Python|将字典转换为元组列表

给定一个字典，编写一个Python程序将给定的字典转换为元组列表。
例子：

Input: { 'Geeks': 10, 'for': 12, 'Geek': 31 }
Output : [ ('Geeks', 10), ('for', 12), ('Geek', 31) ]

Input: { 'dict': 11, 'to': 22, 'list_of_tup': 33}
Output : [ ('dict', 11), ('to', 22), ('list_of_tup', 33) ]

以下是将字典转换为元组列表的各种方法。
方法#1：使用列表推导

Python3

# Python code to convert dictionary into list of tuples
 
# Initialization of dictionary
dict = { 'Geeks': 10, 'for': 12, 'Geek': 31 }
 
# Converting into list of tuple
list = [(k, v) for k, v in dict.items()]
 
# Printing list of tuple
print(list)

输出：

[('Geek', 31), ('for', 12), ('Geeks', 10)]

方法 #2：使用 items()

Python3

# Python code to convert dictionary into list of tuples
 
# Initialization of dictionary
dict = { 'Geeks': 10, 'for': 12, 'Geek': 31 }
 
# Converting into list of tuple
list = list(dict.items())
 
# Printing list of tuple
print(list)

输出：

[('for', 12), ('Geeks', 10), ('Geek', 31)]

方法 #3：使用 zip

Python3

# Python code to convert dictionary into list of tuples
 
# Initialization of dictionary
dict = { 'Geeks': 10, 'for': 12, 'Geek': 31 }
 
# Using zip
list = zip(dict.keys(), dict.values())
 
# Converting from zip object to list object
list = list(list)
 
# Printing list
print(list)

输出：

[('Geek', 31), ('Geeks', 10), ('for', 12)]

方法#4：使用迭代

Python3

# Python code to convert dictionary into list of tuples
 
# Initialization of dictionary
dict = { 'Geeks': 10, 'for': 12, 'Geek': 31 }
 
# Initialization of empty list
list = []
 
# Iteration
for i in dict:
   k = (i, dict[i])
   list.append(k)
 
# Printing list
print(list)

输出：

[('Geeks', 10), ('for', 12), ('Geek', 31)]

方法#5：使用集合

Python3

# Python code to convert dictionary into list of tuples
 
# Initialization of dictionary
dict = { 'Geeks': 10, 'for': 12, 'Geek': 31 }
 
# Importing
import collections
 
# Converting
list_of_tuple = collections.namedtuple('List', 'name value')
 
lists = list(list_of_tuple(*item) for item in dict.items())
 
# Printing list
print(lists)

输出：

[List(name='for', value=12), List(name='Geek', value=31), List(name='Geeks', value=10)]