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Best Practices for Handling Duplicate Elements in Python Lists

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Here are three awesome ways that you can use to remove duplicates in a list. These are helpful in resolving your data analytics solutions.  01. Using a Set Convert the list into a set , which automatically removes duplicates due to its unique element nature, and then convert the set back to a list. Solution: original_list = [2, 4, 6, 2, 8, 6, 10] unique_list = list(set(original_list)) 02. Using a Loop Iterate through the original list and append elements to a new list only if they haven't been added before. Solution: original_list = [2, 4, 6, 2, 8, 6, 10] unique_list = [] for item in original_list:     if item not in unique_list:         unique_list.append(item) 03. Using List Comprehension Create a new list using a list comprehension that includes only the elements not already present in the new list. Solution: original_list = [2, 4, 6, 2, 8, 6, 10] unique_list = [] [unique_list.append(item) for item in original_list if item not in unique_list] All three methods will result in uni

Python Tuples: An Overview with Code Examples

Tuple in python is one of the streaming datasets. The other streaming datasets are List and Dictionary. Operations that you can perform on it are shown here for your reference.

Writing tuple is easy. It has values of comma separated, and enclosed with parenthesis '()'. The values in the tuple are immutable, which means you cannot replace with new values.


How to use tuple in python


#1. How to create a tuple


Code: Tuple example

my_tuple=(1,2,3,4,5)

print(my_tuple)


Output:


(1, 2, 3, 4, 5)


** Process exited - Return Code: 0 **

Press Enter to exit terminal


#2. How to read tuple values


Code:

print(my_tuple[0])


Output:


1

** Process exited - Return Code: 0 **

Press Enter to exit terminal


#3. How to add two tuples



Code:

a=(1,6,7,8)
c=(3,4,5,6,7,8)

d=print(a+c)


Output:

(1, 6, 7, 8, 3, 4, 5, 6, 7, 8)

** Process exited - Return Code: 0 **
Press Enter to exit terminal


#4.  How to count tuple values

Here the count is not counting values; count the repetition of a given value.

Code:

sample=(1, 6, 7, 8, 3, 4, 5, 6, 7, 8)
print(sample.count(8))


Output:

2


** Process exited - Return Code: 0 **
Press Enter to exit terminal


#5. How to get index of a tuple value



Code:

sample=(1, 6, 7, 8, 3, 4, 5, 6, 7, 8)
print(sample.index(8))



Output:

3


** Process exited - Return Code: 0 **
Press Enter to exit terminal

Note: 

It has given an index for the first occurrence. If you seek an index for all the items, you need to use for loop. Even though values are repeated, it shows the same index.


sample=(1, 6, 7, 8, 3, 4, 5, 6, 7, 8)


for a in sample:
print(sample.index(a))


Output:

0
1
2
3
4
5
6
1
2
3


** Process exited - Return Code: 0 **
Press Enter to exit terminal


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