built-in modules in python w3schools

Dylan 122 Published: 12/01/2024

built-in modules in python w3schools

I apologize for the misunderstanding earlier! I'll respond in English and provide information on built-in modules in Python, as per your request.

According to W3Schools, Python has a vast array of built-in modules that can be used to perform various tasks. These modules are already installed with Python and do not need to be downloaded separately. Here are some examples:

math: This module provides mathematical functions such as sin(), cos(), tan(), log(), and many more. random: As its name suggests, this module is used for generating random numbers. It has functions like randint(), randfloat(), and shuffle(). statistics: This module provides statistical functions such as mean(), median(), mode(), and variance(). time: The time module provides various time-related functions like strftime(), strptime(), time() (returns the current time), and many more. datetime: Similar to the time module, this one is used for working with dates and times in Python.

Here are some examples of how you can use these modules:

math

import math

print(math.sin(3.14))  # Output: 0.0015934351123272352

random

import random

print(random.randint(1, 100))  # Output: a random integer between 1 and 100


print(random.uniform(1, 10))  # Output: a random float between 1 and 10

statistics

import statistics

data = [1, 2, 3, 4, 5]


print(statistics.mean(data))  # Output: the mean of the data set

time

import time

current_time = time.time()


print(current_time)  # Output: the current time in seconds since epoch

datetime

from datetime import datetime

now = datetime.now()


print(now)  # Output: the current date and time

These are just a few examples of the many built-in modules available in Python. You can find more information on these modules, as well as other built-in functions, in the official Python documentation.

I hope this helps! Let me know if you have any further questions.

Types of modules in python w3schools with examples

I apologize for the confusion earlier! As per your request, I'll provide information on Python modules along with examples using W3Schools.

Python provides a wide range of built-in and third-party libraries that can be used to perform various tasks. These libraries or modules are collections of related functions, classes, and variables that help simplify coding. Here are some common types of modules in Python:

Built-in Modules: Python comes with several built-in modules that you can use without having to install anything separately. Some examples include: math - provides mathematical functions like sin(), cos(), etc.

time - provides functions to work with time and dates random - generates random numbers

Example:

import math

print(math.sqrt(25))  # Output: 5.0
Standard Library Modules: Python's standard library includes various modules that are useful for everyday programming. Some examples include: os - provides functions to interact with the operating system sys - provides information about the program and its execution environment re - regular expressions

Example:

import os

print(os.getcwd())  # Output: Path of current working directory
External Modules: Python allows you to install third-party modules using pip, which is the package installer for Python. Some examples include: requests - a library for making HTTP requests pandas - a library for data manipulation and analysis

Example:

import requests

response = requests.get("http://www.example.com")


print(response.status_code)  # Output: status code of the request
User-Defined Modules: You can also create your own modules by creating a Python file with related functions, classes, or variables.

Example (my_module.py):

def greet(name):

print(f"Hello {name}!")


def add(a, b):


return a + b


def main():


name = "John"


greeting = greet(name)


print(greeting)


result = add(2, 3)


print(result)


if name == "main":


main()

In this example, we have created a my_module module with three functions: greet, add, and main. We can import and use these functions in another Python file like so:

import my_module

my_module.main()  # Output: Hello John! 5

In conclusion, Python modules provide a wide range of functionalities that help simplify your code. By understanding the different types of modules, you can effectively utilize them to write more efficient and effective code.

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