{"id":2544,"date":"2024-03-06T15:31:40","date_gmt":"2024-03-06T07:31:40","guid":{"rendered":"https:\/\/five.co\/?p=2544"},"modified":"2024-03-06T15:35:20","modified_gmt":"2024-03-06T07:35:20","slug":"building-your-first-python-web-app","status":"publish","type":"post","link":"https:\/\/preview-php85.dzine.org\/five\/blog\/building-your-first-python-web-app\/","title":{"rendered":"Building Your First Python Web App: The Definitive Guide"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">How to Develop a Web App in Python<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Whether you are a seasoned developer or a beginner, Python is a versatile and powerful language that can help you create robust web applications. Loved by developers for its clean and simple syntax and powerful data analysis toolkit, Python is one of the <a href=\"https:\/\/survey.stackoverflow.co\/2023\/#technology-most-popular-technologies\" rel=\"nofollow noopener\" target=\"_blank\">world&#8217;s top 5 most popular programming languages<\/a>. Python is also a popular language for building web apps. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">In this blog post, we&#8217;ll guide you through the process of building a web app in Python, step by step. We will use the popular web application framework Flask, which is written in Python.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Free Step-By-Step Web App Development Tutorial<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Follow our FREE code-along tutorial and learn how to rapidly build a full-stack web application on a MySQL database.<\/p>\n\n\n\n<div style=\"background-color: #001524;\"><hr style=\"height: 5px;\">\n<pre style=\"text-align: center; overflow: hidden; white-space: pre-line;\"><span style=\"color: #f1ebda; background-color: #4588d8; font-size: calc(18px + 0.390625vw);\"><strong>Code Along: Rapid Web App Development<\/strong><br><span style=\"font-size: 14pt;\">Follow our FREE step-by-step code-along tutorial<\/span><\/span><\/pre>\n<p style=\"text-align: center;\"><a href=\"https:\/\/preview-php85.dzine.org\/five\/code-along\/acs-masterclass\" target=\"_blank\" rel=\"noopener\"><button style=\"background-color: #f8b92b; border: none; color: black; padding: 20px; text-align: center; text-decoration: none; display: inline-block; font-size: 18px; cursor: pointer; margin: 4px 2px; border-radius: 5px;\"><strong>Learn More<\/strong><\/button><br><\/a><\/p>\n<hr style=\"height: 5px;\"><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n<div class=\"root-eb-toc-fb61o8q wp-block-essential-blocks-table-of-contents\"><div class=\"eb-parent-wrapper eb-parent-eb-toc-fb61o8q \"><div class=\"eb-toc-container eb-toc-fb61o8q  eb-toc-is-not-sticky eb-toc-not-collapsible eb-toc-initially-not-collapsed eb-toc-scrollToTop style-1 list-style-none\" data-scroll-top=\"false\" data-scroll-top-icon=\"fas fa-angle-up\" data-collapsible=\"false\" data-sticky-hide-mobile=\"false\" data-sticky=\"false\" data-scroll-target=\"scroll_to_toc\" data-copy-link=\"false\" data-editor-type=\"\" data-hide-desktop=\"false\" data-hide-tab=\"false\" data-hide-mobile=\"false\" data-itemcollapsed=\"false\" data-highlight-scroll=\"false\"><div class=\"eb-toc-header\"><h2 class=\"eb-toc-title\">Table of Contents<\/h2><\/div><div class=\"eb-toc-wrapper \" data-headers=\"[{&quot;level&quot;:2,&quot;content&quot;:&quot;How to Develop a Web App in Python&quot;,&quot;text&quot;:&quot;How to Develop a Web App in Python&quot;,&quot;link&quot;:&quot;how-to-develop-a-web-app-in-python&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Free Step-By-Step Web App Development Tutorial&quot;,&quot;text&quot;:&quot;Free Step-By-Step Web App Development Tutorial&quot;,&quot;link&quot;:&quot;free-step-by-step-web-app-development-tutorial&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Understanding Python: A Developer\\u2019s Paradise&quot;,&quot;text&quot;:&quot;Understanding Python: A Developer\\u2019s Paradise&quot;,&quot;link&quot;:&quot;understanding-python-a-developers-paradise&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;Why Choose Python For Web Development?&quot;,&quot;text&quot;:&quot;Why Choose Python For Web Development?