GetArtifactPyPythonSeekho
Home/Seekho/Loops/Range aur counting
25 minBeginnerLesson 2/5

Range aur counting

Predictable integer sequences generate karo.

PDF · Chapter 12.1 · p.32-33
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
  • Range and Counting 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 Range and Counting 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

range(start, stop, step) lazy hota hai aur stop exclude karta hai. range(5) 0 se 4 deta hai.

Real-world connection

Metro route destination boundary se pehle ke stations include karta 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

  • Predictable integer sequences generate karo.
  • 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
Collection
[10, 20, 30]
01

Collection

Loop un items se shuru hota hai jinhe visit karna hai.

Runnable example

Range and Counting: 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

list(range(3)) kya hai?

Beginner
Coding task · 20 points

Code ko complete karo

1 se 9 tak odd numbers banao.

challenge.py
Python 3.14 · 5s limit

Key takeaways

  • range(start, stop, step) lazy hota hai aur stop exclude karta hai. range(5) 0 se 4 deta 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.