Example output
Here's a simple "Hello World" program in Python:
Python
# Hello World Program
def main():
"""
Prints 'Hello, World!' to the console.
Returns:
None
"""
print("Hello, World!")
if __name__ == "__main__":
main()
Explanation:
The main function encapsulates the program's primary logic.
The docstring provides a brief description of the function's purpose.
The print statement outputs "Hello, World!" to the console.
The if __name__ == "__main__" block ensures main is called when the script is run directly.
Best Practices:
Clear function naming and structure.
Docstrings for documentation.
Proper indentation (4 spaces).
Simple, concise code.
Applicability:
This code serves as a foundation for various Python applications:
Web Development: Use as a starting point for Flask or Django projects.
Data Analysis: Import libraries like Pandas and NumPy within the main function.
Automation: Replace print with automation logic (e.g., file operations).
Machine Learning: Import libraries like TensorFlow or Scikit-learn within main.
Running the Code:
Save this code in a file (e.g., hello.py) and execute it using Python:
Bash
python hello.py
Output:
Hello, World!