&quot;,&quot;link&quot;:&quot;why-choose-python-for-web-development&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Getting Started: Python Web App Development Essentials&quot;,&quot;text&quot;:&quot;Getting Started: Python Web App Development Essentials&quot;,&quot;link&quot;:&quot;getting-started-python-web-app-development-essentials&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Building a Python Web App: The Process&quot;,&quot;text&quot;:&quot;Building a Python Web App: The Process&quot;,&quot;link&quot;:&quot;building-a-python-web-app-the-process&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;1. Setting Up Your Environment&quot;,&quot;text&quot;:&quot;1. Setting Up Your Environment&quot;,&quot;link&quot;:&quot;1-setting-up-your-environment&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;2. Creating Your First Flask App&quot;,&quot;text&quot;:&quot;2. Creating Your First Flask App&quot;,&quot;link&quot;:&quot;2-creating-your-first-flask-app&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;3. Understanding The Flask App Structure&quot;,&quot;text&quot;:&quot;3. Understanding The Flask App Structure&quot;,&quot;link&quot;:&quot;3-understanding-the-flask-app-structure&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;4. Running Your Flask App&quot;,&quot;text&quot;:&quot;4. Running Your Flask App&quot;,&quot;link&quot;:&quot;4-running-your-flask-app&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;5. Expanding Your App&quot;,&quot;text&quot;:&quot;5. Expanding Your App&quot;,&quot;link&quot;:&quot;5-expanding-your-app&quot;},{&quot;level&quot;:3,&quot;content&quot;:&quot;6. Useful Flask Methods &amp; Extensions&quot;,&quot;text&quot;:&quot;6. Useful Flask Methods &amp; Extensions&quot;,&quot;link&quot;:&quot;6-useful-flask-methods-extensions&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;Summary: Using Python for Web Development&quot;,&quot;text&quot;:&quot;Summary: Using Python for Web Development&quot;,&quot;link&quot;:&quot;summary-using-python-for-web-development&quot;},{&quot;level&quot;:2,&quot;content&quot;:&quot;30-Minute Code Along Tutorial: Develop a Full-Stack Web App&quot;,&quot;text&quot;:&quot;30-Minute Code Along Tutorial: Develop a Full-Stack Web App&quot;,&quot;link&quot;:&quot;30-minute-code-along-tutorial-develop-a-full-stack-web-app&quot;}]\" data-visible=\"[true,true,true,true,true,true]\" data-delete-headers=\"[{&quot;label&quot;:&quot;How to Develop a Web App in Python&quot;,&quot;value&quot;:&quot;how-to-develop-a-web-app-in-python&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;Free Step-By-Step Web App Development Tutorial&quot;,&quot;value&quot;:&quot;free-step-by-step-web-app-development-tutorial&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;Understanding Python: A Developer\\u2019s Paradise&quot;,&quot;value&quot;:&quot;understanding-python-a-developers-paradise&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;Why Choose Python For Web Development?&quot;,&quot;value&quot;:&quot;why-choose-python-for-web-development&quot;,&quot;isDelete&quot;:true},{&quot;label&quot;:&quot;Getting Started: Python Web App Development Essentials&quot;,&quot;value&quot;:&quot;getting-started-python-web-app-development-essentials&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Building a Python Web App: The Process&quot;,&quot;value&quot;:&quot;building-a-python-web-app-the-process&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;1. Setting Up Your Environment&quot;,&quot;value&quot;:&quot;1-setting-up-your-environment&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;2. Creating Your First Flask App&quot;,&quot;value&quot;:&quot;2-creating-your-first-flask-app&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;3. Understanding The Flask App Structure&quot;,&quot;value&quot;:&quot;3-understanding-the-flask-app-structure&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;4. Running Your Flask App&quot;,&quot;value&quot;:&quot;4-running-your-flask-app&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;5. Expanding Your App&quot;,&quot;value&quot;:&quot;5-expanding-your-app&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;6. Useful Flask Methods &amp; Extensions&quot;,&quot;value&quot;:&quot;6-useful-flask-methods-extensions&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;Summary: Using Python for Web Development&quot;,&quot;value&quot;:&quot;summary-using-python-for-web-development&quot;,&quot;isDelete&quot;:false},{&quot;label&quot;:&quot;30-Minute Code Along Tutorial: Develop a Full-Stack Web App&quot;,&quot;value&quot;:&quot;30-minute-code-along-tutorial-develop-a-full-stack-web-app&quot;,&quot;isDelete&quot;:false}]\" data-smooth=\"true\" data-top-offset=\"\"><div class=\"eb-toc__list-wrap\"><ul class=\"eb-toc__list\"><li><a href=\"#getting-started-python-web-app-development-essentials\">Getting Started: Python Web App Development Essentials<\/a><li><a href=\"#building-a-python-web-app-the-process\">Building a Python Web App: The Process<\/a><ul class=\"eb-toc__list\"><li><a href=\"#1-setting-up-your-environment\">1. Setting Up Your Environment<\/a><li><a href=\"#2-creating-your-first-flask-app\">2. Creating Your First Flask App<\/a><li><a href=\"#3-understanding-the-flask-app-structure\">3. Understanding The Flask App Structure<\/a><li><a href=\"#4-running-your-flask-app\">4. Running Your Flask App<\/a><li><a href=\"#5-expanding-your-app\">5. Expanding Your App<\/a><li><a href=\"#6-useful-flask-methods-extensions\">6. Useful Flask Methods &amp; Extensions<\/a><\/li><\/ul><li><a href=\"#summary-using-python-for-web-development\">Summary: