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Python Libraries to Use in 2023

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Python is a not compilable yet interpretable language. In other words, it is a standard text document before starting it. It supports all languages, and the language itself is logical, straightforward, and brilliantly planned. Developing projects with this language is rapid since it requires significantly less code than other programming languages. One of Python’s advantages is that it’s easy to learn; hence, many beginners are advised to study it. This article will explain Python libraries in 2023 and several language features.

How to use Python?

Python programming works for many industries, namely, web, mobile devices, software, and machine learning projects.

Which significant companies employ Python?

Which significant companies employ Python? Source

Web development

Mainly, you’ll meet Python in web projects as a framework addition like
  • Pyramid;
  • Pylons;
  • TurboGears;
  • Flask;
  • Django.
Particular engines allow running websites on Python. Parsers for collecting data in a network use Python as the basement.


The language can’t compile, yet it helps to create desktop applications like
  1. GIMP – an editor on Linux.
  2. BitTorrent up to the 6th version – then the application went to C++, yet peer-to-peer networks continue to function on Python.

Mobile applications

The applications for mobile devices on Python are not that popular since Android prefers Java, C#, C++, or Kotlin, while iOS – Swift or Objective-C. Python is better for the backend and efficient programming. For instance, Instagram for iOS functions on Objective-C, yet the server is on Python.


Numerous video games on PC use Python partially or completely. Some believe that the language is not suitable for significant projects. Still, the following projects use it:
  • Battlefield 2;
  • World of Tanks;
  • Civilization IV.
Even though Python can help to develop the user interface and graphs, it’s more frequently seen in scripts. For instance, to provide integration with game characters, launch particular scenes, or manage events.

Integrated system

Integrated systems for many devices are created with Python. Raspberry Pi adopted the language, and several banks use it for control and ATM management. Many running projects use Python:
  • The owl Embedded Python System;
  • Python Embedded Tools;
  • Embedded Python.
The language functions for CPUs, autoregulation devices (temperature, pressure, etc.), and communication equipment.

Creating scripts

Python is excellent for scripts and plugins for running applications. The programming language helps to create additional modules easily and build the game logic process. The scripts integrate with applications in other languages that help to automatize defined functions.

Python employment industries

Python can be employed in everything from system administration to Data Science.

Four best sectors of Python usage.

Four best sectors of Python usage. Source

System Administration

System administrators use Python to automatize functions and tasks. The main features are simplicity, power, and supporting packages that increase efficiency. The other essential element is that the language is installed on Linux servers by default.

Python is easy to read, which helps to find vulnerabilities. Formatting is also a part of the syntax.

Science research

The programming language has a range of libraries for computing and research. The primary libraries for this industry are
  1. SciPy; includes science instruments.
  2. NumPy – an addition that supports matrices, multidimensional arrays, and mathematical functionality to work.
  3. Matplotlib for 2D and 3D graphics.
With the help of libraries and the ease of learning the language, many scientists use Python, especially when it comes to mathematicians or physicists.

Data Science

Python is the most common language in Data Science. It helps to run algorithms for applications on machine learning and analytical software. Furthermore, the developers use Python for cloud storage and their servicing. Python facilitates the information in the network, while Google Python helps to do website indexation.

Companies that employ Python

Python is common for startups, yet several companies use it for their considerable projects. Indeed, several are worth mentioning:
  1. Alphabet – language is used for scraping in the Google search engine and under the YouTube service.
  2. BitTorrent – a peer-to-peer network is implemented.
  3. U.S. National Security Agency – the language is used for analytical intelligence and information encryption.
  4. Maya – works with animation.
  5. Pixar, Industrial Light & Magic – work with animated videos.
  6. Intel, Cisco, HP, Seagate, Qualcomm, and IBM – use the language for testing.
  7. JPMorgan Chase, UBS, Getco, and Citadel – Python helps drive financial market forecasting.
  8. NASA, Los Alamos, Fermilab, and JPL – do scientific research.
  9. iRobot – create robotic devices on a commercial scale.
TOP companies that use Python Instagram, Facebook, Yahoo, Dropbox, Pinterest, and other applications use Python.

