Python - Group by with condition

import itertools

# 示例数据
data = [
    {'name': 'Alice', 'age': 25, 'gender': 'female'},
    {'name': 'Bob', 'age': 30, 'gender': 'male'},
    {'name': 'Charlie', 'age': 35, 'gender': 'male'},
    {'name': 'David', 'age': 40, 'gender': 'male'},
    {'name': 'Eve', 'age': 45, 'gender': 'female'},
]

# 根据gender进行分组
groups = itertools.groupby(data, key=lambda x: x['gender'])

# 遍历分组结果
for key, group in groups:
    print(f"Group: {key}")
    for item in group:
        print(item)
    print()

Group: female
{'name': 'Alice', 'age': 25, 'gender': 'female'}
{'name': 'Eve', 'age': 45, 'gender': 'female'}

Group: male
{'name': 'Bob', 'age': 30, 'gender': 'male'}
{'name': 'Charlie', 'age': 35, 'gender': 'male'}
{'name': 'David', 'age': 40, 'gender': 'male'}