Using Python for Web Development<\/a><li><a href=\"#30-minute-code-along-tutorial-develop-a-full-stack-web-app\">30-Minute Code Along Tutorial: Develop a Full-Stack Web App<\/a><\/ul><\/div><\/div><\/div><\/div><\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Understanding Python: A Developer\u2019s Paradise<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Python is a high-level programming language renowned for its readability and simplicity. It provides a vast library of modules and packages, making the process of application development more efficient and straightforward. Despite its ease of use, Python is potent, powering many popular web applications such as Instagram, YouTube, and Reddit.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Why Choose Python For Web Development?<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Python is a developer&#8217;s dream for several reasons. Its simplicity allows for quick learning and coding, making it an excellent choice for startups and prototype development. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Python&#8217;s extensive libraries and frameworks, such as Django and Flask, streamline the web development process, while its scalability ensures your web app can grow with your user base.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Unlike Django, which distinguishes itself by embodying the principles of \u201cbatteries included\u201d, meaning it comes with a lot of out-of-the-box functionality, Flask is considered a lightweight or microframework that lets you develop a web application easily and with minimal learning. Flask also makes it very easy to develop on our own computer, with little additional setup required.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For a more general background on frameworks, what they are and how they help developers, <a href=\"https:\/\/preview-php85.dzine.org\/five\/blog\/the-5-best-web-frameworks\/\">visit our article on the 5 best web frameworks<\/a> here.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Getting Started: Python Web App Development Essentials<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Before delving into the Python web app development process, ensure you have the necessary tools:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Python<\/strong>: Download and install the latest version of Python from the official website.<\/li>\n\n\n\n<li><strong>Text Editor<\/strong>: Choose a text editor suitable for coding, like Sublime Text or Atom.<\/li>\n\n\n\n<li><strong>Flask<\/strong>: This micro web framework does not require particular tools or libraries, making it perfect for small-scale web apps.<\/li>\n<\/ol>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Building a Python Web App: The Process<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Now that we&#8217;ve gathered our tools let&#8217;s dive into building a web application using Python and Flask.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Setting Up Your Environment<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">First, set up a dedicated folder for your project on your computer. Once that&#8217;s done, install Flask using pip \u2013 Python&#8217;s package installer. Open your command prompt, navigate to your project folder, and type <code>pip install flask<\/code>.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">2. Creating Your First Flask App<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In your project folder, create a new Python file \u2013 let&#8217;s call it <code>main.py<\/code>. Open this file in your text editor and write the following code to create a basic Flask web app:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282c34\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"from flask import Flask\n\napp = Flask(__name__)\n\n@app.route('\/')\ndef home():\n    return &quot;Hello, World!&quot;\n\nif __name__ == '__main__':\n    app.run(debug=True)\" style=\"color:#abb2bf;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki one-dark-pro\" style=\"background-color: #282c34\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #C678DD\">from<\/span><span style=\"color: #ABB2BF\"> flask <\/span><span style=\"color: #C678DD\">import<\/span><span style=\"color: #ABB2BF\"> Flask<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #ABB2BF\">app <\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #61AFEF\">Flask<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75\">__name__<\/span><span style=\"color: #ABB2BF\">)<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #61AFEF\">@app<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #61AFEF\">route<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">&#39;\/&#39;<\/span><span style=\"color: #ABB2BF\">)<\/span><\/span>\n<span class=\"line\"><span style=\"color: #C678DD\">def<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #61AFEF\">home<\/span><span style=\"color: #ABB2BF\">():<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #C678DD\">return<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">&quot;Hello, World!