Hướng dẫn create nested dictionary python - tạo python từ điển lồng nhau

Đây là phiên bản cập nhật của câu trả lời của tôi trong đó các cấu trúc dữ liệu của cây hiện khác với các phiên bản còn lại của nó. Thay vì cây hoàn toàn là một ____ 7 lồng-lồng -____ 7, "lá" trên mỗi nhánh hiện là trường hợp của một lớp con khác nhau của

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 có tên

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
0 rất hữu ích cho việc đếm số lần mỗi khóa của chúng xảy ra. Tôi đã làm điều này vì câu trả lời của bạn cho câu hỏi của tôi về điều gì sẽ xảy ra nếu phần cuối cùng của mỗi dòng là một thứ khác ngoài
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
1 [đó là "chúng ta phải đặt số lượng mới cho khóa đó"].

Từ điển lồng nhau thường được gọi là cấu trúc dữ liệu

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
2 và có thể được xác định đệ quy-gốc là một từ điển như các nhánh. Sau đây sử dụng lớp con
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 thay vì đơn giản
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 vì nó giúp việc xây dựng chúng trở nên dễ dàng hơn vì bạn không cần phải tạo ra một trường hợp tạo ra nhánh đầu tiên của cấp độ tiếp theo [ngoại trừ tôi vẫn làm khi thêm "lá" vì chúng là một lớp con khác,
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
0].
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
2 data-structures and can be defined recursively — the root is a dictionary as are the branches. The following uses a
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 subclass instead of a plain
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 because it makes constructing them easier since you don't need to special case the creation of the first branch of next level down [except I still do when adding the "leaves" because they are a different subclass,
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
0].
from collections import Counter
from functools import reduce
import re


# [Optional] trick to make Counter subclass print like a regular dict.
class Counter[Counter]:
    def __repr__[self]:
        return dict[self].__repr__[]


# Borrowed from answer @ //stackoverflow.com/a/19829714/355230
class Tree[dict]:
    def __missing__[self, key]:
        value = self[key] = type[self][]
        return value


# Utility functions based on answer @ //stackoverflow.com/a/14692747/355230
def nested_dict_get[nested_dict, keys]:
    return reduce[lambda d, k: d[k], keys, nested_dict]

def nested_dict_set[nested_dict, keys, value]:
    nested_dict_get[nested_dict, keys[:-1]][keys[-1]] = value

def nested_dict_update_count[nested_dict, keys]:
    counter = nested_dict_get[nested_dict, keys[:-1]]
    if counter:  # Update existing Counter.
        counter.update[[keys[-1]]]
    else:  # Create a new  Counter.
        nested_dict_set[nested_dict, keys[:-1], Counter[[keys[-1]]]]


d = Tree[]
pat = re.compile[r'[a-zA-z]+']
with open['abc.txt'] as file:
    for line in file:
        nested_dict_update_count[d, [w for w in pat.findall[line.rstrip[]]]]

print[d]  # Prints like a regular dict.
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
2
data-structures and can be defined recursively — the root is a dictionary as are the branches. The following uses a
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 subclass instead of a plain
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
57 because it makes constructing them easier since you don't need to special case the creation of the first branch of next level down [except I still do when adding the "leaves" because they are a different subclass,
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
0].
from collections import Counter
from functools import reduce
import re


# [Optional] trick to make Counter subclass print like a regular dict.
class Counter[Counter]:
    def __repr__[self]:
        return dict[self].__repr__[]


# Borrowed from answer @ //stackoverflow.com/a/19829714/355230
class Tree[dict]:
    def __missing__[self, key]:
        value = self[key] = type[self][]
        return value


# Utility functions based on answer @ //stackoverflow.com/a/14692747/355230
def nested_dict_get[nested_dict, keys]:
    return reduce[lambda d, k: d[k], keys, nested_dict]

def nested_dict_set[nested_dict, keys, value]:
    nested_dict_get[nested_dict, keys[:-1]][keys[-1]] = value

def nested_dict_update_count[nested_dict, keys]:
    counter = nested_dict_get[nested_dict, keys[:-1]]
    if counter:  # Update existing Counter.
        counter.update[[keys[-1]]]
    else:  # Create a new  Counter.
        nested_dict_set[nested_dict, keys[:-1], Counter[[keys[-1]]]]


d = Tree[]
pat = re.compile[r'[a-zA-z]+']
with open['abc.txt'] as file:
    for line in file:
        nested_dict_update_count[d, [w for w in pat.findall[line.rstrip[]]]]

print[d]  # Prints like a regular dict.

Để kiểm tra các khả năng đếm lá của mã sửa đổi, tôi đã sử dụng tệp thử nghiệm sau bao gồm cùng một dòng hai lần, một lần kết thúc lại với

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
6 và một kết thúc khác trong
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
7.

