Getting Started with Python
Python is a high-level programming language that emphasizes code readability. Let's start with some basic concepts:
1. Variables and Data Types
Variables are containers for storing data values. Python has several basic data types:
# Numbers age = 25 # integer price = 19.99 # float # Strings name = "John" message = 'Hello, World!' # Boolean is_student = True is_working = False # Lists numbers = [1, 2, 3, 4, 5] names = ["Alice", "Bob", "Charlie"]
2. Basic Operations
Python supports various mathematical and string operations:
# Mathematical operations sum = 10 + 5 # Addition diff = 10 - 5 # Subtraction product = 10 * 5 # Multiplication quotient = 10 / 5 # Division # String operations greeting = "Hello" name = "World" message = greeting + " " + name # String concatenation repeated = "Ha" * 3 # String repetition
3. Print Statements
The print() function is used to output text to the console:
print("Hello, World!")
name = "Alice"
age = 25
print("My name is", name, "and I am", age, "years old.")
print(f"My name is {name} and I am {age} years old.") # f-string
4. Input from Users
The input() function allows you to get input from users:
name = input("What is your name? ")
age = int(input("How old are you? ")) # Convert string to integer
print(f"Hello {name}, you are {age} years old!")
5. Comments
Comments are used to explain code and are ignored by Python:
# This is a single-line comment ''' This is a multi-line comment ''' # Variables x = 5 # This is an integer y = "Hello" # This is a string
Conclusion
Python is a high-level programming language known for its readability. It uses variables to store data, supports numbers, strings, boolean values, and lists. Basic operations like math and string manipulation are possible. The print() function outputs text and input() function allows user input. Comments can be used for explanations