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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...

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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