{"id":165447,"date":"2026-02-19T15:04:09","date_gmt":"2026-02-19T14:04:09","guid":{"rendered":"https:\/\/liora.io\/en\/?p=165447"},"modified":"2026-08-06T14:23:44","modified_gmt":"2026-08-06T13:23:44","slug":"python-the-most-popular-programming-language","status":"publish","type":"post","link":"https:\/\/liora.io\/en\/python-the-most-popular-programming-language","title":{"rendered":"Python : Focus on the most popular programming language"},"content":{"rendered":"\n<p><strong>Python is the most popular and widely used programming language, particularly in the fields of data science and machine learning. Learn everything you need to know about it: definition, how it works, use cases, advantages, training&#8230;<\/strong><\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-is-python-used-for\">What is Python used for ?<\/h2>\n\n\n\n<p><strong>One of the main use cases of Python is <strong>scripting and automation<\/strong>. This language can, for example, replace shell scripts, but also automate interactions with web browsers or the graphical interfaces of applications.<\/strong><\/p>\n\n\n\n<p>It also allows <strong>system provisioning or configuration<\/strong> through tools such as Ansible or Salt. However, this is far from being its only applications.<\/p>\n\n\n\n<p>Another use is <strong>application programming<\/strong>. It is possible to create all kinds of applications using this language. Although it does not allow generating standard binaries from a script, third-party packages such as cx freeze and PyInstaller compensate for this weakness.<\/p>\n\n\n\n<p>In addition, Python is the most used language for <strong>Data Science and machine learning<\/strong>. The vast majority of libraries used for these two data analysis disciplines have Python interfaces. This explains its popularity as a high-level command interface for machine learning libraries and other numerical algorithms.<\/p>\n\n\n\n<p>This language is also used for <strong>creating web services<\/strong> and <strong>RESTful APIs<\/strong>. Its various native libraries and third-party web frameworks allow programming data-driven websites with just a few lines of code. Another use case is <strong>metaprogramming<\/strong> and code generation. Every element of this language is an object, including modules and libraries.<\/p>\n\n\n\n<p>This makes Python a very efficient code generator. It is possible to <strong>write applications<\/strong> manipulating their own functions, much more extensible than with other languages. It is also possible to use it to<strong> direct code generation systems<\/strong> such as LLVM to create code in other languages.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\" style=\"margin-top:32px;margin-bottom:32px\"><div class=\"wp-block-embed__wrapper\" style=\"position:relative;width:100%;padding-top:56.25%;overflow:hidden\"><iframe loading=\"lazy\" title=\"YouTube video J0Aq44Pze-w\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/J0Aq44Pze-w?rel=0\" style=\"position:absolute;inset:0;width:100%;height:100%;border:0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"who-is-using-python\">Who is using Python ?<\/h2>\n\n\n\n<figure class=\"wp-block-image size-full\" style=\"margin-top:32px;margin-bottom:32px\"><img alt=\"Illustration for Who is using Python ?\" decoding=\"async\" height=\"534\" loading=\"lazy\" src=\"https:\/\/liora.io\/app\/uploads\/sites\/9\/2025\/04\/ChatGPT-Image-24-avr.-2025-10_09_36-1024x683.png\" style=\"width:100%;height:auto\" width=\"800\"\/><\/figure>\n\n\n\n<p>Python is increasingly used in the field of programming, for two reasons. Firstly, as previously mentioned, it is one of the most versatile and general-purpose languages.<\/p>\n\n\n\n<p>Furthermore, despite its versatility, Python remains <strong>one of the easiest programming<\/strong> <strong>languages<\/strong> to learn. This is because its syntax is similar to English. This allows beginners to understand it easily and therefore start learning it <strong>very easily<\/strong>.<\/p>\n\n\n\n<p>Despite its simplicity, Python can be used for the most complex projects. For example, it is used in the field of AI and machine learning.<\/p>\n\n\n\n<p>Therefore, this language is used by a wide variety of profiles. Examples include beginner programmers, web and mobile application developers, software engineers, and data scientists and other data professionals.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"what-are-the-advantages-of-python\">What are the advantages of Python ?