Home/Seekho/Variables aur Data Types/Type conversion aur validation
25 minBeginnerLesson 5/5

Type conversion aur validation

Input deliberately convert karo aur invalid values cleanly reject karo.

PDF · Chapter 8 · p.19-20
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
  • Type Conversion and Validation 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 Type Conversion and Validation 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

int(), float(), str(), list() aur tuple() valid conversion par nayi typed value banate hain. Invalid conversion exception deta hai.

Real-world connection

Conversion ticket counter jaisa hai - input destination format ke layak hona chahiye.

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

  • Input deliberately convert karo aur invalid values cleanly reject 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
Khali label
name = ?
01

Khali label

Variable ko naam waale label ki tarah socho.

Runnable example

Type Conversion and Validation: 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

int("hello") kya raise karta hai?

Beginner
Coding task · 20 points

Code ko complete karo

Text 125 ko integer mein convert karo.

challenge.py
Python 3.14 · 5s limit

Key takeaways

  • int(), float(), str(), list() aur tuple() valid conversion par nayi typed value banate hain. Invalid conversion exception 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.