a python package for linq
Project description
Linq for Python
像C#或JavaScript一样链式写python
1 代码说明
代码Fork https://pypi.org/project/py-linq/
2 新增功能
-
新增:
filter
,map
,find
等类似于JavaScriptfilter
,map
,find
-
使用函数式入口来初始化列表
linq4py.array()
3 举例
import linq4py as lp
origin_items = [
{'id': '1', 'parent_id': '', 'name': 'indicator 1', 'weight': 1, 'has_child': True},
{'id': '2', 'parent_id': '1', 'name': 'indicator 2', 'weight': 0.6, 'has_child': True},
{'id': '3', 'parent_id': '1', 'name': 'indicator 3', 'weight': 0.4, 'has_child': True},
{'id': '4', 'parent_id': '2', 'name': 'indicator 4', 'weight': 0.5, 'has_child': False},
{'id': '5', 'parent_id': '2', 'name': 'indicator 5', 'weight': 0.8, 'has_child': False},
{'id': '6', 'parent_id': '3', 'name': 'indicator 6', 'weight': 0.8, 'has_child': False},
{'id': '7', 'parent_id': '3', 'name': 'indicator 7', 'weight': 0.8, 'has_child': False},
]
# count demo
count = lp.array(origin_items).count(lambda item: item['has_child'])
print(count)
# filter,order_by_descending map demo
items = lp.array(origin_items).filter(lambda item: item["has_child"]).order_by_descending(
lambda item: item['weight']).map(lambda item: (item['id'], item['name']))
print(items)
# find demo
result = lp.array(origin_items).find(lambda item: item['weight'] > 0.3)
print(result)
4 修改日志
-
2023-04-08 重新打包
-
2023-04-08 Fork项目并新增相关功能
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