title
Python Flask Tutorial For Beginners | Flask Web Development Tutorial | Python Training | Edureka

description
🔥 Full-Stack Web Development Internship Program: http://bit.ly/fs-internship This Edureka Python Flask tutorial will cover all the fundamentals of Flask. It will also explain how you can develop your own website using Flask in Python. 00:26 - Agenda 00:49 - Introduction to Flask 03:14 - Installing Flask 05:40 - Flask Application 09:36 - Routing in Flask 10:56 - Variable Rules in Flask 15:29 - URL Binding in Flask 17:26 - HTTP Methods using Flask 20:56 - Templates in Flask 25:00 - Static Files in Flask 26:22 - Request Objects in Flask 27:36 - Cookies in Flask 30:12 - Redirects and Errors in Flask 32:08 - Flask Extensions 34:05 - Conclusion Do subscribe to our channel and hit the bell icon to never miss an update from us in the future: https://goo.gl/6ohpTV Python Certification Training: https://www.edureka.co/data-science-python-certification-course #edureka #FlaskTutorial #PythonFlask #WebDevelopmentTutorial Check out our Python Tutorial Playlist: https://goo.gl/WsBpKe Instagram: https://www.instagram.com/edureka_learning/ Facebook: https://www.facebook.com/edurekaIN/ Twitter: https://twitter.com/edurekain LinkedIn: https://www.linkedin.com/company/edureka How it Works? 1. This is a 5 Week Instructor-led Online Course,40 hours of assignment and 20 hours of project work 2. We have a 24x7 One-on-One LIVE Technical Support to help you with any problems you might face or any clarifications you may require during the course. 3. At the end of the training, you will be working on a real-time project for which we will provide you a Grade and a Verifiable Certificate! - - - - - - - - - - - - - - - - - About the Course Edureka’s Machine Learning Course using Python is designed to make you grab the concepts of Machine Learning. The Machine Learning training will provide a deep understanding of Machine Learning and its mechanism. As a Data Scientist, you will be learning the importance of Machine Learning and its implementation in Python programming language. Furthermore, you will be taught Reinforcement Learning which in turn is an important aspect of Artificial Intelligence. You will be able to automate real-life scenarios using Machine Learning Algorithms. Towards the end of the course, we will be discussing various practical use cases of Machine Learning in Python programming language to enhance your learning experience. After completing this Machine Learning Certification Training using Python, you should be able to: Gain insight into the 'Roles' played by a Machine Learning Engineer Automate data analysis using python Describe Machine Learning Work with real-time data Learn tools and techniques for predictive modeling Discuss Machine Learning algorithms and their implementation Validate Machine Learning algorithms Explain Time Series and it’s related concepts Gain expertise to handle business in the future, living the present - - - - - - - - - - - - - - - - - - - Why learn Machine Learning with Python? Data Science is a set of techniques that enable the computers to learn the desired behavior from data without explicitly being programmed. It employs techniques and theories drawn from many fields within the broad areas of mathematics, statistics, information science, and computer science. This course exposes you to different classes of machine learning algorithms like supervised, unsupervised and reinforcement algorithms. This course imparts you the necessary skills like data pre-processing, dimensional reduction, model evaluation and also exposes you to different machine learning algorithms like regression, clustering, decision trees, random forest, Naive Bayes and Q-Learning. For more information, Please write back to us at sales@edureka.co or call us at IND: 9606058406 / US: 18338555775 (toll free).

detail
{'title': 'Python Flask Tutorial For Beginners | Flask Web Development Tutorial | Python Training | Edureka', 'heatmap': [{'end': 389.393, 'start': 361.79, 'weight': 0.892}, {'end': 518.702, 'start': 494.125, 'weight': 0.738}, {'end': 755.738, 'start': 730.836, 'weight': 1}, {'end': 1183.532, 'start': 1138.37, 'weight': 0.716}, {'end': 1251.644, 'start': 1201.135, 'weight': 0.767}], 'summary': 'This python flask tutorial for beginners covers the introduction to flask, its installation, web application routing, http methods, jinja template engine, flask request object, url handling, and features like the redirect function and http status codes. the tutorial provides practical demonstrations and highlights foundational components of the flask framework, making it intuitive and beginner-friendly.', 'chapters': [{'end': 194.587, 'segs': [{'end': 73.99, 'src': 'embed', 'start': 11.055, 'weight': 0, 'content': [{'end': 13.436, 'text': 'Hello everyone, this is Anirudh from Edureka.', 'start': 11.055, 'duration': 2.381}, {'end': 15.718, 'text': "And in this session, we'll be looking at Flask guys.", 'start': 13.737, 'duration': 1.981}, {'end': 22.241, 'text': 'So this tutorial is basically meant for beginners who are about to start their learning about Flask and web development and all of that.', 'start': 15.758, 'duration': 6.483}, {'end': 26.964, 'text': "I'll try to keep the session very interactive and simple so that you guys can follow through as well.", 'start': 22.682, 'duration': 4.282}, {'end': 29.826, 