E], callback: (ac: T, item: E, index?: int, list?: list[E]) -> T, ac_init: T = 0) -> T

For each all list elements with a lamda function or def as callback for return a one result. This function is used to loop through a list and accumulate a value.

from pylistin import list_reduce

print(list_reduce([2,5,9], lambda ac, item, i, list: ac + item, 0)) # 16

list_map <E, T>(list: list[E], callback: (item?: E, index?: int, list?: list[E]) -> T) -> list[T]

For each all list elements with a lamda function or def as callback for return an other list with same lenght.

from pylistin import list_map

print(list_map([2,5,9], lambda item, i: i, 0)) # [0, 1, 2]

list_filter <E>(list: list[E], callback: (item?: E, index?: int, list?: list[E]) -> boolean) -> list[E]

For each all list elements with a lamda function or def as callback for return only elements that callback return True.

from pylistin import list_filter

print(list_filter([
    {"id": 1, "enabled": 1}, 
    {"id": 2, "enabled": 1}, 
    {"id": 3, "enabled": 0}, 
    {"id": 4, "enabled": 1}
], lambda item: item["enabled"] == 1))
# [{'id': 1, 'enabled': 1}, {'id': 2, 'enabled': 1}, {'id': 4, 'enabled': 1}]

list_group <E, T>(list: list[E], callback: (item?: E, rows?: list, last_row?: int, this_column?: int , index?: int, list?: list[E]) -> T, columns: int ) -> list[T]

For each all list elements with a lamda function or def as callback for agruping a list in rows and columns.

from pylistin import list_group

print(list_group([4,5,9,2,5,9,1,2,3], lambda item: item, 3))
# [[4, 5, 9], [2, 5, 9], [1, 2, 3]]

Updates

[0.0.5] changes

• implement a for item in list without range in list_reduce and list_group.
• reducing the exceptions and determinate the arguments of callbacks.

Lisence

MIT

Author

Camilo Andres Barbosa - calimpio

[email protected]