title
Python Flask Tutorial: Full-Featured Web App Part 1 - Getting Started

description
In this Python Flask Tutorial, we will be learning how to get started using the Flask framework. We will install the necessary packages and get a basic Hello World Application running in our browser. Let's get started... The code for this series can be found at: https://github.com/CoreyMSchafer/code_snippets/tree/master/Python/Flask_Blog Django Tutorials to create this same application: https://www.youtube.com/playlist?list=PL-osiE80TeTtoQCKZ03TU5fNfx2UY6U4p Python Installation: https://youtu.be/YYXdXT2l-Gg Virtual Environment Setup: https://youtu.be/N5vscPTWKOk https://youtu.be/cY2NXB_Tqq0 Sublime Text Setup: https://youtu.be/xFciV6Ew5r4 If name equals main explanation: https://youtu.be/sugvnHA7ElY ✅ Support My Channel Through Patreon: https://www.patreon.com/coreyms ✅ Become a Channel Member: https://www.youtube.com/channel/UCCezIgC97PvUuR4_gbFUs5g/join ✅ One-Time Contribution Through PayPal: https://goo.gl/649HFY ✅ Cryptocurrency Donations: Bitcoin Wallet - 3MPH8oY2EAgbLVy7RBMinwcBntggi7qeG3 Ethereum Wallet - 0x151649418616068fB46C3598083817101d3bCD33 Litecoin Wallet - MPvEBY5fxGkmPQgocfJbxP6EmTo5UUXMot ✅ Corey's Public Amazon Wishlist http://a.co/inIyro1 ✅ Equipment I Use and Books I Recommend: https://www.amazon.com/shop/coreyschafer ▶️ You Can Find Me On: My Website - http://coreyms.com/ My Second Channel - https://www.youtube.com/c/coreymschafer Facebook - https://www.facebook.com/CoreyMSchafer Twitter - https://twitter.com/CoreyMSchafer Instagram - https://www.instagram.com/coreymschafer/ #Python #Flask

detail
{'title': 'Python Flask Tutorial: Full-Featured Web App Part 1 - Getting Started', 'heatmap': [{'end': 230.024, 'start': 214.646, 'weight': 0.776}, {'end': 303.466, 'start': 266.841, 'weight': 0.765}, {'end': 494.364, 'start': 438.734, 'weight': 0.841}], 'summary': 'Learn how to build a full-featured web application using flask, with emphasis on user management and the release of flask version 1.0, covering profile picture updates, real-time post management, html code integration, and route creation.', 'chapters': [{'end': 75.395, 'segs': [{'end': 33.921, 'src': 'embed', 'start': 0.169, 'weight': 0, 'content': [{'end': 1.17, 'text': "Hey there, how's it going everybody?", 'start': 0.169, 'duration': 1.001}, {'end': 6.797, 'text': "In this series of videos, we'll be learning how to build a full featured web application using the Flask framework in Python.", 'start': 1.511, 'duration': 5.286}, {'end': 12.164, 'text': 'So Flask is an excellent micro framework that really makes it enjoyable to work with these backend web applications.', 'start': 7.158, 'duration': 5.006}, {'end': 16.729, 'text': 'And also at the time of this recording, they just released version 1.0, of the framework.', 'start': 12.484, 'duration': 4.245}, {'end': 18.45, 'text': "so it's a great time to learn this.", 'start': 16.729, 'duration': 1.721}, {'end': 19.13, 'text': 'so first of all,', 'start': 18.45, 'duration': 0.68}, {'end': 24.835, 'text': "let me show you what we'll be building in this series of videos and then we'll get started learning how to actually put all this together.", 'start': 19.13, 'duration': 5.705}, {'end': 33.921, 'text': "so this is the application that we'll be building in this series of videos and you can see that it is a blog style of an application where different users can make different posts.", 'start': 24.835, 'duration': 9.086}], 'summary': 'Learn to build a web app with flask in python, using the newly released version 1.0 of the framework.', 'duration': 33.752, 'max_score': 0.169, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo169.jpg'}, {'end': 81.559, 'src': 'embed', 'start': 53.057, 'weight': 2, 'content': [{'end': 58.722, 'text': 'And if they have forgot their password, then they can get a password reset email sent to their email address.', 'start': 53.057, 'duration': 5.665}, {'end': 66.329, 'text': "So if we log in here, so I'll log in with the email address that I used to sign up for the application here.", 'start': 59.082, 'duration': 7.247}, {'end': 71.532, 'text': 'And once I sign in, at the top here, we can see that we have a few new options.', 'start': 67.109, 'duration': 4.423}, {'end': 75.395, 'text': 'So if I go to my account, then we can see the account information that we have here.', 'start': 71.672, 'duration': 3.723}, {'end': 81.559, 'text': 'We also have the ability to update profile pictures to where we save pictures on the backend web application.', 'start': 75.735, 'duration': 5.824}], 'summary': 'Users can reset password, update account info, and profile pictures on web app.', 'duration': 28.502, 'max_score': 