'text': "So let's begin by checking out the agenda for today.", 'start': 27.705, 'duration': 2.121}, {'end': 35.096, 'text': 'So guys we start out by introducing flask and how it came into the picture next up.', 'start': 30.712, 'duration': 4.384}, {'end': 39.3, 'text': "We'll be checking out how we can actually install flask and how we can work with it,", 'start': 35.116, 'duration': 4.184}, {'end': 42.844, 'text': "and later on I'll be walking you through all of the concepts that are present in flask.", 'start': 39.3, 'duration': 3.544}, {'end': 48.889, 'text': "And lastly we'll be looking at code for each individual module so that we can actually understand the concepts better.", 'start': 43.364, 'duration': 5.525}, {'end': 50.531, 'text': "So let's begin guys.", 'start': 49.57, 'duration': 0.961}, {'end': 56.847, 'text': 'Well, what is flask? Well flask is a web application framework, which is written in Python guys.', 'start': 51.232, 'duration': 5.615}, {'end': 60.047, 'text': 'So it is as simple and as straightforward as that.', 'start': 57.347, 'duration': 2.7}, {'end': 67.709, 'text': 'So basically a person called Armin Ronacher who actually led an international group of enthusiasts called us poco developed it.', 'start': 60.588, 'duration': 7.121}, {'end': 73.99, 'text': 'Well flask has a large community of learners and collaborators on the overall and it is open source as well.', 'start': 68.109, 'duration': 5.881}], 'summary': 'Anirudh introduces flask for beginners, covering installation, concepts, and code modules, emphasizing its simplicity and open-source nature.', 'duration': 62.935, 'max_score': 11.055, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt011055.jpg'}, {'end': 137.74, 'src': 'embed', 'start': 92.64, 'weight': 3, 'content': [{'end': 102.322, 'text': 'libraries and modules that actually enable a particular web developer to write applications without having to bother about any low-level details such as protocol,', 'start': 92.64, 'duration': 9.682}, {'end': 103.642, 'text': 'thread management or all these.', 'start': 102.322, 'duration': 1.32}, {'end': 110.363, 'text': "right, one major highlight about using flask is it's really intuitive and easy to use, especially for beginners guys.", 'start': 103.642, 'duration': 6.721}, {'end': 114.314, 'text': 'So basically as I mentioned Mr. Armin who is the founder of flask.', 'start': 111.013, 'duration': 3.301}, {'end': 122.877, 'text': 'He leads an international group of python enthusiasts called as poco and flask is based on the works you WSGI toolkit and the Jenga to template.', 'start': 114.774, 'duration': 8.103}, {'end': 125.738, 'text': 'Well, both of these are actually the poco projects guys.', 'start': 123.357, 'duration': 2.381}, {'end': 133.759, 'text': 'Well WSGI actually stands for web server Gateway interface and it has been adopted as the standard for python web development guys.', 'start': 126.218, 'duration': 7.541}, {'end': 137.74, 'text': 'So WSGI is a specification for a universal interface.', 'start': 134.099, 'duration': 3.641}], 'summary': 'Flask simplifies web development, leveraging wsgi and jenga templates, appealing to beginners.', 'duration': 45.1, 'max_score': 92.64, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt092640.jpg'}, {'end': 194.587, 'src': 'embed', 'start': 159.207, 'weight': 5, 'content': [{'end': 163.01, 'text': 'well guys, Zynga 2 is a popular templating engine for python.', 'start': 159.207, 'duration': 3.803}, {'end': 169.075, 'text': 'a web templating engine actually combines a template with a certain data source to render some dynamic web pages.', 'start': 163.01, 'duration': 6.065}, {'end': 170.336, 'text': 'It is as simple as that.', 'start': 169.295, 'duration': 1.041}, {'end': 174.018, 'text': 'Well flask is often referred to as a micro framework actually guys.', 'start': 170.756, 'duration': 3.262}, {'end': 178.542, 'text': 'So it aims at keeping the core of an application simple yet very extensible.', 'start': 174.439, 'duration': 4.103}, {'end': 185.004, 'text': 'Flask does not have any inbuilt abstraction layer for database handling or nor does it have any validation support.', 'start': 179.082, 'duration': 5.922}, {'end': 190.326, 'text': 'correct, but flask supports the extensions to add such functionality to our actual application.', 'start': 185.004, 'duration': 5.322}, {'end': 193.387, 'text': "Well, I'll be covering some of the major flask extensions as well.", 'start': 190.666, 'duration': 2.721}, {'end': 194.587, 'text': 'So stay tuned until the end.', 'start': 193.407, 'duration': 1.18}], 'summary': 'Zynga 2 is a popular templating engine for python, while flask is a micro framework with extensible capabilities and support for extensions.', 'duration': 35.38, 'max_score': 159.207, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0159207.jpg'}], 'start': 11.055, 'title': 'Introduction to flask web framework', 'summary': "Introduces flask, a web application framework written in python, developed by armin ronacher, and known for its intuitive and beginner-friendly nature. it covers installation and concepts, and promises an interactive and simple session for easy understanding. additionally, it discusses the foundational components of the flask framework, including the web server gateway interface (wsgi) and the jinja2 templating engine, and explains flask's extensibility features and support for adding functionality through extensions.", 'chapters': [{'end': 50.531, 'start': 11.055, 'title': 'Introduction to flask for beginners', 'summary': 'Introduces flask for beginners, covers its installation and concepts, and promises to make the session interactive and simple for easy understanding.', 'duration': 39.476, 'highlights': ['The tutorial is focused on beginners who are about to start their learning about Flask and web development.', 'The session promises to be interactive and simple to follow.', 'The agenda includes introducing Flask, installation, working with it, walking through concepts, and looking at code for each module.']