Python disadvantages

Despite many advantages of this programming language, it has several drawbacks. The primary ones are the following:
  1. Python software is considered slow. For instance, iOS software on Swift functions 9-fold faster. Pythons are not advisable for projects that require numerous memory. Still, C and C++ come to help.
  2. Dependable on system libraries. It complicates the data transfer to other systems. Virtualenv helps with the transfer, yet it also has disadvantages.
  3. Global Interpreter Lock (GIL) doesn’t allow processing of several streams in CPython, yet GIL can be turned off.
Understanding the primary functions of Python language and the employment industries allows us to start exploring the best libraries to use in 2023.

Top best libraries for Python in 2023.

A library is a complete set of functions that helps developers avoid writing Python code from scratch. Currently, there are about 137 thousand libraries, and each has a vital role in data processing, images, visualization, machine learning, etc.

Best Python libraries in 2023 and industries of employment


It is a library for data science. It has 1,500 contributors and 35,000 comments and is common in data science. TensorFlow is a framework that allows you to run and define computation. TensorFlow is an AI library that allows you to deploy large-scale neural networks in multiple layers by applying information flow graphs. With TensorFlow, it is easier to develop deep learning models, it is possible to promote ML / AI technologies, and it is much easier to create and run ML-based applications.

A library for machine learning.

A library for machine learning. Source
The most advanced websites that use the TensorFlow library are owned by the following giant corporations:
  • Google;
  • Coca-Cola;
  • Airbnb;
  • Twitter;
  • Intel.
The library is highly efficient for perception, understanding, classification, and data forecasting. The primary functions are
  1. Greater frequency of new releases, providing users with the latest features and versions of the library.
  2. Reduction of errors by up to 60% when working with machine learning neurons.
  3. The possibility of parallel computing will be needed when working with complex models.
  4. The improved visual design of the computational graph.
  5. Excellent control with the help of Google.
TensorFlow offers the following advantages:
  1. Fast updates and stable operation.
  2. Running part of the graph in TensorFlow, which is excellent as a debugging tool.
  3. Visualization of computational data at a high level.
The library creates text applications, finds videos, identifies images and speech, and analyzes time series. With the library, you can analyze sentiment, which is helpful for CRM or CX.


Without mentioning Pandas, a list of the best Python libraries for 2023 would not be complete. Pandas is a fast, powerful, flexible, and easy-to-use tool based on the website to help you analyze and process information.

Pandas’ employment in the real world

Pandas’ employment in the real world. Source

Data can be analyzed with a sheet and a pen if it is small information. But significant amounts will require technical tools, and Pandas Python is the best library for processing, with high-level structures. Pandas is open-source, giving you highly efficient tools for working with Python data.

The library is ideal for fast and easy data processing, aggregation, reading, and visualization.

Data is taken in CSV or TSV file form or as an SQL database; then, a data frame is created. It is similar to a regular statistical table in Excel or SPSS.

The key features of this library:

  1. Indexing, renaming, sorting, and merging the information frame.
  2. Updating, adding, and removing columns from the frame.
  3. Restoring files that are insufficient and processing missing information.
  4. Constructing a histogram, a rectangular chart.
  5. Marking rows and tables for automatic alignment and indexing information.
Pandas advantages:
  1. Users get numerous commands for fast analytics.
  2. The simplicity of information presentation improves methods of data analysis and perception.
  3. Any task is accomplished with just a few lines of code.
The library is suitable for work in the commercial or academic industry, including neuroscience, statistics, and finance. All the features described above make Pandas a fundamental library for Data Science. Professionals can use additional packages for this library, like Geopandas and PandaSQL. The former helps to work with maps and other geospatial materials, while PandaSQL helps to write SQL for DataFrame.

Numerical Python (NumPy)

It’s an excellent tool for scientific computing. NumPy helps with basic and extensive array tasks. The library has numerous functions for n-arrays and Python matrices. It allows working with bases that store single-type units, facilitating mathematical operations. Vectorization over an array with NumPy increases productivity and reduces execution time.

NumPy is your first step to data science with Python. Source

NumPy is your first step to data science with Python. Source
NumPy is a basic package in Python, and the key features are:
  1. Stable operation and integration with languages that are already obsolete in developer circles.
  2. Multidimensional array, performing mathematical actions based on a vector.
  3. Developers get many tools to write, read a lot of information from disk.
  4. Fourier transform capability, random number generation.
  5. I/O support for displaying files in memory.
The library’s advantages are:
  1. Providing efficient and scalable storage of information.
  2. Improved data management for arithmetic calculations.
  3. A large set of methods, functions, and variables to simplify your work.
The primary employment area is data analysis and powerful N-dimensional arrays. NumPy is fundamental for other libraries, including Scikit-learn and SciPy.