53.057, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo53057.jpg'}], 'start': 0.169, 'title': 'Building web application with flask in python', 'summary': 'Introduces a series of videos on building a full-featured web application using flask, emphasizing its user management system and the release of flask version 1.0.', 'chapters': [{'end': 75.395, 'start': 0.169, 'title': 'Building web application with flask in python', 'summary': 'Introduces the series of videos that focus on building a full featured web application using flask, highlighting its user management system and the release of flask version 1.0.', 'duration': 75.226, 'highlights': ['Flask framework in Python is used to build a full featured web application, which includes a blog style interface for different users to make posts.', 'Flask framework released version 1.0 at the time of recording, signifying an opportune time for learning.', 'The application includes a user management system that allows for user registration, login, and password reset via email.']}], 'duration': 75.226, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo169.jpg', 'highlights': ['Flask framework in Python used to build full-featured web application with blog style interface.', 'Flask framework released version 1.0 at recording time, signifying opportune learning time.', 'Application includes user management system for registration, login, and password reset via email.']}, {'end': 398.793, 'segs': [{'end': 114.043, 'src': 'embed', 'start': 75.735, 'weight': 0, 'content': [{'end': 81.559, 'text': 'We also have the ability to update profile pictures to where we save pictures on the backend web application.', 'start': 75.735, 'duration': 5.824}, {'end': 85.702, 'text': 'So if we update that, then we can see that that changes there.', 'start': 81.78, 'duration': 3.922}, {'end': 90.506, 'text': 'And that picture also automatically gets resized to save space on our web server.', 'start': 85.782, 'duration': 4.724}, {'end': 93.568, 'text': 'So we also have the ability to write new posts here.', 'start': 90.786, 'duration': 2.782}, {'end': 101.233, 'text': "If we go to the homepage, we can look at other people's posts, or if we go to a post that we have written,", 'start': 94.068, 'duration': 7.165}, {'end': 104.756, 'text': 'then you can see that we can actually update and delete our post here.', 'start': 101.233, 'duration': 3.523}, {'end': 110.64, 'text': 'So if I update this post, then I can say my latest updated post and post that.', 'start': 105.076, 'duration': 5.564}, {'end': 114.043, 'text': 'If I go back to the homepage, then we can see that that post was updated.', 'start': 110.8, 'duration': 3.243}], 'summary': 'The web application allows updating profile pictures, writing and managing posts, and automatic resizing of pictures to save space on the server.', 'duration': 38.308, 'max_score': 75.735, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo75735.jpg'}, {'end': 178.909, 'src': 'embed', 'start': 129.11, 'weight': 3, 'content': [{'end': 141.116, 'text': "because we're going to have to deal with databases and also accepting user input from forms and saving pictures onto the back end file system and sending emails and all kinds of different things.", 'start': 129.11, 'duration': 12.006}, {'end': 144.557, 'text': "So we're really going to learn a lot about the framework by building this.", 'start': 141.156, 'duration': 3.401}, {'end': 147.178, 'text': "Now I'm going to mention this several times throughout the series.", 'start': 144.937, 'duration': 2.241}, {'end': 152.019, 'text': "But if you're following along and would like to download the source code of each step in the process,", 'start': 147.478, 'duration': 4.541}, {'end': 157.601, 'text': "then I will have links to the source code of each video in the description section below so that you can download that if you'd like.", 'start': 152.019, 'duration': 5.582}, {'end': 161.582, 'text': "And also if you'd like to know how to build this same website in another framework,", 'start': 157.961, 'duration': 3.621}, {'end': 167.664, 'text': "then in the near future I'm also going to be releasing a series showing how to build this same site in Django and on Pyramid,", 'start': 161.582, 'duration': 6.082}, {'end': 169.245, 'text': 'and possibly other frameworks as well.', 'start': 167.664, 'duration': 1.581}, {'end': 174.687, 'text': "um, okay, so let's go ahead and get started learning how to build this using flask.", 'start': 169.845, 'duration': 4.842}, {'end': 178.909, 'text': "so i'm just going to close out of this application and open up my terminal here.", 'start': 174.687, 'duration': 4.222}], 'summary': 'Learn to build a website using flask, with plans for similar projects in