}, {'end': 114.314, 'start': 51.232, 'title': 'Introduction to flask web framework', 'summary': 'Introduces flask, a web application framework written in python, developed by armin ronacher, with a large open-source community and known for its intuitive and beginner-friendly nature.', 'duration': 63.082, 'highlights': ['Flask is a web application framework written in Python, developed by Armin Ronacher, with a large open-source community.', 'Flask is known for its intuitive and beginner-friendly nature, making it easy to use, especially for beginners.', 'A web framework, such as Flask, represents a collection of libraries and modules that enable web developers to write applications without dealing with low-level details like protocol and thread management.']}, {'end': 194.587, 'start': 114.774, 'title': 'Understanding flask and poco projects', 'summary': 'Introduces the web server gateway interface (wsgi) and the jinja2 templating engine, which are foundational components of the flask framework, and explains how flask serves as a micro framework with extensibility features and support for adding functionality through extensions.', 'duration': 79.813, 'highlights': ['Flask does not have any inbuilt abstraction layer for database handling or validation support, but it supports extensions to add such functionality to the application.', 'WSGI is the standard for Python web development, serving as a specification for a universal interface between a web server and a web application.', 'Jinja2 is a popular templating engine for Python, used to combine templates with data sources for rendering dynamic web pages.', 'Flask is often referred to as a micro framework, aiming to keep the core of an application simple yet very extensible.']}], 'duration': 183.532, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt011055.jpg', 'highlights': ['Flask is a web application framework written in Python, developed by Armin Ronacher, with a large open-source community.', 'The tutorial is focused on beginners who are about to start their learning about Flask and web development.', 'The session promises to be interactive and simple to follow.', 'Flask is known for its intuitive and beginner-friendly nature, making it easy to use, especially for beginners.', 'The agenda includes introducing Flask, installation, working with it, walking through concepts, and looking at code for each module.', 'Flask does not have any inbuilt abstraction layer for database handling or validation support, but it supports extensions to add such functionality to the application.', 'WSGI is the standard for Python web development, serving as a specification for a universal interface between a web server and a web application.', 'Jinja2 is a popular templating engine for Python, used to combine templates with data sources for rendering dynamic web pages.', 'Flask is often referred to as a micro framework, aiming to keep the core of an application simple yet very extensible.', 'A web framework, such as Flask, represents a collection of libraries and modules that enable web developers to write applications without dealing with low-level details like protocol and thread management.']}, {'end': 574.828, 'segs': [{'end': 239.499, 'src': 'embed', 'start': 211.425, 'weight': 2, 'content': [{'end': 217.491, 'text': "However, you will require a little bit of HTML as well, but it is really simple and you'll figure it out as soon as I start explaining.", 'start': 211.425, 'duration': 6.066}, {'end': 218.972, 'text': "So now that that's done.", 'start': 218.091, 'duration': 0.881}, {'end': 220.494, 'text': "Let's begin by installing flask.", 'start': 218.992, 'duration': 1.502}, {'end': 223.115, 'text': 'Well guys the prerequisites are pretty much simple.', 'start': 221.114, 'duration': 2.001}, {'end': 227.516, 'text': 'The only prerequisite is will actually require python 2.6 or higher rate.', 'start': 223.315, 'duration': 4.201}, {'end': 230.536, 'text': 'So that is what basically is required for the installation of flask.', 'start': 227.536, 'duration': 3}, {'end': 239.499, 'text': 'Well flask and its dependencies work really well with python 3 actually python 3.3 onwards and many flask extensions do not support it properly.', 'start': 230.997, 'duration': 8.502}], 'summary': 'Installing flask requires python 2.6 or higher; extensions may not fully support python 3.3+.', 'duration': 28.074, 'max_score': 211.425, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0211425.jpg'}, {'end': 277.886, 'src': 'embed', 'start': 250.904, 'weight': 0, 'content': [{'end': 255.447, 'text': 'It actually helps the user to create multiple Python environments side-by-side.', 'start': 250.904, 'duration': 4.543}, {'end': 261.531, 