Python | Uncommon elements in Lists of List
This particular article aims at achieving the task of finding uncommon two list, in which each element is in itself a list. This is also a useful utility as this kind of task can come in life of programmer if he is in the world of development. Lets discuss some ways to achieve this task.
Method 1 : Naive Method
This is the simplest method to achieve this task and uses the brute force approach of executing a loop and to check if one list contains similar list as of the other list, not including that.
Python3
|
# Python 3 code to demonstrate
# Uncommon elements in List
# using naive method
# initializing lists
test_list1 = [ [1, 2], [3, 4], [5, 6] ]
test_list2 = [ [3, 4], [5, 7], [1, 2] ]
# printing both lists
print ["The original list 1 : " + str[test_list1]]
print ["The original list 2 : " + str[test_list2]]
# using naive method
# Uncommon elements in List
res_list = []
for i in test_list1:
if i not in test_list2:
res_list.append[i]
for i in test_list2:
if i not in test_list1:
res_list.append[i]
# printing the uncommon
print ["The uncommon of two lists is : " + str[res_list]]
|
Output :
The original list 1 : [[1, 2], [3, 4], [5, 6]]
The original list 2 : [[3, 4], [5, 7], [1, 2]]
The uncommon of two lists is : [[5, 6], [5, 7]]
Method 2 : Using set[] + map[] and ^
The most efficient and recommended method to perform this task is using the combination of set[] and map[] to achieve it. Firstly converting inner lists to tuples using map, and outer lists to set, use of ^ operator can perform the set symmetric difference and hence perform this task. Further if it is required to get in lists of list fashion, we can convert outer and inner containers back to list using map[].
Python3
|
# Python 3 code to demonstrate
# Uncommon elements in Lists of List
# using map[] + set[] + ^
# initializing lists
test_list1 = [ [1, 2], [3, 4], [5, 6] ]
test_list2 = [ [3, 4], [5, 7], [1, 2] ]
# printing both lists
print ["The original list 1 : " + str[test_list1]]
print ["The original list 2 : " + str[test_list2]]
# using map[] + set[] + ^
# Uncommon elements in Lists of List
res_set = set[map[tuple, test_list1]] ^ set[map[tuple, test_list2]]
res_list = list[map[list, res_set]]
# printing the uncommon
print ["The uncommon of two lists is : " + str[res_list]]
|
Output :
The original list 1 : [[1, 2], [3, 4], [5, 6]]
The original list 2 : [[3, 4], [5, 7], [1, 2]]
The uncommon of two lists is : [[5, 6], [5, 7]]
Article Tags :
Python
Python Programs
Python list-programs
Read Full Article
“python find uncommon elements in two lists” Code Answer’s
how to subtract 2 lists in python
python by Velvet Thunder
5
Source: stackoverflow.com
get list of words that are in two lists using set
r by Comfortable Cardinal on Nov 21 2020 Comment
0
Source: stackoverflow.com
Add a Grepper Answer
Python answers related to “python find uncommon elements in two lists”
- How to find the most similar word in a list in python
- python show only 1st element of nested lists
- find common words in two lists python
- how to select number by twos in a list python next to each
- find number of common element in two python array
- python common elements in two arrays
- python same values in two lists
- find different values from two lists python
- python difference between consecutive element in list
- find common elements in two lists python
- get common elements from two lists
- get most recurring element in a list python
- Faster way to find list of unique elements in a list
- python get unique pairs from two lists
- get all different element of both list python
- list of single item repeated python
- how to find the lowest value in a nested list python
- calculate the same value in list i python
Python queries related to “python find uncommon elements in two lists”
- subtract two lists python
- how to subtract lists in python
- python difference between two lists
- how to subtract 2 lists in python
- python subtract two lists element wise
- subtracting two lists python
- subtract two lists in python
- how do you subrtact two lists in python
- python list difference
- how to subtract a list from another list in python
- subtract two lists of strings python
- python subtractt two lists
- subtraction of lists in python
- python find difference between two lists
- how to subtract one list from another in python
- how to subtract two list in python
- get difference between two lists python
- two list subtract python
- python find uncommon elements in two lists
- subtraction of 2 lists in python
- python subtract two lists elements
- subtract two lists from each other python
- how to substract two list
- how to subtract list from another list in python
- diffrence between 2 lists in python through sets
- python subtract lists elementwise
- python find the difference between two lists
- find uncommon elements in two lists python
- python function to add and minus elements of two lists
- can we subtract two list
- subtract 2 list python
- how to subtract 2 lists of string in python
- how to do differece between two list
- finding difference of two lists python
- how to substarct two lists python
- how to check difference between two lists in python
- how to subtract a multiple in a list python
- subtrat 2 lists python
- subscribe two list in python
- python code to subtract elements of two lists
- how to find uncommon data in two lists in python
- symmetric difference between two list python
- calculate time difference between two lists
- compare two lists python differences
- python subtract values of items two lists
- how to arithmatic subtract two list python
- check how many different items between 2 arrays python
- python different values from two lists
- python range between two list items
- get the difference between two lists python
- subtract between two lists python
- python subtracts 2 lists
- how subtract all of 2 list
- difference between two list in python
- python subtract lists element by element
- get diffrence between both list
- define minus for lists python
- diff between two lists python
- python difference of lists
- python get difference between two lists
- diff of two lists python
- how to substract 2 lists in python
- how to find difference between two lists in python
- python list subtract 2 list
- find the difference between two lists in python