<\/h2>\n\n\n\n<p>Python has many strengths. Due to its minimalism, it takes very little time to start using it. Its syntax is designed to be <strong>readable and straightforward<\/strong>. Beginners can easily learn to master it. As a result, developers spend more time trying to solve problems than dealing with language complexities.<\/p>\n\n\n\n<p>Another advantage is <strong>Python&#8217;s popularity<\/strong>. Widely used, this language is supported by most OSs, and there are a large number of compatible libraries and service APIs.<\/p>\n\n\n\n<p>Despite its ease of use, this language can be used for both scripting and automation as well as for the development of professional-quality software. It is therefore <strong>extremely versatile<\/strong>.<\/p>\n\n\n\n<p>Furthermore, each update to Python adds very useful new features that keep it aligned with modern development practices. As a result, it does not become obsolete.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\" style=\"margin-top:32px;margin-bottom:32px\"><div class=\"wp-block-embed__wrapper\" style=\"position:relative;width:100%;padding-top:56.25%;overflow:hidden\"><iframe loading=\"lazy\" title=\"YouTube video T5pRlIbr6gg\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/T5pRlIbr6gg?rel=0\" style=\"position:absolute;inset:0;width:100%;height:100%;border:0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"weaknesses-of-python\">Weaknesses of Python<\/h2>\n\n\n\n<p>Despite its many strengths, Python is <strong>not suitable for all tasks<\/strong>. It is a &#8220;high-level&#8221; language. Therefore, it is not suitable for system-level programming.<\/p>\n\n\n\n<p>It is also not ideal for situations requiring <strong>cross-platform independent binaries<\/strong>. An independent application for Windows, macOS, and Linux will not be easy to code in Python.<\/p>\n\n\n\n<p>Finally, it is best to avoid Python in situations where speed is an <strong>absolute priority <\/strong>for the application. It is better to turn to C and C++ or other languages of the same caliber. Each function and module are considered objects by Python. This simplifies the writing of high-level code, but reduces speed.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex is-content-justification-center wp-container-core-buttons-is-layout-5ee10de4\" style=\"margin-top:32px;margin-bottom:32px\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"\/en\/courses\/data-ai\/data-scientist\">Explore our Data Scientist course<\/a><\/div><\/div>\n\n\n\n<p>The dynamism and malleability of objects make optimization difficult, even after compilation. As a result, Python is <strong>significantly slower<\/strong> than C\/C++ or Java. However, it is possible to accelerate mathematical and statistical operations using libraries such as <strong>NumPy<\/strong> and <strong>Pandas<\/strong>.<\/p>\n\n\n\n<p>In addition, Python uses a lot of whitespace. This is sometimes considered an advantage, but also a disadvantage. Some reject this language because of this point, but it actually <strong>makes the syntax<\/strong> more readable.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"differences-between-python-2-and-python-3\">Differences between Python 2 and Python 3<\/h2>\n\n\n\n<p>Two different versions of Python are available. The older version, Python 2, is still widely used even though it has not received official updates since 2020.<\/p>\n\n\n\n<p>The current version, Python 3, brings important and <strong>practical new features.<\/strong> These include new syntax features, better concurrency controls, and a more efficient interpreter.<\/p>\n\n\n\n<p>The adoption of Python 3 has been slowed by the lack of compatibility with third-party libraries. Many of them are only supported by Python 2. It has therefore been difficult to make the transition. This problem has been resolved in recent years, and <strong>Python 3 is now the best choice for new projects<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\" style=\"margin-top:32px;margin-bottom:32px\"><div class=\"wp-block-embed__wrapper\" style=\"position:relative;width:100%;padding-top:56.25%;overflow:hidden\"><iframe loading=\"lazy\" title=\"YouTube video oVp1vrfL_w4\" width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/oVp1vrfL_w4?rel=0\" style=\"position:absolute;inset:0;width:100%;height:100%;border:0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe><\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"python-libraries\">Python libraries<\/h2>\n\n\n\n<p>Python libraries are one of the main reasons for its success. This is a vast ecosystem of <strong>third-party software<\/strong>. This collection has grown and expanded over the decades. Several standard libraries are offered, offering modules adapted to the most common programming tasks: networking, asynchronous operation, threading, access to files, etc.