&quot;<\/span><\/span>\n<span class=\"line\"><\/span>\n<span class=\"line\"><span style=\"color: #C678DD\">if<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #E06C75\">__name__<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #56B6C2\">==<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">&#39;__main__&#39;<\/span><span style=\"color: #ABB2BF\">:<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ABB2BF\">    app.<\/span><span style=\"color: #61AFEF\">run<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #E06C75; font-style: italic\">debug<\/span><span style=\"color: #56B6C2\">=<\/span><span style=\"color: #D19A66\">True<\/span><span style=\"color: #ABB2BF\">)<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p class=\"wp-block-paragraph\"><em>EXPERT TIP: <\/em>Do not call your application<code> flask.py<\/code>. This is a reserved word and would conflict with Flask itself.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">3. Understanding The Flask App Structure<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">In the code above, when you run this script, it will start a Flask development server, and when you visit the root URL (<code>http:\/\/127.0.0.1:5000\/<\/code> by default) in your browser, you will see &#8220;Hello, World!&#8221; displayed. To do so, we first import the Flask module and create a Flask web server from the Flask module. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><code>@app.route('\/')<\/code> is a Python decorator that Flask provides to assign URLs in our app to functions easily. The <code>'\/'<\/code> URL is the default URL for our web server and loads the function just below it when the server is run.<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">4. Running Your Flask App<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">To run your app, navigate to your project folder in the command prompt and type <code>python main.py<\/code>. Open your web browser and enter <code>localhost:5000<\/code> in the address bar. You should see &#8220;Hello, World!&#8221; displayed.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img width=\"539\" height=\"387\" src=\"https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/image-1.png\" alt=\"Five.Co - Hello World Python Web App\" class=\"wp-image-2545\" srcset=\"https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/image-1.png 539w, https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/image-1-300x215.png 300w\" sizes=\"(max-width: 539px) 100vw, 539px\" \/><figcaption class=\"wp-element-caption\"><em>Source: <a href=\"https:\/\/opentechschool.github.io\/python-flask\/core\/hello-world.html\" rel=\"nofollow noopener\" target=\"_blank\">OpenTechSchool \u2013 Hello World<\/a><\/em><\/figcaption><\/figure>\n<\/div>\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">5. Expanding Your App<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">To create more pages for your web app, use the <code>@app.route()<\/code> decorator with different URLs. For example, to create an &#8220;About&#8221; page, you might add the following code:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#282c34\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" data-code=\"@app.route('\/about')\u00a0\u00a0\n  def about():\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\n    return &quot;About Us Page!&quot;\u00a0\u00a0\" style=\"color:#abb2bf;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki one-dark-pro\" style=\"background-color: #282c34\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #61AFEF\">@app<\/span><span style=\"color: #ABB2BF\">.<\/span><span style=\"color: #61AFEF\">route<\/span><span style=\"color: #ABB2BF\">(<\/span><span style=\"color: #98C379\">&#39;\/about&#39;<\/span><span style=\"color: #ABB2BF\">)\u00a0\u00a0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ABB2BF\">  <\/span><span style=\"color: #C678DD\">def<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #61AFEF\">about<\/span><span style=\"color: #ABB2BF\">():\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/span>\n<span class=\"line\"><span style=\"color: #ABB2BF\">    <\/span><span style=\"color: #C678DD\">return<\/span><span style=\"color: #ABB2BF\"> <\/span><span style=\"color: #98C379\">&quot;About Us Page!&quot;<\/span><span style=\"color: #ABB2BF\">\u00a0\u00a0<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h3 class=\"wp-block-heading\">6. Useful Flask Methods &amp; Extensions<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Flask comes with a couple of very useful methods that can help you build web apps that users will love.