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Python Set Operations Explained: From Theory to Real-Time Applications

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A  set  in Python is an unordered collection of unique elements. It is useful when storing distinct values and performing operations like union, intersection, or difference. Real-Time Example: Removing Duplicate Customer Emails in a Marketing Campaign Imagine you are working on an email marketing campaign for your company. You have a list of customer emails, but some are duplicated. Using a set , you can remove duplicates efficiently before sending emails. Code Example: # List of customer emails (some duplicates) customer_emails = [ "alice@example.com" , "bob@example.com" , "charlie@example.com" , "alice@example.com" , "david@example.com" , "bob@example.com" ] # Convert list to a set to remove duplicates unique_emails = set (customer_emails) # Convert back to a list (if needed) unique_email_list = list (unique_emails) # Print the unique emails print ( "Unique customer emails:" , unique_email_list) Ou...
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Python Tuples: An Overview with Code Examples

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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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