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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 Split String: Techniques and Best Practices

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Here is an example for splitting a string in Python. The functions you need are strip and split to split string, or text. 

python split string


Here's the string taken for split

My task is I want to split address string. Historically, the address is lengthy. It contains the door number, floor number, street number, and street name.

Rama Krishna 20/3 ABC street EFG Nagar US 234567

How to Split a string

The python split string works in two steps. The first step is to use strip function, which removes both leading and trailing spaces. Next, use the the split function, which splits the input string, or text into a list.

Python program

user_address = input("Enter an address")

if user_address.strip(): #check that string is not empty (after removing leading
#and trailing spaces)
    print("Your address is " + user_address)
split_address = user_address.split()
print(split_address)

Output

Interactively, it asks the user to enter the address. After the code runs, the address splits into separate strings in a list.

Enter an address
Rama Krishna 20/3 ABC street EFG Nagar US 234567

Your address is Rama Krishna 20/3 ABC street EFG Nagar US 234567
['Rama', 'Krishna', '20/3', 'ABC', 'street', 'EFG', 'Nagar', 'US', '234567']

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

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