'text': 'thereby it can actually avoid compatibility issues between the different versions of all of the libraries that are actually present.', 'start': 255.447, 'duration': 6.084}, {'end': 266.515, 'text': "Well, so how do we install virtually envy? Well, it's pretty much simple guys for Windows.", 'start': 262.031, 'duration': 4.484}, {'end': 271.318, 'text': "We use the following command, right? So we actually pip install virtually envy and it's as simple as that.", 'start': 266.535, 'duration': 4.783}, {'end': 274.461, 'text': 'Well, this might require administrator privileges as well.', 'start': 271.878, 'duration': 2.583}, {'end': 277.886, 'text': 'So in case you guys are installing this on Ubuntu or any Linux or something.', 'start': 274.782, 'duration': 3.104}], 'summary': "Virtually envy helps create multiple python environments, avoiding compatibility issues. installation is simple, using 'pip install virtually envy'.", 'duration': 26.982, 'max_score': 250.904, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0250904.jpg'}, {'end': 342.179, 'src': 'embed', 'start': 315.607, 'weight': 1, 'content': [{'end': 319.509, 'text': "So at this point, we're actually ready to install flask and we haven't installed it yet.", 'start': 315.607, 'duration': 3.902}, {'end': 327.132, 'text': "So how do we install flask any guesses? Well as the name suggests, it's really simple guys pep install flask is all you need to do.", 'start': 319.889, 'duration': 7.243}, {'end': 333.394, 'text': "and this command can be run directly right? So you wouldn't need any virtual environment because we are installing this system wide.", 'start': 327.811, 'duration': 5.583}, {'end': 337.396, 'text': "Well, if you have done everything at this point, you'll have flask ready in your system guys.", 'start': 333.894, 'duration': 3.502}, {'end': 342.179, 'text': 'Well in order to test the flask installation, we need to actually check out a simple program for that.', 'start': 337.697, 'duration': 4.482}], 'summary': "Ready to install flask with 'pip install flask' system wide.", 'duration': 26.572, 'max_score': 315.607, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0315607.jpg'}, {'end': 389.393, 'src': 'heatmap', 'start': 361.79, 'weight': 0.892, 'content': [{'end': 367.452, 'text': 'So basically in our case an object of the flask class is actually our WSGI application guys.', 'start': 361.79, 'duration': 5.662}, {'end': 372.695, 'text': 'However, the flask constructor takes the name of the current module as the argument right?', 'start': 368.012, 'duration': 4.683}, {'end': 377.877, 'text': 'So, basically, the flask constructor takes the name of the current module to be the argument case.', 'start': 373.075, 'duration': 4.802}, {'end': 382.433, 'text': 'As soon as you start typing this code, make sure you save it as hello.py for now guys.', 'start': 378.544, 'duration': 3.889}, {'end': 385.092, 'text': 'So next year something called as a root function.', 'start': 383.231, 'duration': 1.861}, {'end': 389.393, 'text': 'Well, the root function of the flask class is basically a decorator guys.', 'start': 385.472, 'duration': 3.921}], 'summary': 'Flask constructor takes the name of current module as argument, root function is a decorator.', 'duration': 27.603, 'max_score': 361.79, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0361790.jpg'}, {'end': 522.707, 'src': 'heatmap', 'start': 494.125, 'weight': 0.738, 'content': [{'end': 495.666, 'text': "I'll be doing it using pycharm.", 'start': 494.125, 'duration': 1.541}, {'end': 498.148, 'text': 'So all I need to do is directly run and then open the browser.', 'start': 495.686, 'duration': 2.462}, {'end': 500.029, 'text': 'So let me just show you guys the output.', 'start': 498.548, 'duration': 1.481}, {'end': 504.671, 'text': "So guys I've opened up my pycharm and this is the program that we were actually discussing.", 'start': 500.849, 'duration': 3.822}, {'end': 507.573, 'text': 'So let me go ahead and run this and we can check out the output together.', 'start': 504.791, 'duration': 2.782}, {'end': 511.494, 'text': 'So, as you can see, it actually provides us with a link, right?', 'start': 509.071, 'duration': 2.423}, {'end': 515.879, 'text': 'So all we need to do is click on the link and it is going to take us to our browser and we can see the output.', 'start': 511.514, 'duration': 4.365}, {'end': 518.702, 'text': 'So as you can see we got our hello world output.', 'start': 516.299, 'duration': 2.403}, {'end': 520.563, 'text': 'So let me go back to our presentation.', 'start': 519.143, 'duration': 1.42}, {'end': 522.707, 'text': 'So next up on this flash tutorial.', 'start': 521.145, 'duration': 1.562}], 'summary': "Demonstrated running a program in pycharm, producing 'hello world' output and displaying it in the browser.", 'duration': 28.582, 'max_score': 494.125, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0494125.jpg'}, {'end': 566.378, 'src': 'embed', 'start': 537.064, 'weight': 3, 'content': [{'end': 539.705, 'text': 'Well to avoid this there is something called as the debug mode.', 'start': 537.064, 'duration': 2.641}, {'end': 545.807, 'text': 'Well, it is also called as a debug support, because the server will reload itself if any of the code changes,', 'start': 539.965, 'duration': 5.842}, {'end': 547.668, 'text': 'so you not have to stop it and start it again.', 