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PYFunctions in Python
Functions in Python are blocks of code that perform a specific task.
Instead of writing the same code again and again, you can put it inside a function and just “call” it whenever needed.
Think of a function like a machine: you give it some input, it does some work, and then it gives you an output.
👉 | Why use Functions?
♦️ | Helps avoid repeating code.
♦️ | Makes programs easier to read.
♦️ | Keeps code organized.
👉 | How to Define a Function in Python?
We use the def keyword:
def greet():
print("Hello, welcome to Python!")
Here:
♦️ | def → tells Python we’re defining a function.
♦️ | greet → is the function name.
♦️ | Inside, we wrote what the function should do.
👉 | Calling the Function
To use (or call) the function, just write its name followed by ():
greet()
Output: Hello, welcome to Python!
✅ Summary
♦️ | Functions = reusable blocks of code.
♦️ | Defined using def.
♦️ | Run them by calling their name with ().
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