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, <code>flash(message, category)<\/code> can be used to give web app users feedback. Flask can also easily handle data retrieved from APIs that provide their response in JSON format. Anotehr popular package is the <code>flask_login<\/code> package, which &#8211; you might have guessed it &#8211; is used to create logins for web apps.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">On top of this, there are a lot of useful extensions for Flask. For example, when building your web app, you want to add a database, such as MySQL or SQLite to your application. Extensions, such as Flask-SQLAlchemy let you connect to any SQL database, so that you can work with in Flask (note that no extension is necessary for SQLite, because Python comes with built-in support for SQLite).<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Summary: Using Python for Web Development<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Learning how to build a web app using Python is a valuable skill for developers, especially those who are already familiar with Python from data science or using it inside tools such as Jupyter Notebook.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Python&#8217;s simplicity and powerful capabilities make it a top choice for efficient and scalable web app development. Whether you&#8217;re building a small business website or a complex web application, Python offers the tools and libraries to meet your needs.<br><br>With this guide, we hope you&#8217;re well on your way to creating your first web app with Python. Remember, practice makes perfect, so keep coding, exploring, and learning!<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">30-Minute Code Along Tutorial: Develop a Full-Stack Web App<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Follow our free step-by-step web app development guide<\/strong> and develop a full-stack web app in just 30 minutes with a fully responsive web UI and MySQL database.<\/p>\n\n\n\n<div class=\"wp-block-essential-blocks-button\"><div class=\"eb-parent-wrapper eb-parent-eb-button-7unux6m \"><div class=\"eb-button-wrapper eb-button-alignment eb-button-7unux6m\"><div class=\"eb-button\"><a class=\"eb-button-anchor\" href=\"https:\/\/preview-php85.dzine.org\/five\/code-along\/code-along-full-stack-web-app\/\" rel=\"noopener\"><strong>Start Developing<\/strong><\/a><\/div><\/div><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"<p>How to Develop a Web App in Python Whether you are a seasoned developer or a beginner, Python is a versatile and powerful language that can help you create robust web applications. Loved by developers for its clean and simple syntax and powerful data analysis toolkit, Python is one of the world&#8217;s top 5 most [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2546,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_eb_attr":"","_uag_custom_page_level_css":"","footnotes":""},"categories":[21],"tags":[],"class_list":["post-2544","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"acf":[],"uagb_featured_image_src":{"full":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App.png",960,540,false],"thumbnail":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App-150x150.png",150,150,true],"medium":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App-300x169.png",300,169,true],"medium_large":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App-768x432.png",768,432,true],"large":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App.png",960,540,false],"1536x1536":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App.png",960,540,false],"2048x2048":["https:\/\/preview-php85.dzine.org\/five\/wp-content\/uploads\/2024\/03\/Five.Co-Building-Your-First-Python-Web-App.png",960,540,false]},"uagb_author_info":{"display_name":"Dominik Keller","author_link":"https:\/\/preview-php85.dzine.org\/five\/author\/f1v5_ed3_my\/"},"uagb_comment_info":0,"uagb_excerpt":"How to Develop a Web App in Python Whether you are a seasoned developer or a beginner, Python is a versatile and powerful language that can help you create robust web applications. Loved by developers for its clean and simple syntax and powerful data analysis toolkit, Python is one of the world&#8217;s top 5 most&hellip;","_links":{"self":[{"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/posts\/2544","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/comments?post=2544"}],"version-history":[{"count":0,"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/posts\/2544\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/media\/2546"}],"wp:attachment":[{"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/media?parent=2544"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/categories?post=2544"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/preview-php85.dzine.org\/five\/wp-json\/wp\/v2\/tags?post=2544"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}