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Functions define aur call karo

Reusable behavior ko naam aur documentation do.

PDF · Chapter 14 · p.36-37
1 · Samjho

Idea, words aur real-world use pehle padho.

2 · Karke dekho

Example run karo, phir code task solve karo.

3 · Samjhaao

Quick check aur apne notes se concept explain karo.

Is lesson ke baad
  • Define and Call Functions ko apne words mein explain kar paana.
  • Working example ko run aur modify kar paana.
Yahin se start karo - pehle se kuch aana zaroori nahi

Kisi question ka answer dene se pehle hum samjhenge ki Define and Call Functions ka matlab kya hai, ye kahan useful hai aur example kaise behave karta hai. Naye words aate hi explain kiye gaye hain.

Idea ko samjho

def function object banata hai. Body call hone par run hoti hai aur docstring contract explain karta hai.

Real-world connection

Washing machine program repeatable process ko ek button ke peeche rakhta hai.

Example ko step-by-step padho

  1. 1Program mein banaye gaye names aur values pehchaano.
  2. 2Har line ko top-to-bottom trace karo aur dekho wo kya change karti hai.
  3. 3Run Python dabane se pehle output predict karo, phir ek value change karo.

Kya yaad rakhna hai

  • Reusable behavior ko naam aur documentation do.
  • Mistake useful feedback hai: error ki last line padho, ek cheez change karo aur dobara run karo.
Interactive concept lab

Concept ko step-by-step dekho

Arrows use karke data ka safar samjho.

3D flow · 1/3
Define karo
def greet(name):
01

Define karo

Function reusable steps ko ek jagah rakhta hai.

Runnable example

Define and Call Functions: working example

Example run karo, phir ek value change karke apni understanding test karo.

example.py
Python 3.14 · 5s limit
Quick check · 10 points

Function body kab run hoti hai?

Intermediate
Coding task · 20 points

Code ko complete karo

greet define karo taaki result Namaste, Ravi! bane.

challenge.py
Python 3.14 · 5s limit

Key takeaways

  • def function object banata hai. Body call hone par run hoti hai aur docstring contract explain karta hai.
  • Is idea ko seekhne ka fastest way example ko change karke rerun karna hai.
Previous

Pass the quick check and coding task to complete this lesson.