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Python: Built-in Functions vs. For & If Loops – 5 Programs Explained

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Python’s built-in functions make coding fast and efficient. But understanding how they work under the hood is crucial to mastering Python. This post shows five Python tasks, each implemented in two ways: Using built-in functions Using for loops and if statements ✅ 1. Sum of a List ✅ Using Built-in Function: numbers = [ 10 , 20 , 30 , 40 ] total = sum (numbers) print ( "Sum:" , total) 🔁 Using For Loop: numbers = [ 10 , 20 , 30 , 40 ] total = 0 for num in numbers: total += num print ( "Sum:" , total) ✅ 2. Find Maximum Value ✅ Using Built-in Function: values = [ 3 , 18 , 7 , 24 , 11 ] maximum = max (values) print ( "Max:" , maximum) 🔁 Using For and If: values = [ 3 , 18 , 7 , 24 , 11 ] maximum = values[ 0 ] for val in values: if val > maximum: maximum = val print ( "Max:" , maximum) ✅ 3. Count Vowels in a String ✅ Using Built-ins: text = "hello world" vowel_count = sum ( 1 for ch in text if ch i...
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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.  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 i...
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