Python First Program

Now that you have Python installed, let’s write and run your first Python program! 🚀

1. Writing Your First Python Program

Open any text editor or Python IDE and create a new file named hello.py.
Now, type the following code:

print("Hello, World!")

💡 Explanation:

• print() is a built-in function that displays output.
• "Hello, World!" is a string that gets printed on the screen.

2. Running the Python Program

Method 1: Using the Command Line

1. Open the terminal or command prompt.
2. Navigate to the folder where hello.py is saved.
3. Run the program:

   python hello.py
   

   Try It Now

   Output:

   Hello, World!
   

   Try It Now

Method 2: Using Python IDLE

1. Open Python IDLE.
2. Click File → New File and enter the code.
3. Save the file as hello.py.
4. Click Run → Run Module (F5).

3. Running Python in Interactive Mode

You can also run Python commands directly in the terminal without saving a file.

python

Then type:

print("Hello, Python!")

Press Enter, and you will see:

Hello, Python!

4. Python Program with Variables

Let’s modify the program to use variables:

name = "Alice"
print("Hello,", name)

Output:

Hello, Alice

5. Taking User Input

We can also ask for user input and display a message:

name = input("Enter your name: ")
print("Welcome, " + name + "!")

Example Output:

Enter your name: John  
Welcome, John!