<\/p>\n\n\n\n<p>Some modules also allow you to <strong>manage high-level programming tasks<\/strong> needed for modern applications. This can include reading and writing structured file formats such as JSON and XML, manipulating compressed files, or working with protocols and web data formats.<\/p>\n\n\n\n<p>The default Python distribution also offers a <strong>cross-platform GUI library<\/strong> with Tkinter, and an <strong>integrated copy<\/strong> of the SQLite 3 database. In addition to these native libraries, thousands of third-party libraries are <strong>available through the Python Package Index<\/strong> (PyPI). It is they who offer this language all its versatility.<\/p>\n\n\n\n<p>One example is the <strong>BeautifulSoup<\/strong> library, which provides an <strong>all-in-one tool <\/strong>for HTML scraping. On the other hand, \u201cRequests\u201d makes it easy to work with HTTP requests.<\/p>\n\n\n\n<p>With frameworks like Flask and Django, it is possible to <strong>quickly develop web services<\/strong>. Many cloud services can be managed via the Python object model with Apache Libcloud.<\/p>\n\n\n\n<p>With NumPy, Pandas and Matplotlib, mathematical and statistical operations can be accelerated. They also facilitate the creation of data visualizations.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"how-can-i-learn-python-what-are-the-best-training-programs\">How can I learn Python? What are the best training programs?<\/h2>\n\n\n\n<p>To learn how to use Python, you can consider <a href=\"\/en\/courses\/data-ai\/\">Liora&#8217;s training programs<\/a>. This programming language is at the heart of our various programs: Data Scientist, Data Engineer, Data Analyst&#8230;<\/p>\n\n\n\n<p>Through these different courses, you will not only learn Python, but also all the skills required to work in the field of <a href=\"https:\/\/liora.io\/en\/data-science-definition-issues-and-use-cases\">data science<\/a> and pursue a career in Big Data. In fact, Python is the most widely used language for data science.<\/p>\n\n\n\n<p>All of our training programs adopt an innovative and original <strong>blended learning<\/strong> approach, combining in-person and online learning. They can be completed in a few weeks in an <strong>intensive bootcamp<\/strong> mode or through <strong>continuing education<\/strong>.<\/p>\n\n\n\n<p>Designed by professionals, our programs meet the needs of businesses and allow learners to quickly enter the job market. They also allow you to obtain a diploma <strong>certified by the University of Sorbonne<\/strong>.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex is-content-justification-center wp-container-core-buttons-is-layout-5ee10de4\" style=\"margin-top:32px;margin-bottom:32px\"><div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/liora.io\/en\/courses\/data-ai\/machine-learning-engineer\">Learn to use Python with Liora<\/a><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Python is the most popular and widely used programming language, particularly in the fields of data science and machine learning. Learn everything you need to know about it: definition, how it works, use cases, advantages, training&#8230; What is Python used for ? One of the main use cases of Python is scripting and automation. This [&hellip;]<\/p>\n","protected":false},"author":74,"featured_media":207559,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"_acf_changed":false,"editor_notices":[],"footnotes":""},"categories":[2434],"class_list":["post-165447","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-cloud-dev"],"acf":[],"_links":{"self":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/165447","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/users\/74"}],"replies":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/comments?post=165447"}],"version-history":[{"count":5,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/165447\/revisions"}],"predecessor-version":[{"id":209659,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/posts\/165447\/revisions\/209659"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media\/207559"}],"wp:attachment":[{"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/media?parent=165447"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/liora.io\/en\/wp-json\/wp\/v2\/categories?post=165447"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}