Hello World in Python

 The first program that beginners write in any programming language is the "Hello, World!" program. It is a simple way to test if Python is installed correctly and to understand basic syntax.

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Writing "Hello, World!" in Python

To print "Hello, World!" in Python, follow these steps:

1. Open a Python Environment

   • You can use the Python IDLE, a text editor, or an IDE like VS Code or PyCharm.
   • Alternatively, open a terminal (Command Prompt, Terminal, or PowerShell).

2. Write the Python Code

   print("Hello, World!")
   

3. Run the Python Code

   • If using an IDE, save the file as hello.py and run it.
   • If using the command line, navigate to the file location and run:

     python hello.py
     

   • You will see the output:

     Hello, World!
     

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Understanding the Code

• print() → This is a built-in Python function used to display text on the screen.
• "Hello, World!" → The message inside the parentheses is called a string and should be enclosed in double ("") or single ('') quotes.

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Running "Hello, World!" in an Interactive Shell

You can also run this program directly in the Python interactive shell:

1. Open a terminal or command prompt.

2. Type python or python3 to start the interactive mode.

3. Type the following and press Enter:

   print("Hello, World!")
   

4. You will see:

   Hello, World!
   

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Advanced "Hello, World!" Examples

1. Storing in a Variable:

   message = "Hello, World!"
   print(message)
   

2. Using String Formatting:

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

3. Using Multi-line Strings:

   print("""Hello,
   World!""")
   

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Conclusion

The "Hello, World!" program is a simple yet essential step for beginners to get started with Python. Once you have successfully run this program, you are ready to explore more Python concepts! 🚀