django and pyramid, and access to source code for each step.', 'duration': 49.799, 'max_score': 129.11, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo129110.jpg'}, {'end': 244.027, 'src': 'heatmap', 'start': 214.646, 'weight': 6, 'content': [{'end': 216.747, 'text': 'And to do this, we can do a simple pip install.', 'start': 214.646, 'duration': 2.101}, {'end': 219.268, 'text': "So I'll say pip install Flask.", 'start': 216.827, 'duration': 2.441}, {'end': 224.283, 'text': "And once that is installed, let's make sure that it installed correctly.", 'start': 221.522, 'duration': 2.761}, {'end': 230.024, 'text': 'So we can do that just by starting up our Python REPL here and then importing flask.', 'start': 224.643, 'duration': 5.381}, {'end': 235.445, 'text': "So if we say import flask, if that doesn't give you an error, then that installed correctly.", 'start': 230.164, 'duration': 5.281}, {'end': 237.785, 'text': 'So now we can exit out of that interpreter.', 'start': 235.725, 'duration': 2.06}, {'end': 240.006, 'text': "And now let's create a new project from scratch.", 'start': 238.185, 'duration': 1.821}, {'end': 244.027, 'text': "So I'm here on my desktop, but you can create this project anywhere you'd like.", 'start': 240.286, 'duration': 3.741}], 'summary': 'Install flask using pip and verify installation through python repl.', 'duration': 29.381, 'max_score': 214.646, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo214646.jpg'}, {'end': 303.466, 'src': 'heatmap', 'start': 266.841, 'weight': 0.765, 'content': [{'end': 269.103, 'text': "but you can use any editor that you'd like.", 'start': 266.841, 'duration': 2.262}, {'end': 276.109, 'text': "so I'm going to open up sublime text, go to file open and then open up this directory.", 'start': 269.103, 'duration': 7.006}, {'end': 281.06, 'text': 'Okay, so now we have a completely empty project.', 'start': 278.519, 'duration': 2.541}, {'end': 289.202, 'text': "Now within our project directory here, I want to create a new file, and I'm going to call this flaskblog.py.", 'start': 281.36, 'duration': 7.842}, {'end': 292.643, 'text': 'And now we should be ready for a basic Flask application.', 'start': 290.062, 'duration': 2.581}, {'end': 295.904, 'text': 'So I have the Flask website pulled up here in my browser.', 'start': 292.943, 'duration': 2.961}, {'end': 303.466, 'text': 'So if I go to this, then if you go to the front page of their documentation, then they have about the simplest application that you can start with.', 'start': 296.204, 'duration': 7.262}], 'summary': 'Using sublime text, creating flaskblog.py for a basic flask application.', 'duration': 36.625, 'max_score': 266.841, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo266841.jpg'}, {'end': 386.367, 'src': 'embed', 'start': 343.48, 'weight': 7, 'content': [{'end': 351.223, 'text': 'Now if we run the script with Python directly, then double underscore name can be equal to double underscore main.', 'start': 343.48, 'duration': 7.743}, {'end': 352.844, 'text': "And we'll see that in just a second.", 'start': 351.363, 'duration': 1.481}, {'end': 359.067, 'text': 'Basically, that is so Flask knows where to look for your templates and static files and things like that.', 'start': 353.384, 'duration': 5.683}, {'end': 362.328, 'text': 'So now we have an instantiated Flask application.', 'start': 359.507, 'duration': 2.821}, {'end': 364.489, 'text': 'in this app variable.', 'start': 362.868, 'duration': 1.621}, {'end': 366.671, 'text': 'now we can create our routes.', 'start': 364.489, 'duration': 2.182}, {'end': 371.235, 'text': 'so our routes are what we type into our browser to go to different pages.', 'start': 366.671, 'duration': 4.564}, {'end': 380.222, 'text': "so, for example, you've probably been to websites that have about pages and contact pages, and in flask we create these using route decorators.", 'start': 371.235, 'duration': 8.987}, {'end': 386.367, 'text': "so decorators can be a confusing topic, but you don't really need to understand how they work in order to use flask.", 'start': 380.222, 'duration': 6.145}], 'summary': 'Using double underscore main, flask sets up routes and decorators for creating web pages.', 'duration': 42.887, 'max_score': 343.48, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo343480.jpg'}], 'start': 75.735, 'title': 'Web app image updates & flask app building', 'summary': 'Covers updating profile pictures with automatic resizing, post management with real-time updates, and building a flask application including package installation, project creation, basic app setup, and route usage.', 'chapters': [{'end': 114.043, 'start': 75.735, 'title': 'Web application image updates and post management', 'summary': 'Discusses the capability of updating profile pictures with automatic resizing for space saving, as well as the functionality to write, update, and delete posts, with changes being reflected in real-time on the web application homepage.', 'duration': 38.308, 'highlights': ['The system enables updating profile pictures, with automatic resizing for space saving on the web server.', 'Users can write, update, and delete posts, with real-time reflection of changes on the web application homepage.', 'The ability to update and delete posts is demonstrated with a specific example of updating a post and seeing the changes reflected on the homepage.']