'start': 545.807, 'duration': 1.861}, {'end': 554.97, 'text': 'Well as the name suggests it will also provide a basic useful debugger to track all the errors if we do get any in the application.', 'start': 548.208, 'duration': 6.762}, {'end': 562.274, 'text': 'So how do we enable the debug mode? Well guys it is enabled by setting the debug property of the application object to be true.', 'start': 555.606, 'duration': 6.668}, {'end': 566.378, 'text': 'Well, this is done before running or passing the debug parameter to the run method.', 'start': 562.574, 'duration': 3.804}], 'summary': 'Debug mode automatically reloads server on code changes and provides debugger for error tracking.', 'duration': 29.314, 'max_score': 537.064, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0537064.jpg'}], 'start': 195.51, 'title': 'Installing and using flask', 'summary': 'Covers the installation of flask, requiring python 2.6 or higher, and the use of virtualenv to create multiple python environments, with specific installation commands provided for windows and ubuntu. it also covers writing a simple program to test the installation and enabling debug mode for automatic server reload and error tracking.', 'chapters': [{'end': 315.207, 'start': 195.51, 'title': 'Installing flask and virtualenv', 'summary': 'Covers the installation of flask, requiring python 2.6 or higher, and the use of virtualenv to create multiple python environments, with specific installation commands provided for windows and ubuntu.', 'duration': 119.697, 'highlights': ['The only prerequisite for installing Flask is Python 2.6 or higher, and it is recommended to install Flask on Python 2.7 for better compatibility.', "Virtualenv helps create multiple Python environments to avoid compatibility issues between different library versions, and it can be installed using 'pip install virtualenv' on Windows and 'sudo apt-get install' on Ubuntu.", "To create a new project, a directory is made using 'mkdir' command, and the virtual environment is set up within that folder.", 'Specific commands for activating the virtual environment are provided for Windows and Ubuntu, facilitating the process of working with Flask.']}, {'end': 574.828, 'start': 315.607, 'title': 'Installing flask and writing a simple program', 'summary': "Covers the installation of flask using 'pip install flask', writing a simple program to test the installation, and enabling debug mode for automatic server reload and error tracking.", 'duration': 259.221, 'highlights': ["Flask can be installed system-wide using 'pip install flask'.", "A simple program is written to test the Flask installation, involving importing the flask module, defining a root function, and running the application using 'app.run'.", 'Enabling debug mode in Flask allows automatic server reload and provides a debugger to track errors.']}], 'duration': 379.318, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0195510.jpg', 'highlights': ['Virtualenv helps create multiple Python environments to avoid compatibility issues', "Flask can be installed system-wide using 'pip install flask'", 'The only prerequisite for installing Flask is Python 2.6 or higher', 'Enabling debug mode in Flask allows automatic server reload and provides a debugger']}, {'end': 1032.157, 'segs': [{'end': 625.113, 'src': 'embed', 'start': 597.164, 'weight': 0, 'content': [{'end': 603.045, 'text': 'here the root decorator in the flask is basically being used to bind the URL to a function.', 'start': 597.164, 'duration': 5.881}, {'end': 609.247, 'text': 'As you can see hello world is the name of our function and the root decorator is actually used to bind the URL to that.', 'start': 603.665, 'duration': 5.582}, {'end': 614.689, 'text': 'Well, let me just give you a little bit of better clarity, right? So here basically you can see the URL is slash.', 'start': 609.707, 'duration': 4.982}, {'end': 618.61, 'text': 'Hello, right? Well, this rule is actually bound to the hello world function.', 'start': 614.729, 'duration': 3.881}, {'end': 625.113, 'text': 'So as a result, so basically, if the actual user visits localhost or 5000 slash hello,', 'start': 618.99, 'duration': 6.123}], 'summary': 'Using root decorator in flask to bind url to function.', 'duration': 27.949, 'max_score': 597.164, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0597164.jpg'}, {'end': 672.195, 'src': 'embed', 'start': 647.634, 'weight': 2, 'content': [{'end': 655.761, 'text': 'Well, at this point, all we need to know is that we can actually root using an URL, so we can root to a particular function using an actual URL,', 'start': 647.634, 'duration': 8.127}, {'end': 656.462, 'text': "as I've explained.", 'start': 655.761, 'duration': 0.701}, {'end': 660.005, 'text': 'So moving on next up I have for you guys is variable rules.', 'start': 657.022, 'duration': 2.983}, {'end': 663.668, 'text': 'Well, it is possible to build a URL dynamically guys.', 'start': 660.685, 'duration': 2.983}, {'end': 672.195, 'text': 'It is actually done by adding variable parts to the actual rule parameter and this is done by using a variable marked as the variable name.', 'start': 664.028, 'duration': 8.167}], 'summary': 'You can root using a url and build a url dynamically using variable rules.', 'duration': 24.561, 'max_score': 647.634, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0647634.jpg'}, {'end': 