Python–具有唯一值列表的字典
给定带有列表值的字典列表，提取唯一的字典。
输入 : [{'Gfg': [2，3]，' is' : [7，8]，' best' : [10]}，{'Gfg': [2，3]，' is' : [7，8]，' best' : [10]，' best' : [10]}] 输出 : [{'Gfg': [2，3]，' is': [7，8]，' best': [10]}] 解释:两者为相似词典，故 1 为
输入 : [{'Gfg': [2，3]，' is' : [7，8]，' best' : [10]}，{'Gfg': [2，3]，' is' : [7，8]，' best' : [10，11]}] 输出 : [{'Gfg': [2，3]，' is': [7，8]，' best': [10]}，{'Gfg': [2，3]，' is ':[7]
方法#1:使用循环
这是执行这项任务的方法之一。在这种情况下，我们对每个字典进行迭代和记忆，并防止它添加到结果中。
Python 3
# Python3 code to demonstrate working of
# Unique Value Lists Dictionaries
# Using loop
# initializing lists
test_list = [{'Gfg': [2, 3], 'is' : [7, 8], 'best' : [10]},
{'Gfg': [2, 3], 'is' : [7], 'best' : [10]},
{'Gfg': [2, 3], 'is' : [7, 8], 'best' : [10]}]
# printing original list
print("The original list : " + str(test_list))
# Using loop to iterate through elements
# result array to also keep track of already occurred elements
res = []
for sub in test_list:
if sub not in res:
res.append(sub)
# printing result
print("List after duplicates removal : " + str(res))
Output
The original list : [{'Gfg': [2, 3], 'is': [7, 8], 'best': [10]}, {'Gfg': [2, 3], 'is': [7], 'best': [10]}, {'Gfg': [2, 3], 'is': [7, 8], 'best': [10]}]
List after duplicates removal : [{'Gfg': [2, 3], 'is': [7, 8], 'best': [10]}, {'Gfg': [2, 3], 'is': [7], 'best': [10]}]
方法 2:使用列表理解
这是执行这项任务的另一种方式。在这种情况下，采用了与上面类似的方法，只是封装结果的不同导致了对一行的列表理解。
Python 3
# Python3 code to demonstrate working of
# Unique Value Lists Dictionaries
# Using list comprehension
# initializing lists
test_list = [{'Gfg': [2, 3], 'is' : [7, 8], 'best' : [10]},
{'Gfg': [2, 3], 'is' : [7], 'best' : [10]},
{'Gfg': [2, 3], 'is' : [7, 8], 'best' : [10]}]
# printing original list
print("The original list : " + str(test_list))
# list comprehension to encapsulate logic in one liner
res = []
[res.append(val) for val in test_list if val not in res]
# printing result
print("List after duplicates removal : " + str(res))
Output
The original list : [{'Gfg': [2, 3], 'is': [7, 8], 'best': [10]}, {'Gfg': [2, 3], 'is': [7], 'best': [10]}, {'Gfg': [2, 3], 'is': [7, 8], 'best': [10]}]
List after duplicates removal : [{'Gfg': [2, 3], 'is': [7, 8], 'best': [10]}, {'Gfg': [2, 3], 'is': [7], 'best': [10]}]
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