1. The print() Function

The print() function serves as your primary tool for displaying output in Python. It enables you to show text, variables, or any data that you need to observe.

message = "Hello, Python!"

print(message)

2. The input() Function

When you want to collect input from a user, the input() function is invaluable. It prompts the user to enter something and returns the entered value as a string.

name = input("What's your name? ")

print(f"Hello, {name}!")

3. The len() Function

The len() function is your reliable ally for determining the length of sequences such as strings, lists, or tuples.

my_list = [1, 2, 3, 4, 5]

length = len(my_list)

print(f"The length of the list is {length}.")

4. The range() Function

If you need to quickly generate a sequence of numbers, the range() function is your best bet.

my_range = range(1, 6) # Produces numbers from 1 to 5

for num in my_range:

print(num)

5. The sum() Function

Summing a list of numbers is a frequent requirement. The sum() function elegantly handles this task.

my_numbers = [1, 2, 3, 4, 5]

total = sum(my_numbers)

print(f"The sum is {total}.")

6. The sorted() Function

Need to sort a list? The sorted() function organizes the elements and returns a new list.

my_list = [5, 3, 1, 4, 2]

sorted_list = sorted(my_list)

print(f"Sorted list: {sorted_list}")

7. The max() and min() Functions

When working with numerical data, max() and min() help you easily identify the largest and smallest values, respectively.

numbers = [45, 67, 12, 98, 23]

maximum = max(numbers)

minimum = min(numbers)

print(f"Max: {maximum}, Min: {minimum}")

8. Data Type Conversion Functions: str(), int(), and float()

These functions enable you to convert between various data types. str() transforms into a string, int() into an integer, and float() into a floating-point number.

number_str = "42"

number_int = int(number_str)

number_float = float(number_str)

9. The enumerate() Function

When iterating through a list, you may often need both the value and its index. The enumerate() function conveniently provides both.

fruits = ["apple", "banana", "cherry"]

for index, fruit in enumerate(fruits):

print(f"Index {index}: {fruit}")

10. The zip() Function

The zip() function merges multiple iterables into one, making it ideal for iterating over several lists simultaneously.

names = ["Alice", "Bob", "Charlie"]

scores = [85, 92, 78]

for name, score in zip(names, scores):

print(f"{name}: {score}")