"Hello World" in Python

Key takeaways:

  • Writing “Hello, World” in Python is straightforward and requires only one line of code, demonstrating Python’s easy-to-read and beginner-friendly syntax: print("Hello, World")

  • Writing a simple program like “Hello, World” introduces core concepts like using the print() function, working with strings, and understanding case sensitivity in Python.

  • Running “Hello, World” helps you test your programming environment, provides instant feedback, and builds confidence to learn more topics.

“Hello, World” is often the first program beginners write when learning a new programming language. It is a simple yet powerful introduction to the basics of coding, helping new programmers understand the syntax and structure of the language they are exploring. In Python, creating a “Hello, World” program is particularly straightforward, thanks to Python’s minimalistic and easy-to-read syntax.

Using python IDE
Using python IDE

First Python program: “Hello, World”

To print “Hello, World” in Python, you only need a single line of code:

print("Hello World")

Understanding the code

  • print() function: In Python, print() is a built-in function that outputs text or other data to the console. The text to be printed is enclosed in either single quotes (') or double quotes (").

    • Case sensitivity: Python is case-sensitive, so writing Print() instead of print() will result in an error.

Exploring variations of “Hello, World”

We can now experiment with slightly more advanced methods as we have learned how to print a basic variation of “Hello, World”.

1. Using variables

We can also store the string in a variable:

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

2. Adding emojis

We can add emojis to make the string more appealing:

print("Hello, World! 🌍")

3. Multi-line strings

A string can also be printed in multiple lines:

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

4. With string formatting

String formatting gives a neat outlook to the final print statement:

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

Key difference: The output is the same ("Hello, World!") in both cases (first Python program: “Hello, World!” and With string formatting). The f-string approach is often preferred for readability, especially when embedding multiple expressions, as it is cleaner and easier to manage.

5. Writing “Hello, World!” in different languages

The Python IDE supports multiple languages to write code in:

print("Bonjour, le monde!")  # French
print("Hola, Mundo!")       # Spanish
print("こんにちは、世界!")    # Japanese

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Conclusion

The “Hello, World” program begins your Python programming journey. Its simplicity and versatility make it an ideal starting point for exploring more complex concepts. Once you’ve mastered this first program, you can move on to creating variables, using conditional statements, and building functions. Python’s simplicity ensures that your learning curve remains smooth and enjoyable.

Frequently asked questions

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How do you start a Python?

To start using Python, follow the steps below:

1. Install Python:

  • Download Python from the official Python website.
  • Follow the installation instructions for your operating system (Windows, macOS, or Linux).
  • During installation, ensure the “Add Python to PATH” option is checked.

2. Open the Python interpreter:

After installation, start Python in the following ways:

  • On Windows: Open the command prompt (search for cmd) and type python.
  • On macOS/Linux: Open the terminal and type python3 (or python if python3 is not required).

This will open the interactive Python shell where you can execute Python commands.

3. Write the Python code:

  • To test simple Python code, type directly into the Python shell.
    Example:
    print("Hello, World!")
  • To write and execute scripts, create a .py file using a text editor or an IDE like VS Code, PyCharm, or Jupyter Notebook.
    Save the file and run it from the terminal using:
    python filename.py

4. Install an IDE (Optional):

To make coding easier, you can use an Integrated Development Environment (IDE) like:

  • VS Code
  • PyCharm
  • Jupyter Notebook

How to code “Hello, World!”

  • Open your chosen IDE/text editor.

  • Create a new file and save it with a .py extension.

  • Write the code: print("Hello, World").

How to write “Hello, World!’ five times in Python?

for i in range(5):
    print("Hello, World!")

Is “Hello, World!” a string in Python?

Yes, "Hello, World!" is a string in Python. A string is a sequence of characters enclosed in either single quotes (') or double quotes ("). In this case, "Hello, World!" is enclosed in double quotes, so it is a valid string.

How do I write my first code in Python?

Writing your first code in Python is simple! Follow these steps:

1. Set up Python:

  • Ensure Python is installed on your computer. You can download it from the official Python website.
  • During installation, check the option “Add Python to PATH”.

2. Open a code editor or IDE:

You can write Python code in:

  • An IDE: Use PyCharm, VS Code, or Jupyter Notebook for a better experience.
  • A text editor: Use Notepad (Windows), TextEdit (macOS), or any simple editor.
  • The Python Interactive Shell: Open Python in your terminal or command prompt.

3. Write your code:

Create a new file and save it with a .py extension. Write the following code in the file:

print("Hello, World!")

4. Run your code:

  • Open your terminal or command prompt.
  • Navigate to the folder where your .py file is saved using the cd command.
  • Run the file with the python command:
    python hello.py

Output:

Hello, World!

What is the first line of Python code?

The first line of Python code depends on the program you are writing. For most simple Python scripts, the first line often includes a function, statement, or comment.

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