}, {'end': 398.793, 'start': 114.423, 'title': 'Building flask application', 'summary': 'Outlines the process of building a flask application, including installing packages, creating a new project, setting up a basic flask application, and explaining the use of routes and decorators.', 'duration': 284.37, 'highlights': ['The process involves handling databases, user input, file system operations, and email functionality, providing a comprehensive learning experience about the Flask framework.', 'Links to the source code of each step in the process will be available in the description section of the videos for easy access.', 'Future plans include releasing a series demonstrating how to build the same website in Django, Pyramid, and possibly other frameworks.', "Installation of Flask is demonstrated using 'pip install Flask', ensuring the correct installation through the Python REPL.", "An understanding of the use of 'double underscore name' in Python for Flask application setup is explained, providing clarity on its functionality.", 'The creation of routes using route decorators in Flask is presented, emphasizing their purpose and functionality in defining different pages within the application.']}], 'duration': 323.058, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo75735.jpg', 'highlights': ['Real-time post updates on web application homepage', 'Automatic resizing for profile pictures to save space', 'Demonstration of updating and deleting posts with specific example', 'Comprehensive learning experience covering databases, user input, file system operations, and email functionality', 'Availability of source code links for each step in the process', 'Future plans to demonstrate building the website in other frameworks', "Demonstration of Flask installation using 'pip install Flask'", "Explanation of 'double underscore name' usage in Python for Flask application setup", 'Presentation of route creation using route decorators in Flask']}, {'end': 1015.798, 'segs': [{'end': 422.085, 'src': 'embed', 'start': 399.133, 'weight': 3, 'content': [{'end': 412.14, 'text': 'And in this case this app.route decorator will handle all of the complicated backend stuff and simply allow us to write a function that returns the information that will be shown on our website for this specific route.', 'start': 399.133, 'duration': 13.007}, {'end': 418.423, 'text': 'So this forward slash here is just the root page of our website, or you can think of it as the homepage.', 'start': 412.5, 'duration': 5.923}, {'end': 422.085, 'text': 'And we are simply returning the text, hello world.', 'start': 418.844, 'duration': 3.241}], 'summary': "Using app.route decorator simplifies backend handling, returning 'hello world' on the root page.", 'duration': 22.952, 'max_score': 399.133, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo399133.jpg'}, {'end': 494.364, 'src': 'heatmap', 'start': 438.734, 'weight': 0.841, 'content': [{'end': 444.137, 'text': "So I'm going to pull back up my command line here, and now I'm going to navigate to my project directory.", 'start': 438.734, 'duration': 5.403}, {'end': 450.1, 'text': "So I'm going to do a cd flask blog, and the cd command is the same on Windows as well.", 'start': 444.157, 'duration': 5.943}, {'end': 454.222, 'text': "And now we're in the same directory where that flask blog.py module lives.", 'start': 450.42, 'duration': 3.802}, {'end': 460.766, 'text': 'Now before we run our application, we need to set an environment variable to the file that we want to be our Flask application.', 'start': 454.562, 'duration': 6.204}, {'end': 469.412, 'text': 'So in my case, I can say export Flask underscore app is equal to Flask blog dot pi.', 'start': 461.126, 'duration': 8.286}, {'end': 471.874, 'text': "Now that's the command that you use on Mac and Linux.", 'start': 469.752, 'duration': 2.122}, {'end': 478.778, 'text': "If you're on Windows, then that is going to be equal to set Flask app instead of export.", 'start': 472.174, 'duration': 6.604}, {'end': 479.959, 'text': 'So you can just run that.', 'start': 