760.801, 'src': 'heatmap', 'start': 730.836, 'weight': 1, 'content': [{'end': 734.04, 'text': 'So string in our case is the name which we pick from the dynamic URL.', 'start': 730.836, 'duration': 3.204}, {'end': 735.742, 'text': 'Well, it is as simple as that.', 'start': 734.4, 'duration': 1.342}, {'end': 736.743, 'text': 'So let me go ahead and run it.', 'start': 735.762, 'duration': 0.981}, {'end': 742.67, 'text': "Well, as you can see I've passed my name as the argument here.", 'start': 739.528, 'duration': 3.142}, {'end': 743.871, 'text': 'So it says hello on Earth.', 'start': 742.79, 'duration': 1.081}, {'end': 748.654, 'text': "Well, hello was actually present in the string and the value we're actually getting here is my name guys.", 'start': 743.991, 'duration': 4.663}, {'end': 750.675, 'text': 'So it can be anything for example.', 'start': 749.174, 'duration': 1.501}, {'end': 755.738, 'text': 'So instead of my name we can try at Eureka as soon as we type at Eureka changes to hello at Eureka.', 'start': 750.715, 'duration': 5.023}, {'end': 760.801, 'text': "So it's pretty simple, right? So let me quickly head back to my presentation and we can move on.", 'start': 756.038, 'duration': 4.763}], 'summary': 'A simple example demonstrates passing a name as an argument and getting a personalized greeting message.', 'duration': 29.965, 'max_score': 730.836, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0730836.jpg'}, {'end': 790.182, 'src': 'embed', 'start': 761.423, 'weight': 1, 'content': [{'end': 766.026, 'text': 'Well, however, guys, more rules can actually be constructed using these converters right?', 'start': 761.423, 'duration': 4.603}, {'end': 769.388, 'text': 'So you basically have int, which definitely accepts an integer.', 'start': 766.566, 'duration': 2.822}, {'end': 777.693, 'text': 'We have float which accepts a floating point value and later we have path which actually accepts the slashes which can be used as an actual directory separator character.', 'start': 769.588, 'duration': 8.105}, {'end': 784.397, 'text': 'Well, we can actually check this out better and you can get a better clarity when I show you an example with this right? So check out this code.', 'start': 778.353, 'duration': 6.044}, {'end': 790.182, 'text': 'So here basically most of it is the same but you can check this out, right? So we have intent we have post ID here.', 'start': 784.938, 'duration': 5.244}], 'summary': 'Converters like int, float, and path accept specific data types for constructing rules. example demonstrates usage.', 'duration': 28.759, 'max_score': 761.423, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0761423.jpg'}], 'start': 575.068, 'title': 'Web application routing and url rules', 'summary': 'Delves into concepts of rooting and variable rules in web application frameworks, focusing on the root decorator in flask and the usage of converters like integer, float, and path to handle different variable types, with practical demonstrations and unique url formation capabilities.', 'chapters': [{'end': 760.801, 'start': 575.068, 'title': 'Web application rooting and variable rules', 'summary': 'Discusses the concepts of rooting and variable rules in web application frameworks, such as how the root decorator in flask is used to bind urls to functions and how variable parts can be added to the url rule parameter to dynamically build urls, with examples and practical demonstrations.', 'duration': 185.733, 'highlights': ['The root decorator in Flask is used to bind the URL to a function, such as binding the URL /hello to the hello world function.', 'The add_url_rule function of an application object is available to bind the URL with the function, providing additional flexibility for rooting.', 'Variable parts can be added to the URL rule parameter to dynamically build URLs, with the variable parts passed as keyword arguments to the associated function.']}, {'end': 1032.157, 'start': 761.423, 'title': 'Url rules and variable types', 'summary': 'Discusses the usage of converters such as integer, float, and path in flask to handle different variable types, and explores url rules and url binding functions, highlighting the uniqueness of url formation and the dynamic url building capabilities.', 'duration': 270.734, 'highlights': ['The chapter discusses the usage of converters such as integer, float, and path in Flask to handle different variable types.', 'The chapter explores URL rules and URL binding functions, highlighting the uniqueness of URL formation and the dynamic URL building capabilities.', 'It also demonstrates the dynamic URL building capabilities using URL binding functions in Flask.']}], 'duration': 457.089, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt0575068.jpg', 'highlights': ['The root decorator in Flask binds the URL to a function, e.g., /hello to hello world function.', 'Converters like integer, float, and path in Flask handle different variable types.', 'Variable parts can be added to the URL rule parameter to dynamically build URLs.']