Hướng dẫn how to group dictionary in python? - làm thế nào để nhóm từ điển trong python?

Danh sách nhóm dữ liệu từ điển bằng khóa cụ thể trong Python có thể được thực hiện bằng phương thức itertools.groupBy ().

Nội dung chính Show

Itertools.groupby()
Làm thế nào để bạn nhóm từ điển bằng cách sử dụng các khóa?
Làm thế nào để bạn tham gia một từ điển trong Python?
Bạn có thể kết hợp từ điển trong Python không?
Làm thế nào để bạn nối một từ điển?

Itertools.groupby()

Phương pháp này tính toán các phím cho từng phần tử có thể có thể có được. Nó trả về chìa khóa và có thể lặp lại của các mục được nhóm.

Cú pháp: itertools.groupby (itable, key_func) itertools.groupby(iterable, key_func)
Parameters:
Có thể lặp lại: Có thể có thể loại bất kỳ loại nào (danh sách, tuple, từ điển). Iterable can be of any kind (list, tuple, dictionary).
KEY_FUNC: Một hàm tính toán các khóa cho từng phần tử có thể sử dụng được. A function that calculates keys for each element present in iterable.
Loại trả lại: Nó trả về các khóa và nhóm liên tiếp từ ITBER. Nếu hàm khóa không được chỉ định hoặc không có, khóa mặc định chính cho hàm nhận dạng và trả về phần tử không thay đổi. It returns consecutive keys and groups from the iterable. If the key function is not specified or is None, key defaults to an identity function and returns the element unchanged.

Hãy cùng xem các ví dụ: Ví dụ 1: Giả sử chúng ta có danh sách từ điển của nhân viên và công ty.Example 1: Suppose we have list of dictionary of employee and company.

INFO = [
    {'employee': 'XYZ_1', 'company': 'ABC_1'},
    {'employee': 'XYZ_2', 'company': 'ABC_2'},
    {'employee': 'XYZ_3', 'company': 'ABC_3'},
    {'employee': 'XYZ_4', 'company': 'ABC_3'},
    {'employee': 'XYZ_5', 'company': 'ABC_2'},
    {'employee': 'XYZ_6', 'company': 'ABC_3'},
    {'employee': 'XYZ_7', 'company': 'ABC_1'},
    {'employee': 'XYZ_8', 'company': 'ABC_2'},
    {'employee': 'XYZ_9', 'company': 'ABC_1'}
]

Bây giờ chúng ta cần hiển thị tất cả các nhóm dữ liệu bằng tên khóa của công ty.

Code:

Python3

from itertools import groupby

INFO = [

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

Các

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3itertools 4

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3from8

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3import4

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3groupby4

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3from8

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3INFO 4

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

3=4

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

Các

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

0____104

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

INFO =

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

11=____113

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

Output:

ABC_1 [{'nhân viên': 'xyz_1', 'công ty': 'abc_1}, {' nhân viên ':' xyz_7 ',' công ty ':' abc_1}, {'nhân viên': 'xyz_9', 'công ty' : 'ABC_1}] ABC_2 [{' Nhân viên ':' XYZ_2 ',' Công ty ':' ABC_2}, {'Nhân viên': 'XYZ_5', 'Công ty': 'ABC_2}, {' Xyz_8 ',' công ty ':' abc_2}] abc_3 [{'nhân viên': 'xyz_3', 'công ty': 'abc_3 ′}, {' nhân viên ':' xyz_4 ',' công ty ':' abc_3 {'Nhân viên': 'XYZ_6', 'Công ty': 'ABC_3'}]]

Ví dụ 2: Giả sử chúng ta có danh sách từ điển của các lớp học sinh và điểm. Suppose we have list of dictionary of student grades and marks.

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

Bây giờ chúng ta cần hiển thị tất cả các nhóm dữ liệu bằng khóa ‘Lớp.

Code:

Python3

from itertools import groupby

INFO = [

Các

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

Các

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

65[9

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

0____104

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

INFO =

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

11=____113

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

ABC_1 [{'nhân viên': 'xyz_1', 'công ty': 'abc_1}, {' nhân viên ':' xyz_7 ',' công ty ':' abc_1}, {'nhân viên': 'xyz_9', 'công ty' : 'ABC_1}] ABC_2 [{' Nhân viên ':' XYZ_2 ',' Công ty ':' ABC_2}, {'Nhân viên': 'XYZ_5', 'Công ty': 'ABC_2}, {' Xyz_8 ',' công ty ':' abc_2}] abc_3 [{'nhân viên': 'xyz_3', 'công ty': 'abc_3 ′}, {' nhân viên ':' xyz_4 ',' công ty ':' abc_3 {'Nhân viên': 'XYZ_6', 'Công ty': 'ABC_3'}]]

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

students = [
    {'mark': '65','grade': 'C'},
    {'mark': '86','grade': 'A'},
    {'mark': '73','grade': 'B'},
    {'mark': '49','grade': 'D'},
    {'mark': '91','grade': 'A'},
    {'mark': '79','grade': 'B'}
]

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

Output:

A
{'mark': '86', 'grade': 'A'}
{'mark': '91', 'grade': 'A'}
B
{'mark': '73', 'grade': 'B'}
{'mark': '79', 'grade': 'B'}
C
{'mark': '65', 'grade': 'C'}
D
{'mark': '49', 'grade': 'D'}

Làm thế nào để bạn nhóm từ điển bằng cách sử dụng các khóa?

Danh sách nhóm dữ liệu từ điển bằng khóa cụ thể trong Python có thể được thực hiện bằng phương thức itertools.groupBy ().using itertools. groupby() method.

Làm thế nào để bạn tham gia một từ điển trong Python?

Dưới đây là tám phương pháp tiêu chuẩn mà bạn có thể hợp nhất hai từ điển trong Python ...

1) Sử dụng phương thức Update () ..

2) Sử dụng toán tử hợp nhất (|) ..

3) Sử dụng toán tử ** ..

4) Giải nén từ điển thứ hai ..

5) Sử dụng Phương thức Collection.ChainMap () ..

6) Sử dụng itertools.....

7) Sử dụng khả năng hiểu từ điển ..

8) Thêm giá trị của các khóa chung ..

Bạn có thể kết hợp từ điển trong Python không?

Các từ điển Python Concatenate có cùng các khóa, bộ đếm giữ dữ liệu trong một bộ sưu tập không có thứ tự giống như một đối tượng có thể băm.Để kết hợp từ điển, tôi đã sử dụng từ điển = từ điển1 + từ điển2.Để có được đầu ra, tôi đã sử dụng bản in (Từ điển, từ điển, STR (Từ điển)).To concatenate the dictionary, I have used dictionary = dictionary1 + dictionary2. To get the output, I have used print(“dictionary”, str(dictionary)).

Làm thế nào để bạn nối một từ điển?

Bấp (các) phần tử vào từ điển để nối phần tử vào từ điển hiện có, bạn phải sử dụng tên từ điển theo sau là dấu ngoặc vuông với tên khóa và gán giá trị cho nó.use the dictionary name followed by square brackets with the key name and assign a value to it.