Saturday, 1 June 2024

Python Coding challenge - Day 222 | What is the output of the following Python Code?

 

Code:

my_num = -2 print(5 % my_num)

Solution and Explanation:

In Python, the expression 5 % my_num uses the modulus operator %, which gives the remainder of the division of the left operand by the right operand. Let's break down the specific example:

  1. Define the variable: my_num = -2

    • This assigns the value -2 to the variable my_num.
  2. Modulus operation: 5 % my_num

    • Here, you are performing the modulus operation with 5 and -2.

In Python, the result of a % b is defined as the remainder when a is divided by b, and it has the same sign as the divisor b. The formula to compute the result of a % b is:

๐‘Ÿ=๐‘Ž(๐‘×floor(๐‘Ž๐‘))

Where floor is the mathematical floor function, which rounds down to the nearest integer.

Let's apply this to our example:

  • Division: 52=2.5
  • Floor of the division: floor(2.5)=3
  • Multiply the divisor by the floored value: 2×3=6
  • Subtract this value from the dividend: 56=1

So, 5%2 results in -1.

Therefore, the output of the code:

my_num = -2 print(5 % my_num)

will be -1.


Friday, 31 May 2024

Programmation pour tous (mise en route de Python)

 

Introduction

Si vous รชtes dรฉbutant en programmation et que vous souhaitez apprendre Python, le cours "Programming for Everybody (Getting Started with Python)" de l'Universitรฉ du Michigan sur Coursera est parfait pour vous. Ce cours, dispensรฉ en franรงais, couvre les bases essentielles de la programmation en Python et est conรงu pour ceux qui n'ont aucune expรฉrience prรฉalable en codage.

Contenu du Cours

Le cours comprend :

  • Installation de Python : Guide รฉtape par รฉtape pour installer Python sur votre ordinateur.
  • ร‰criture de votre premier programme : Introduction aux bases de la syntaxe Python.
  • Utilisation des variables et des fonctions : Apprenez ร  manipuler les donnรฉes et ร  structurer votre code.
  • Boucles et instructions conditionnelles : Dรฉcouvrez comment contrรดler le flux de votre programme.

Structure du Cours

Le cours est structurรฉ de maniรจre ร  faciliter l'apprentissage avec des vidรฉos explicatives, des lectures, des quiz interactifs et des devoirs pratiques. Il est conรงu pour รชtre suivi ร  votre propre rythme, ce qui vous permet de l'adapter ร  votre emploi du temps.

Pourquoi Apprendre Python?

Python est un langage de programmation polyvalent et trรจs populaire. Il est utilisรฉ dans divers domaines tels que le dรฉveloppement web, l'analyse de donnรฉes, l'intelligence artificielle, et bien plus encore. En apprenant Python, vous ouvrez la porte ร  de nombreuses opportunitรฉs professionnelles.

Certification

ร€ la fin du cours, vous aurez la possibilitรฉ d'obtenir un certificat partageable qui peut enrichir votre CV et dรฉmontrer vos compรฉtences en programmation Python.

Conclusion

Le cours "Programming for Everybody (Getting Started with Python)" est une excellente opportunitรฉ pour dรฉbuter en programmation. Il offre une introduction complรจte et accessible ร  Python, avec le soutien d'une institution prestigieuse comme l'Universitรฉ du Michigan.

Pour plus d'informations et pour vous inscrire, visitez la page du cours sur Coursera. Bon apprentissage !

rejoindre gratuitement: Programmation pour tous (mise en route de Python)

Python Coding challenge - Day 221 | What is the output of the following Python Code?

 

Code:

def foo():

    try:

        return 1

    finally:

        return 2

print(foo())

Solution and Explanation:

The code defines a function foo that contains a try block and a finally block, and then prints the result of calling this function. Here's a step-by-step explanation:

Function Definition: 

def foo():

This line defines the function foo.

Try Block:

try: return 1

Inside the try block, the function attempts to return the value 1.

Finally Block:

finally:

    return 2

The finally block is guaranteed to execute, regardless of what happens in the try block. In this case, the finally block contains a return statement that returns the value 2.

Calling the Function and Printing the Result:

print(foo())

  1. This line calls the foo function and prints its return value.

What Happens When the Function is Called:

  • When foo is called, it enters the try block and executes return 1.
  • Normally, return 1 would cause the function to exit immediately, returning 1. However, because there is a finally block, Python executes the finally block before the function completes.
  • The finally block contains return 2. This statement overrides the previous return 1, so the function returns 2 instead.

Conclusion:

The finally block in Python always gets executed, and if it contains a return statement, it will override any return value from the try block. Therefore, the output of print(foo()) will be 2.

def foo(): try: return 1 finally: return 2 print(foo()) # This will output: 2


Popular Posts

Categories

100 Python Programs for Beginner (118) AI (152) Android (25) AngularJS (1) Api (6) Assembly Language (2) aws (27) Azure (8) BI (10) Books (251) Bootcamp (1) C (78) C# (12) C++ (83) Course (84) Coursera (298) Cybersecurity (28) Data Analysis (24) Data Analytics (16) data management (15) Data Science (217) Data Strucures (13) Deep Learning (68) Django (16) Downloads (3) edx (21) Engineering (15) Euron (30) Events (7) Excel (17) Finance (9) flask (3) flutter (1) FPL (17) Generative AI (47) Git (6) Google (47) Hadoop (3) HTML Quiz (1) HTML&CSS (48) IBM (41) IoT (3) IS (25) Java (99) Leet Code (4) Machine Learning (186) Meta (24) MICHIGAN (5) microsoft (9) Nvidia (8) Pandas (11) PHP (20) Projects (32) Python (1218) Python Coding Challenge (884) Python Quiz (342) Python Tips (5) Questions (2) R (72) React (7) Scripting (3) security (4) Selenium Webdriver (4) Software (19) SQL (45) Udemy (17) UX Research (1) web application (11) Web development (7) web scraping (3)

Followers

Python Coding for Kids ( Free Demo for Everyone)