PyTorch is another library for data processing. It is a Python-based research package that uses the power of GPUs. PyTorch is also considered a great research platform for deep learning. The library was created to provide better speed and flexibility.

PyTorch workflow basics for deep learning

PyTorch workflow basics for deep learning. Source
The main characteristics include:
  1. Advanced major cloud service support.
  2. TorchScript provides swift mode changing.
  3. The ecosystem is reliable and guarantees flexibility for the library.
PyTorch advantages:
  1. Easy to study and code.
  2. It supports a computing graph during task execution.
  3. GPU and CPU support.
  4. The libraries provide an extensive set of powerful API.
  5. The debugging is easy with Python IDE and other instruments.

SciPy Python

SciPy's library grounds on NumPy and includes the following instruments:
  • Matplotlib;
  • Pandas;
  • SymPy.
SciPy's library includes modules that perfectly work with mathematical tasks, namely:
  • Linear algebra;
  • Interpolation;
  • Optimization;
  • Integration;
  • Statistics.
Primary functions:
  1. Set of functional features based on Python NumPy extensions.
  2. Working with multidimensional images through a submodule (SciPy.ndimage).
  3. Built-in functions for working with differential equations.
  4. Calculations: mathematical, scientific, engineering.
  5. Numerical integration and optimization processes.
  6. Function integral calculations.
  7. Genetic algorithms.
  8. Differential equations.
The library helps with parallel programming through unique web processes and procedures.

SciPy's library main page

SciPy's library main page. Source 

The main functioning ground on NumPy and its arrays; they are used for the basic data structure. The library is open-source and free, and the community is active.


FastAPI is a framework for creating an API on Python. It is perfect for those who develop the server part of an application and want to use Flask or Django. FastAPI helps to create productive APIs fast and easily. A significant advantage is that it’s effortless to learn. The library has one of the best-in-class documentations. The current package comes with OpenAPI documents by default. The productivity is high.


PySpark is a unique environment for Apache Spark. You can use the library to do work processing large amounts of data. Spark helps extend the DataFrame model to resemble Pandas in a sense, but it has the scalability of distributed computing.
PySpark has been used extensively recently in big data processing and Hadoop. The package helps Python developers get all the perks of Spark without the need to learn a new programming language, namely Scala.
Recently, the Pandas APIs have been introduced, allowing developers to start working almost without knowing new material if they have already used the Pandas package.


This package gives you the ability to send HTTP requests quickly and easily using the Python language, whether you need parsing on the network or are accessing third-party services in your application. It is possible to get help with this library. The main task of the package is to make HTTP-requests more convenient for people and the creators managed to achieve this goal.

In many situations, requests help to get the necessary data through 1 line of code. The simplicity of the library distinguishes it from others, for example, urllib and http. It can be used as the first method of interaction with HTTP requests in Python.

Re (Python Regex)

Although the library seems problematic to many engineers, it is handy for extracting information from text blocks. Through Python Regex it is possible to analyze large arrays of textual information to find specific patterns. Once they are matched, RE returns the desired text. The main drawback of the module is the strange form of syntax.


With this library one can work on visualization and make complete stories with data. It is derived from SciPy stack and helps to build 2D models. Matplotlib provides API for integrated charts in applications. It’s pretty similar to MATLAB.

Data visualization on Python with Matplotlib

Data visualization on Python with Matplotlib. Source
Matplotlib is good to use for a wide range of visualization purposes:
  • histograms;
  • Diagrams of various types;
  • contour charts;
  • vector fields;
  • spectrograms.
The library makes working with labels, grids, and other formatting elements easier. Suitable for those who need a wide functionality for drawing.


This information visualization library on Matplotlib has a high-level interface for beautiful and informative charts. In other words, the library is an extension for Matplotlib with several additional functions.

Let’s explain the difference between these two libraries. Matplotlib is more common for column, point, pie, and other types of diagrams, and Seaborn provides users with more visualization templates with fewer syntax rules and they are simpler than in Matplotlib.