- difference between two numbers in list python
- sub two list in python
- differences between two lists python
- subtract 2 list python
- python substract 2 lists
- subtract two lists python string
- python subtrck two lists
- how to substract element of two lists
- how to subtract a list together in python
- python difference lists
- subtract in list using map in python
- how to subtract list place from another list in python
- how to get the difference between two list elements in python
- python list minus element
- python 2 list difference
- python find all difference between two lists
- python subtract two lists
- subtract 2 lists python
- subtract one list from another python
- subtracting lists python
- subtract elements of two lists python
- subtracting 2 lists in python
- check difference between two lists python
- python check difference between two lists
- subtraction of two lists in python
- list subtraction in python
- python subtraction between two lists
- how to subtract two list python
- subtraction in list python
- subtraction two lists python
- python list subtraction
- can we subtract two lists in python
- how to find the difference between two lists in python
- python subtract values of items in two lists
- python subtract elements of two lists
- substract two lists python
- subtract two list python
- python subtraction between two lisst
- python how to subtract two lists
- get ddifferenc 2d list python
- element wise difference between two lists python
- subtract one list to another list python
- python print list differences
- set difference between two lists python
- list subtraction python
- python get diff of two lists
- python subtract two list elements
- python subtract two lists elem
- apply symmetric diff between two list pandas
- how to find difference between two list containing integers in python
- python diff between two lists
- how to substract two lists in python
- get difference of list of numbers python
- pandas find difference between two lists
- how to subtract one list from other python
- subtract 2 elements in 1 list python
- difference of elements in 2 lists python
- how to minus two list in python
- how to get a list that is two lists subtracting in python
- python list difference method
- how to subtract two lists of same size in python
- python differenc of to list
- subtract two lists element wise python
- difference in list
- how to subtract 2 list in python
- make an and among two list in python
- python subtract two lists set
- python find values that difference between two lists
- python subract two lists
- finding differences lists python3
- python subtract list from another
- the difference between two lists python
- substract lists in python
- subtract two lists python with same length
- sub two list python
- sub two array in python
- finding the difference between two lists python
- print difference between two lists python
- python subtract two lists from each other
- element wise difference of two lists python
- get difference of two lists python
- how to diff two lists in python
- can i subtract 2 lists python
- subtract corresponding element in python list
- python subtract each element of 2 lists
- how to subtract list 2 from list 1 in python
- substract 2 lists python element by element
- python3 subtract two lists
- how to subtract elements of two lists element wise
- difference between two list python
- subtract part of a list python?
- how to subtract one litst from another python string
- get delta of two lists python
- subtraction of two lists python
- python check dfrerence beteen two lists
- difference two string lists python
- how to subtract two lists in python
- how to return diff in a list in python
- difference of two lists python
- subtract 2 elements of a list python
- difference between two lists python
- subtract two list in python
- how to subtract elements of two lists in python
- how to subtract all comms in a list python
- difference python list
- use counter find differences between two lists
- python subtract one list from another
- subtraction between lists python
- python substract two lists
- python subtract 2 lists
- subtract two list
- how to subtract two list
- subtract lists python
- python unique values between 2 lists
- subtract integers in two lists python
- subtract a list from another list python
- subtract two list elements python
- python list subtract another list
- subtract list from list python
- subtraction between two lists python
- python compare 2 lists for differences
- list difference python
- check the difference between two lists python
- compare two lists and find the different python
- python difference of two lists
- how to minus 2 lists in python
- how to find what is uncommon between two sets python
- get the difference between two lists
- find difference between list of integers python
- python compare lists and set
- python difference extract and return
- python diff between list elements
- python compare two lists for differences
- subscribe to two lists python
- find the difference between two list python
- subtract 2 elements in a list python
- how to subtract a list of lists by [3, 3] python
- python subtract two lists by element
- how to subtract two lists in python numpy
- how to subtract element between 2 lists in python
- subtract two lists number python
- find difference in two lists
- subract two lists python
- substract 2 list python
- subtract two lists python set
- python substract 2 list
- subtract elements in two lists python
- subtract elements of two lists
- minus two lists python
- difference of each value of two lists python
- how to subtract things in a list in python
- find the difference bewtween two list in python
- set minus with lists python
- list minus list python
- subtracting two list
- find difference between two lists python
- how to get difference in 2 lists pythn
- python difference list
- python zip lists and subtract
- difference between elements of two list python
- subtraction between 2 lists
- python substract 2 lists efficiently
- subtract 2 list elements python
- python subtract two lists of strings
- subtract two list from list python
- how to perform substration between two lists in python
- python how to substract two lists
- subtract two list from list python in one line
- difference between 2 string lists python