Mở rộng tệp kiểm tra

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
8:
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass

Output:

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
1

Điều kiện tiên quyết - Từ điển Python trong Python hoạt động tương tự như từ điển trong thế giới thực. Các khóa của từ điển phải là duy nhất và loại dữ liệu bất biến như chuỗi, số nguyên và bộ dữ liệu, nhưng các giá trị khóa có thể được lặp lại và thuộc bất kỳ loại nào. Từ điển: Từ điển làm tổ có nghĩa là đặt một từ điển vào từ điển khác. Nesting được sử dụng rất nhiều vì loại thông tin chúng ta có thể mô hình hóa trong các chương trình được mở rộng rất nhiều. & NBSP; & NBSP;Python dictionaryA Dictionary in Python works similar to the Dictionary in the real world. Keys of a Dictionary must be unique and of immutable data type such as Strings, Integers and tuples, but the key-values can be repeated and be of any type.Nested Dictionary: Nesting Dictionary means putting a dictionary inside another dictionary. Nesting is of great use as the kind of information we can model in programs is expanded greatly.  Python dictionary
A Dictionary in Python works similar to the Dictionary in the real world. Keys of a Dictionary must be unique and of immutable data type such as Strings, Integers and tuples, but the key-values can be repeated and be of any type.
Nested Dictionary: Nesting Dictionary means putting a dictionary inside another dictionary. Nesting is of great use as the kind of information we can model in programs is expanded greatly. 
 

Python3

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
9
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
10
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
11
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
12223
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
14
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
16
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
17
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
18
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
19
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
13
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
31
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
33
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
34

Python3

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
10
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
37
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
38
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
20__

Tạo một từ điển lồng nhau

Trong Python, một từ điển lồng nhau có thể được tạo bằng cách đặt các từ điển được phân tách bằng dấu phẩy được đặt trong niềng răng. & Nbsp; & nbsp; 
 

Python3

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
10
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
11
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
64
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
65
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
67
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
69
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
38
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576

Is

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
65
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
13
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
575
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
21
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
579
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
34
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
02
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
22
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576

Đầu ra: & nbsp; & nbsp;

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
65
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
13
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
30
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
20
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
21
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
38
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
38
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
21
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
2 2
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
39
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
02
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
26
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576

Output:  
 

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
3

Thêm các yếu tố vào một từ điển lồng nhau

Việc bổ sung các yếu tố vào một từ điển lồng nhau có thể được thực hiện theo nhiều cách. Một cách để thêm một từ điển trong từ điển lồng nhau là thêm các giá trị là một, lồng nhau_dict [dict] [key] = ‘giá trị. Một cách khác là thêm toàn bộ từ điển trong một lần, nested_dict [dict] = {‘key,’ giá trị}. & Nbsp; & nbsp; 
 

Python3

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
10
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
51
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
53
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
61
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
10
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
65
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
61
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
69
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
5722
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
61
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
69
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63______
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
83
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576

Các

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
83
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576

Output:     
 

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
2

Các yếu tố truy cập của một từ điển lồng nhau

Để truy cập giá trị của bất kỳ khóa nào trong từ điển lồng nhau, hãy sử dụng lập chỉ mục [] Cú pháp. & NBSP; & NBSP; 
 

Python3

Is

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
65
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
13
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
575
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
21
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
579
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
34
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
61
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
69
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
139
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
61
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
69
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
139

Đầu ra: & nbsp; & nbsp;    
 

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
27

Xóa từ điển khỏi từ điển lồng nhau

Việc xóa từ điển khỏi từ điển lồng nhau có thể được thực hiện bằng cách sử dụng từ khóa del hoặc bằng cách sử dụng hàm pop []. & Nbsp; & nbsp; 
 

Python3

Is

Đầu ra: & nbsp; & nbsp;  

Output:     
 

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
27

Từ điển trong Python có năng động không?

Xóa từ điển khỏi từ điển lồng nhau and will update as the dictionary updates. We can't use indexing to retrieve a particular item of the view objects.

Việc xóa từ điển khỏi từ điển lồng nhau có thể được thực hiện bằng cách sử dụng từ khóa del hoặc bằng cách sử dụng hàm pop []. & Nbsp; & nbsp; 

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
161
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
13
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
575
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
21
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
15
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
81
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
34
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
53
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
181
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
184
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
61
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
66
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
188
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
194
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
571
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
572
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
198
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
63
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
68
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
574
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
35
abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
576a nested dictionary is a dictionary inside a dictionary. It's a collection of dictionaries into one single dictionary. Here, the nested_dict is a nested dictionary with the dictionary dictA and dictB . They are two dictionary each having own key and value.

abc/pqr/lmn/xyz:pass
abc/pqr/lmn/bcd:pass
abc/pqr/lmn/xyz:fail
abc/pqr/lmn/xyz:pass
6Từ điển trong Python có năng động không?

Chúng năng động và sẽ cập nhật dưới dạng cập nhật từ điển.Chúng tôi không thể sử dụng lập chỉ mục để truy xuất một mục cụ thể của các đối tượng xem. and will update as the dictionary updates. We can't use indexing to retrieve a particular item of the view objects..

Từ điển Python có thể được lồng không?

Trong Python, một từ điển lồng nhau là một từ điển trong một từ điển.Đó là một tập hợp các từ điển thành một từ điển duy nhất.Ở đây, Nested_dict là một từ điển lồng nhau với Dicta dicta và dictb.Chúng là hai từ điển mỗi người có khóa và giá trị riêng.a nested dictionary is a dictionary inside a dictionary. It's a collection of dictionaries into one single dictionary. Here, the nested_dict is a nested dictionary with the dictionary dictA and dictB . They are two dictionary each having own key and value.

Làm thế nào để bạn thêm nhiều từ điển trong Python?

Làm thế nào để hợp nhất 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 ..

Chủ Đề