Beautiful charts with Seaborn on Python

Beautiful charts with Seaborn on Python
Primary Seaborn functions
  1. Defining relationships between different variables.
  2. Maintaining qualitative variables for aggregated information.
  3. Analyzing univariate and bivariate distributions and comparing them to more data.
  4. Forming a linear regression model for dependent variables.
  5. Multi-level abstraction and multivariate meshes.
Seaborn is perfect for R visualization, including corrplot and ggplot.

Scikit Learn

Google Summer of Code project, a reliable library on Python for machine learninga. It has the following ML algorithms:
  • SVM;
  • Random forests;
  • K-means clustering;
  • Spectral clustering;
  • Shift in the mean value.
 Scikit-learn in machine learning
Scikit-learn in machine learning. Source
The library provides several supervised and unsupervised learning algorithms using a consistent interface in Python. Among the features of the package, we will highlight
  1. Data classification with image detection and spam detection.
  2. Clustering.
  3. Customer segmentation and grouping of specific results.
  4. Visualization.
  5. Extensive options for setting parameters that allow for high accuracy.
  6. Preparation of incoming information in text format for further processing through machine learning algorithms.
Scikit Learn primarily focuses on information modeling and excepting manipulations.


The library is suitable for neural network code development and training. Coding for deep learning is simplified and much easier to do. Users use the library to model statistical data, process images, and work with text materials. Keras refers to the neural network library for Python. The goal of the package is to make the programming language more user-friendly and componentized than TensorFlow. Main features:
  1. Definition of accuracy in percent.
  2. Ability to define losses.
  3. Creation of a custom feature layer.
  4. Tools for analysis and work with images.


It’s a versatile package for Python that helps to use straightforward computing for statistics and model evaluations. Statsmodels will help to do:
  1. Linear regression;
  2. Correlation;
  3. Survival analysis;
  4. General linear models;
  5. One- and two-factor analysis with hypothesis testing.


A classic graphics package where users can import, copy, and transfer information for analysis and visualization. There is an isolated version to run Python with limited functionality.

Visualization with Plotly.

Visualization with Plotly. Source
It is recommended to use the library to develop, display figures, update them, and display expanded information when hovering over the text. In addition, developers are given the function of sending data to cloud servers. Among the graphs, Plotly offers a wide range of choices for plotting:
  1. Basic charts from the usual line and pie charts to Gantt charts, Sunburst charts, Sankey charts, etc.
  2. Statistical styles, including errors, histograms, Facet and Trellis, and trend lines.
  3. Full science charts in the form of logarithmic charts, vector fields, heat maps, etc.
  4. Financial charts.
These are the main functions, and there are many more.

To conclude, here are four bonus libraries' descriptions for 2023.

  1. SpaCy. Open source, suitable for advanced NLP for Python and Cython.
  2. Bokeh. Creates interactive visualization of information, allowing you to quickly build complex graphs by applying simple commands. There is support for HTML, notepad, or server output. In addition, engineers can implement visualization in Flask and Django.
  3. Gensim. Provides automatic extraction of semantic topics from files. They are characterized by ease of operation and high efficiency. Algorithms cannot be controlled, so human input is not needed.
  4. NLTK (Natural Language Toolkit). Works only with human language. The library includes text processing functions for parsing, classification, tokenization, and other actions afterward.
The article briefly illustrates the best and most popular Python libraries in 2023. They will help with data, science, and other industries. The developers can achieve tasks more efficiently with these libraries (math, intellectual analysis, machine learning, visualization, etc.). In the recent ten years, Python has become a worldwide famous programming language. It has a straightforward syntax and numerous packages available. The libraries bring the utmost use to the language and significantly increase the developers’ productivity. Even though it may be hard to start with something, the article is aimed at helping you to make the right choice.

Python Libraries to Use in 2023 key takeaways:
  1. How to use Python?
  2. Web development
  3. Software
  4. Mobile applications
  5. Games
  6. Integrated system
  7. Creating scripts
  8. Python employment industries
  9. System Administration
  10. Science research
  11. Data Science
  12. Companies that employ Python
  13. Python disadvantages
  14. Top best libraries for Python in 2023.
  15. TensorFlow
  16. Pandas
  17. Numerical Python (NumPy)
  18. PyTorch
  19. SciPy Python
  20. FastAPI
  21. PySpark
  22. Requests
  23. Re (Python Regex)
  24. Matplotlib
  25. Seaborn
  26. Scikit Learn
  27. Keras
  28. Statsmodels
  29. Plotly
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Alexander Safonov
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