25 minBeginnerLesson 5/5

Pattern matching

Python 3.10+ mein structured alternatives ke liye match/case use karo.

PDF · Chapter 11.6 · p.31
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
  • Pattern Matching 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 Pattern Matching 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

match subject ko patterns se compare karta hai. Final case _ fallback hota hai, bilkul else jaisa.

Real-world connection

Help desk har command ko matching service counter par route 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

  • Python 3.10+ mein structured alternatives ke liye match/case use 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
Sawaal
age >= 18 ?
01

Sawaal

Condition hamesha True ya False banti hai.

Runnable example

Pattern Matching: 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

Fallback pattern kaunsa hai?

Beginner
Coding task · 20 points

Code ko complete karo

Status 404 ko not-found se match karo.

challenge.py
Python 3.14 · 5s limit

Key takeaways

  • match subject ko patterns se compare karta hai. Final case _ fallback hota hai, bilkul else jaisa.
  • 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.