}, {'end': 1574.515, 'segs': [{'end': 1079.296, 'src': 'embed', 'start': 1050.874, 'weight': 0, 'content': [{'end': 1053.355, 'text': 'Well, I have for you guys HTTP methods right?', 'start': 1050.874, 'duration': 2.481}, {'end': 1060.179, 'text': 'So an HTTP protocol is basically the foundation of data communication in any particular World Wide Web guys.', 'start': 1053.715, 'duration': 6.464}, {'end': 1065.962, 'text': 'There are different methods of data retrieval from any given URL which are actually defined in a protocol, correct?', 'start': 1060.219, 'duration': 5.743}, {'end': 1071.225, 'text': "Well, let us actually check out a table in which I've actually summarized the different HTTP methods for you guys.", 'start': 1066.302, 'duration': 4.923}, {'end': 1079.296, 'text': 'But as you can see, I have get, which actually sends the data in an unencrypted form to the server, and get is actually very commonly used as well.', 'start': 1071.795, 'duration': 7.501}], 'summary': "Http methods are essential for data communication in the world wide web. 'get' method sends data in unencrypted form and is commonly used.", 'duration': 28.422, 'max_score': 1050.874, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01050874.jpg'}, {'end': 1187.588, 'src': 'heatmap', 'start': 1123.982, 'weight': 2, 'content': [{'end': 1128.984, 'text': 'However, this preference can be altered by providing methods argument to the root decorator.', 'start': 1123.982, 'duration': 5.002}, {'end': 1132.506, 'text': 'Well, in order to demonstrate the use of post method in the URL,', 'start': 1129.345, 'duration': 3.161}, {'end': 1138.37, 'text': 'routing will let us create an HTML form together and later we can use this to actually use the post method,', 'start': 1132.506, 'duration': 5.864}, {'end': 1141.171, 'text': 'which will eventually send the form data to our URL right?', 'start': 1138.37, 'duration': 2.801}, {'end': 1143.853, 'text': "So let's quickly look at an example for better understanding.", 'start': 1141.572, 'duration': 2.281}, {'end': 1145.949, 'text': 'So this is the basic URL.', 'start': 1144.668, 'duration': 1.281}, {'end': 1153.413, 'text': 'guys, as you can check out, will be having a form and our action URL is basically our localhost and a login will be entering our name.', 'start': 1145.949, 'duration': 7.464}, {'end': 1158.896, 'text': 'the input type is text and the variable for our particular cases NM and eventually we have a submit button there as well.', 'start': 1153.413, 'duration': 5.483}, {'end': 1163.699, 'text': 'Well, it is as simple as it gets right? So we need to save this as login dot HTML in this case.', 'start': 1159.176, 'duration': 4.523}, {'end': 1166.361, 'text': 'Well, let us check out the python script next.', 'start': 1164.319, 'duration': 2.042}, {'end': 1172.525, 'text': 'Well, this particular case is pretty much simple, right? So you can see that we using the methods of post and get here as well.', 'start': 1166.861, 'duration': 5.664}, {'end': 1179.329, 'text': 'Then we have actually defined a login function and if the method is actually post method and then we request from our form, which is NM,', 'start': 1172.885, 'duration': 6.444}, {'end': 1183.532, 'text': "as I've previously shown, and if it is success, we're going to actually print the name of the user.", 'start': 1179.329, 'duration': 4.203}, {'end': 1187.588, 'text': 'Well, if it is not a success will actually be getting the argument as you can check out.', 'start': 1184.085, 'duration': 3.503}], 'summary': 'Demonstrates using post method in url routing and handling form data in python script.', 'duration': 63.606, 'max_score': 1123.982, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01123982.jpg'}, {'end': 1251.644, 'src': 'heatmap', 'start': 1201.135, 'weight': 0.767, 'content': [{'end': 1206.438, 'text': 'So now that we actually have two files, we need to make sure that we actually run our development server first,', 'start': 1201.135, 'duration': 5.303}, {'end': 1213.261, 'text': 'which is actually basically the python code, and then open the login.html in our browser, and then we can enter the name of the text right?', 'start': 1206.438, 'duration': 6.823}, {'end': 1218.224, 'text': 'So let me quickly go ahead and run this python script and then we can run the login.html function.', 'start': 1213.682, 'duration': 4.542}, {'end': 1221.776, 'text': 'So this was the particular code that we discussed, right?', 'start': 1219.395, 'duration': 2.381}, {'end': 1227.32, 'text': "So let me quickly go ahead and run it and I'm going to open up my login.html file, which I actually shown you previously, right?", 'start': 1221.937, 'duration': 5.383}, {'end': 1230.942, 'text': 'So let me open up our HTML in a browser and we presented by this right?', 'start': 1227.34, 'duration': 3.602}, {'end': 1232.743, 'text': 'So we have a text box and it says enter name.', 'start': 1230.962, 'duration': 1.781}, {'end': 1235.664, 'text': 'So let me quickly go ahead and enter my name on a road.', 'start': 1233.023, 'duration': 2.641}, {'end': 1243.449, 'text': 'Well, as you can see, as soon as we hit the submit, our form data is actually posted to our URL in the action clause of our form tag correct?', 'start': 1236.465, 'duration': 6.984}, {'end': 1251.644, 'text': 'So, basically, in this case, our localhost slash login is mapped to our login function, as I explained to you well, as you can see,', 'start': 1244.119, 'duration': 7.525}], 'summary': 'Running the python code opens login.html to enter and submit form data.', 'duration': 50.509, 'max_score': 1201.135, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01201135.jpg'}, {'end': 1372.047, 'src': 'embed', 'start': 1346.872, 'weight': 1, 