- get difference between lists python
- python diff lists
- python diff list of ints
- python difference between lists
- difference between 2 lists python
- subtracting two lists python
“find uncommon elements in two lists python” Code Answer’s
how to find uncommon elements in two lists in python
typescript by Brave Buffalo on Mar 15 2021 Comment
0
get list of words that are in two lists using set
r by Comfortable Cardinal on Nov 21 2020 Comment
0
Source: stackoverflow.com
Add a Grepper Answer
TypeScript answers related to “find uncommon elements in two lists python”
- how to compare two lists element by element in python and return matched element
- compare two lists and find at least one equal python
- How to compare two lists and return the number of times they match at each index in python
TypeScript queries related to “find uncommon elements in two lists python”
- uncommon elements in two lists python
- python check difference between two lists
- how to get uncommon elements from two lists in python
- python find difference between two lists
- python compare 2 lists for differences
- set difference between two lists python
- python get diff of two lists
- how to find uncommon data in two lists in python
- get the uncommon data from two list
- find uncommon elements in list of lists
- get uncommon elements from two lists python in first list
- uncommon elements in lists of list in python
- hwo to get uncommon part between two lists in python
- python get most 10 repeated elements in list
- check difference between two lists python
- get uncommon item out of two list
- find the difference between two list python
- check how many different items between 2 arrays python
- calculate time difference between two lists
- python unique values between 2 lists
- python diff between list elements
- finding difference of two lists python
- pandas find difference between two lists
- get difference of list of numbers python
- python difference extract and return
- python range between two list items
- symmetric difference between two list python
- python subtractt two lists
- how to return diff in a list in python
- find uncommon elements in two lists python
- python difference between two lists
- python list difference
- find uncommon elements in two arrays python
- compare two lists and find the different python
- get uncommon elements from two lists python
- list all uncommon elements between two lists python
- hwo to compare two list and find uncommon element in python
- python get uncommon element between two list
- uncommon from 2 lists python
- how to find the uncommon element betwwen two list
- how to find uncommon elements in two arrays python
- python see uncommon items between two lists
- how to find uncommon elements between two lists in python
- python return uncommon between two lists
- python list difference method
- python differenc of to list
- find difference in two lists
- python find values that difference between two lists
- make an and among two list in python
- python different values from two lists
- get the difference between two lists
- how to check difference between two lists in python
- how to find what is uncommon between two sets python
- how to find difference between two list containing integers in python
- get ddifferenc 2d list python
- python find uncommon elements in two lists
- how to find uncommon elements in two lists in python
- use counter find differences between two lists
- difference between two lists python
- print uncommon elements from two lists python
- check the difference between two lists python
- difference of two lists python
- two list get uncommon elements in python
- python find all difference between two lists
- how to identify uncommon elements between 2 lists in python
- find the uncommon value from two list in python
- python uncommon elements in two lists
- python take out uncommon data from two list
- find the list of uncommon elements from 2 lists using set
- common and uncommon elements in two arrays python
- how to get uncommon values between two lists
- find difference between list of integers python
- how to minus two list in python
- compare two lists python differences
- diffrence between 2 lists in python through sets
- python compare lists and set
- apply symmetric diff between two list pandas
- difference in list
- python compare two lists for differences
- difference of elements in 2 lists python
- how to do differece between two list
- python diff between two lists
- get the difference between two lists python
- how to find uncommon values in 2 list in python
Find the common elements in two lists in Python
By Shriprakash Tiwari
In this tutorial, We are going to learn how to find the common elements in two lists in Python.
To find the common list from two lists, we have to store the common elements in the third variable. There are various methods to find and store the common elements from two lists.
Using the intersection[] Function
This is the easiest method to find common elements in two lists in Python. As the name suggests, the intersection[] function is a built-in python function that is used to return a set that contains the elements which are common in two sets. The sets can be of any form i.e a list or a dictionary.
Example:
1 2 3 4 5 6 7 | if __name__ == '__main__': list_one = [5, 10, 15, 20, 25, 30] list_two = [10, 20, 30, 40, 50, 60] common_list = set[list_one].intersection[list_two] print[common_list] |
Output:
{10, 20, 30}
Note that, __name__ variable is used in the above code. It is a built-in variable that is used to see whether the current code is being run on its own or an external module is being imported from somewhere. Thus, the __name__ variable checks the name of the current module in the ongoing code. It is usually used with an if statement and where it is assigned to '__main__' when there is no module in the program. Otherwise, __name__ is assigned to the name of the module used in the program.
1. Using intersection[] function
A simple and fairly efficient solution is to convert the first list into a set and then call the intersection[] function. It returns a new set with elements common to the set with another iterable.
1 2 3 4 5 6 7 8 9 | if __name__ == '__main__': first = [1, 2, 3, 5] second = [2, 4, 5, 7] common = set[first].intersection[second] print[common]# {2, 5} |
DownloadRun Code