478.918, 'duration': 1.041}, {'end': 485.581, 'text': 'And now with that environment variable set, we should be able to run our Flask application just by saying Flask run.', 'start': 480.359, 'duration': 5.222}, {'end': 492.013, 'text': "So if that worked and you don't have any errors, then you should see this message that says that it's serving your Flask app on 127.0.", 'start': 486.041, 'duration': 5.972}, {'end': 494.364, 'text': '0.1 And this is the IP address of your local machine.', 'start': 492.013, 'duration': 2.351}], 'summary': 'Navigated to project directory, set flask environment variable, and ran flask application successfully.', 'duration': 55.63, 'max_score': 438.734, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo438734.jpg'}, {'end': 485.581, 'src': 'embed', 'start': 461.126, 'weight': 4, 'content': [{'end': 469.412, 'text': 'So in my case, I can say export Flask underscore app is equal to Flask blog dot pi.', 'start': 461.126, 'duration': 8.286}, {'end': 471.874, 'text': "Now that's the command that you use on Mac and Linux.", 'start': 469.752, 'duration': 2.122}, {'end': 478.778, 'text': "If you're on Windows, then that is going to be equal to set Flask app instead of export.", 'start': 472.174, 'duration': 6.604}, {'end': 479.959, 'text': 'So you can just run that.', 'start': 478.918, 'duration': 1.041}, {'end': 485.581, 'text': 'And now with that environment variable set, we should be able to run our Flask application just by saying Flask run.', 'start': 480.359, 'duration': 5.222}], 'summary': 'Setting environment variable for flask application on different platforms', 'duration': 24.455, 'max_score': 461.126, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo461126.jpg'}, {'end': 579.55, 'src': 'embed', 'start': 552.899, 'weight': 1, 'content': [{'end': 556.38, 'text': "Okay, so now let's try to update our code to include some actual HTML.", 'start': 552.899, 'duration': 3.481}, {'end': 561.102, 'text': "So I'm going to wrap our text here in h1 tags, which are heading tags.", 'start': 556.76, 'duration': 4.342}, {'end': 563.803, 'text': 'And this should make the text look a lot larger.', 'start': 561.522, 'duration': 2.281}, {'end': 567.364, 'text': "So I'm going to open up our flask blog.", 'start': 564.103, 'duration': 3.261}, {'end': 577.228, 'text': "And instead of returning just hello world, I'm going to wrap these in h1 tags, which are HTML heading one tags.", 'start': 567.884, 'duration': 9.344}, {'end': 579.55, 'text': 'So we can close that out and save it.', 'start': 577.528, 'duration': 2.022}], 'summary': 'Updating code to include html h1 tags to make text look larger.', 'duration': 26.651, 'max_score': 552.899, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo552899.jpg'}, {'end': 817.837, 'src': 'embed', 'start': 786.709, 'weight': 2, 'content': [{'end': 791.35, 'text': 'And now, instead of doing flask run like we did before, that uses the environment variables.', 'start': 786.709, 'duration': 4.641}, {'end': 799.171, 'text': 'we could instead just call this script directly with Python by saying Python and then flask blog.py and run that directly.', 'start': 791.35, 'duration': 7.821}, {'end': 802.472, 'text': 'And if we run that, we can see that we get a similar output.', 'start': 799.191, 'duration': 3.281}, {'end': 805.412, 'text': "It says that we're running on our local host and debug mode.", 'start': 802.492, 'duration': 2.92}, {'end': 810.173, 'text': "So if we go back to our browser and refresh the page, then we can see that that's still working.", 'start': 805.712, 'duration': 4.461}, {'end': 817.837, 'text': 'Now running the module directly used to be how I always ran Flask applications, but now the Flask documentation uses the Flask run command,', 'start': 810.493, 'duration': 7.344}], 'summary': 'Running the script directly with python for flask application gives similar output as using flask run command.', 'duration': 31.128, 'max_score': 786.709, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo786709.jpg'}, {'end': 1002.17, 'src': 'embed', 'start': 973.711, 'weight': 0, 'content': [{'end': 977.294, 'text': 'So those two routes are being handled by the same function.', 'start': 973.711, 'duration': 3.583}, {'end': 979.915, 'text': 'Okay, so I think that is going to do it for the first video.', 'start': 977.814, 'duration': 2.101}, {'end': 984.819, 'text': 'Now we know how to get a Flask application up and running and also how to create some basic routes.', 'start': 980.296, 'duration': 4.523}, {'end': 992.564, 'text': "And in the next video, we'll learn how to return some more complicated HTML code using templates and also how to pass variables to our webpage.", 'start': 985.219, 'duration': 