Remove duplicates from a list in Python Trey Hunner 3 min. read • Python 3.9—3.13 • March 8, 2023 Share Tags Data Structures Need to de-duplicate a list of items?>>> all_colors = ["blue", "purple", "green", "red", "green", "pink", "blue"] ...
# to remove duplicated # from list res = [i for n, i in enumerate(test_list) if i not in test_list[:n]] # printing list after removal print ("The list after removing duplicates : " + str(res)) → 输出结果: The original list ...
# 方法一:使用循环 def remove_duplicates_using_loop(lst): res = [] for item in lst: if item not in res: res.append(item) return res # 方法二:使用列表推导式 def remove_duplicates_using_list_comprehension(lst): return [item for n, item in enumerate(lst) if item not in lst[:n]] ...
Learn how to remove duplicates from a List in Python. ExampleGet your own Python Server Remove any duplicates from a List: mylist = ["a","b","a","c","c"] mylist = list(dict.fromkeys(mylist)) print(mylist) Try it Yourself » ...
Write a Python program to remove duplicates from a list. Visual Presentation: Sample Solution: Python Code: # Define a list 'a' with some duplicate and unique elementsa=[10,20,30,20,10,50,60,40,80,50,40]# Create an empty set to store duplicate items and an empty list for unique it...
from functools import reduce def remove_duplicates(lst): return reduce(lambda x, y: x + [y] if y not in x else x, lst, []) # 示例 lst = [{'a': 1, 'b': 2}, {'b': 2, 'a': 1}, {'c': 3}] print(remove_duplicates(lst)) 方法三:使用 pandas 库 如果列表中的字典数量...
Other Options to Remove Duplicates From a List The options presented in the first part of this tutorial cover the two scenarios when duplicates need to be removed from a list: Use a set when the order of items is not needed. Usedict.fromkeys()to maintain the order of the items. ...
list1=[1,2,3,4,5]list2=[4,5,6,7,8]result=remove_duplicates_using_dict(list1,list2)print(result) 1. 2. 3. 4. 5. 6. 7. 8. 9. 结论 在本文中,我们介绍了如何使用Python去除两个列表中的重复元素。我们提供了三种方法:使用集合去重、使用循环去重和使用字典去重。每种方法都有其适用场景,...
[unique_list.append(x) for x in original_list if x not in unique_list]这行代码会遍历original_list,并将不重复的元素添加到unique_list中。 方法3: 使用dict.fromkeys() dict.fromkeys()方法会创建一个字典,字典的键是唯一的,因此可以去除重复元素。然后我们将字典的键转换回列表。
result = list(set(lst)) return result 调用remove_duplicates函数并传入原始列表作为参数,即可得到去除重复元素后的新列表。 Q: 如果列表中的元素是可哈希的(如字符串、整数等),是否可以使用for循环以外的方法去除重复元素? A: 是的,对于可哈希的元素(如字符串、整数等),可以使用Python的内置函数list()来去除列...