Python Questions

Using the ''.join() method.

Using the '%s' operator.

Using the '+' operator.

It depends on the size of the strings.

To store data in a structured format like dictionaries.

To control program flow and logic.

To create reusable blueprints for objects with shared attributes and behaviors.

To define functions for specific tasks.

Preventing the use of inheritance

Exposing all data and methods publicly

Bundling data and methods that operate on that data into a single unit (a class)

Allowing direct modification of an object's internal state from anywhere in the program

datetime.datetime.now()

datetime.now

datetime.today()

datetime.currentTime()

To change the behavior of a function without modifying its source code.

To create recursive functions.

To define a function within another function.

To improve the performance of a function.

Read and write to the file.

Create a new file for writing.

Append data to an existing file.

Open the file in read mode.

There is no difference; both *args and **kwargs can be used interchangeably.

*args is used for passing arguments by value, while **kwargs is used for passing arguments by reference.

*args passes a variable number of positional arguments, while **kwargs passes a variable number of keyword arguments.

*args passes a list of arguments, while **kwargs passes a dictionary of arguments.

include math

import math

using math

require math

Hello, world!

Hell0, world!

Error

Hell0, w0rld!

Command line arguments passed to the script

Environment variables

Contents of the current working directory

System error messages