7.345}, {'end': 997.067, 'text': 'But if you have any questions about what we covered in this video, then feel free to ask in the comment section below,', 'start': 992.924, 'duration': 4.143}, {'end': 998.227, 'text': "and I'll do my best to answer those.", 'start': 997.067, 'duration': 1.16}, {'end': 1002.17, 'text': 'And if you enjoy these tutorials and would like to support them, then there are several ways you can do that.', 'start': 998.587, 'duration': 3.583}], 'summary': 'Intro to flask app creation with basic routes. next: complex html templates & variable passing.', 'duration': 28.459, 'max_score': 973.711, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo973711.jpg'}], 'start': 399.133, 'title': 'Flask web development and html in flask', 'summary': 'Covers using the app.route decorator, setting up environment variables, running the flask application, updating code with html tags, running the application in debug mode, and creating routes for different pages, with examples and explanations.', 'chapters': [{'end': 552.439, 'start': 399.133, 'title': 'Flask web development', 'summary': "Discusses using the app.route decorator to handle backend operations in a flask application, setting up the environment variable, and running the flask application to display 'hello world' on the homepage.", 'duration': 153.306, 'highlights': ['The app.route decorator simplifies backend operations, allowing the creation of functions to return specific route information for the website.', "The process of setting the environment variable for the Flask application is illustrated, using 'export Flask_app' on Mac and Linux, and 'set Flask_app' on Windows.", 'The running of the Flask application is demonstrated, with the server serving the Flask app on 127.0.0.1 and port 5000, and the necessity of keeping the server running to view the site.', "The process of accessing the sample application through the web browser and the usage of 'localhost' as an alias for the local machine's IP address is explained, displaying the 'hello world' text on the homepage."]}, {'end': 1015.798, 'start': 552.899, 'title': 'Updating code with html in flask', 'summary': 'Demonstrates updating code to include html tags in a flask application, running the application in debug mode, and creating routes for different pages, illustrating the process with examples and explanations.', 'duration': 462.899, 'highlights': ['The process of updating code to include HTML tags in a Flask application is demonstrated, and the use of h1 tags to change the appearance of text is explained. Flask blog is updated to include h1 tags, changing the appearance of text.', 'The process of running the Flask application in debug mode is explained, and the method of using environment variables or setting debug mode directly using Python is demonstrated. Debug mode is set using environment variables and by directly running the application with debug mode.', 'The creation of routes for different pages in a Flask application is illustrated, showing how to handle multiple routes with the same function by adding decorators. Routes for different pages are created, and the handling of multiple routes by the same function is demonstrated.']}], 'duration': 616.665, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/MwZwr5Tvyxo/pics/MwZwr5Tvyxo399133.jpg', 'highlights': ['The creation of routes for different pages in a Flask application is illustrated, showing how to handle multiple routes with the same function by adding decorators.', 'The process of updating code to include HTML tags in a Flask application is demonstrated, and the use of h1 tags to change the appearance of text is explained.', 'The process of running the Flask application in debug mode is explained, and the method of using environment variables or setting debug mode directly using Python is demonstrated.', 'The app.route decorator simplifies backend operations, allowing the creation of functions to return specific route information for the website.', "The process of setting the environment variable for the Flask application is illustrated, using 'export Flask_app' on Mac and Linux, and 'set Flask_app' on Windows."]}], 'highlights': ['Flask framework released version 1.0 at recording time, signifying opportune learning time.', 'Demonstration of updating and deleting posts with specific example', 'Automatic resizing for profile pictures to save space', 'The creation of routes for different pages in a Flask application is illustrated, showing how to handle multiple routes with the same function by adding decorators.', 'The process of updating code to include HTML tags in a Flask application is demonstrated, and the use of h1 tags to change the appearance of text is explained.']}