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The Last Python 3.11alpha (3.11.0a7) is available !

on April 22, 2022

news programming Python

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How to Start: Python programming beginner Tutorial

on February 14, 2022

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List Methods in Python .

on January 28, 2021

append clear copy count extend index list list_methods methods programming Python Python tutorial for beginners

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List of websites to help you learn Python Programming

on March 22, 2020

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Try/Except- Prevent from crashing program if user input is no integer - Python

When we need to ask the user to enter a number, we use int(input()) . However, if the user enters a non-integer value, the program will usually crash with the error: ValueError: invalid literal for int() with base 10 . There is a way to prevent this error. How to prevent: ValueError: invalid literal for int() To prevent program from crash because of invalid input you can use try/except block to catch exception. If the user enters a non-integer in int(input()) , you can catch the error and ask them to enter a number again using a try / except block inside a while loop. Example 1: Enter a number: g Try again. You can enter numbers only. Enter a number: q Try again. You can enter numbers only. Enter a number: d Try again. You can enter numbers only. Enter a number: 2 4 Process finished with exit code 0 In line 1, an infinite while loop is created. Inside the try / except block, the user is asked to enter an integer. If they do, the loop stops with the break statement in line 5. If ...

Python Functions - what function is and what it does.

Python Functions Beginner Tutorial Functions make the code organized, easy to read, save time and because you no need to write the same lines of codes when repeating same operation you save the memory with number of lines. What are the functions in Python? Function is a block of code which runs whenever is called. Functions are defined by "def" keyword and followed by the name of function and both closing and opening parentheses and colon, the block of code with instructions is in the following indented lines. To call function use function_name() without "def " this time def function_name(): ..... ..... function_name() Think about functions like employs in the Restaurant, everyone has its function to do: Welcoming desk does welcome customers, Waiter - does take orders, Chef does cook meals, Waiter2- brings the food and takes back dishes. Everyone has defined functions and that makes the job organized. Same do functions in...

Set Methods in Python

Set Methods In Python Python Set Methods Sets similarly to list have also built in methods to use on sets however these methods are different and I'll explain them to you with examples. Built in Set Methods in Python: add() clear() copy() difference() difference_update() discard() intersection() intersection_update() isdisjoint() issubset() issuperset() pop() remove() symmetric_difference() symmetric_difference_update() union() update() add() set.add(element) Adds an element to the set. animals = { "goat" , "monkey" , "chicken" } animals.add( "sheep" ) print (animals) __________________________________________________________________ /usr/ bin /python3 .8 https :// viteac.blogspot. com { 'chicken' , 'sheep' , 'monkey' , 'goat' } clear() set .clear() Removes all the elements from the set. animals = { "goat" , "monkey" , "chicken" , 'sheep' } ani...

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