'content': [{'end': 1351.795, 'text': 'Well, a web template system consists of an actual template engine and some kind of data source,', 'start': 1346.872, 'duration': 4.923}, {'end': 1357.879, 'text': 'right and obviously something called as our template processor, since flask uses Jenga to template engine.', 'start': 1351.795, 'duration': 6.084}, {'end': 1364.923, 'text': 'sure, a web template actually contains our HTML syntax, which consists of the placeholders for our variables and expressions right?', 'start': 1357.879, 'duration': 7.044}, {'end': 1366.864, 'text': 'So in this case, into using Python.', 'start': 1365.123, 'duration': 1.741}, {'end': 1368.425, 'text': 'it is Python expressions, obviously.', 'start': 1366.864, 'duration': 1.561}, {'end': 1372.047, 'text': 'Well these values get replaced as soon as the code is actually rendered.', 'start': 1368.905, 'duration': 3.142}], 'summary': 'A web template system with jenga in flask uses python expressions for placeholders, getting replaced upon rendering.', 'duration': 25.175, 'max_score': 1346.872, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01346872.jpg'}, {'end': 1534.349, 'src': 'embed', 'start': 1504.732, 'weight': 4, 'content': [{'end': 1508.115, 'text': 'Well, guys, a web application will often require a static file, right?', 'start': 1504.732, 'duration': 3.383}, {'end': 1509.597, 'text': 'So what is a static file?', 'start': 1508.336, 'duration': 1.261}, {'end': 1514.222, 'text': 'Well, a static file can be anything such as a JavaScript file or a CSS file,', 'start': 1509.897, 'duration': 4.325}, {'end': 1517.445, 'text': 'or something which supports the displaying of a particular web page right?', 'start': 1514.222, 'duration': 3.223}, {'end': 1522.041, 'text': 'but usually the web server is basically configured to serve them for you.', 'start': 1518.098, 'duration': 3.943}, {'end': 1528.225, 'text': 'But during the particular development, these files are actually served from a certain static folder in your package,', 'start': 1522.241, 'duration': 5.984}, {'end': 1534.349, 'text': 'right or even next to your module, and it will be available at the particular header, which is actually slash static,', 'start': 1528.225, 'duration': 6.124}], 'summary': 'Web applications require static files like js or css, served from a static folder or module.', 'duration': 29.617, 'max_score': 1504.732, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01504732.jpg'}], 'start': 1032.617, 'title': 'Http methods, jinja template engine, and static files', 'summary': 'Discusses http methods such as get, head, post, put, and delete in flask routing, usage of jinja2 template engine for dynamic html content, jinja template engine for variables, conditional statements, and looping in html templates, and the significance of static files in web development with examples and key concepts highlighted.', 'chapters': [{'end': 1401.185, 'start': 1032.617, 'title': 'Http methods and flask routing', 'summary': 'Discusses http methods, including get, head, post, put, and delete, and demonstrates the use of the post method in flask routing, as well as the utilization of jinja2 template engine in flask for rendering html content dynamically.', 'duration': 368.568, 'highlights': ['The chapter discusses the different HTTP methods - GET, HEAD, POST, PUT, and DELETE, and their functions in data retrieval and manipulation, providing a comprehensive understanding for beginners.', 'Demonstrates the use of the POST method in Flask routing, including creating an HTML form, sending form data using the POST method to a URL, and processing the form data in the Python script, offering a practical example for better understanding.', 'Explains the utilization of Jinja2 template engine in Flask for rendering HTML content dynamically, simplifying the process of inserting variable data into HTML scripts and enhancing the overall web templating system.']}, {'end': 1574.515, 'start': 1401.565, 'title': 'Jinja template engine and static files in web development', 'summary': 'Covers the usage of jinja template engine for inserting variables, conditional statements, and looping in html templates, as well as the importance of static files in web development, with examples and key concepts highlighted.', 'duration': 172.95, 'highlights': ['Jinja template engine usage for inserting variables, conditional statements, and looping in HTML templates with Python code examples and corresponding HTML output.', 'Importance of static files in web development, including the role of JavaScript and CSS files, their serving from a static folder, and URL generation for static files.']}], 'duration': 541.898, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01032617.jpg', 'highlights': ['The chapter discusses the different HTTP methods - GET, HEAD, POST, PUT, and DELETE, and their functions in data retrieval and manipulation, providing a comprehensive understanding for beginners.', 'Explains the utilization of Jinja2 template engine in Flask for rendering HTML content dynamically, simplifying the process of inserting variable data into HTML scripts and enhancing the overall web templating system.', 'Demonstrates the use of the POST method in Flask routing, including creating an HTML form, sending form data using the POST method to a URL, and processing the form data in the Python script, offering a practical example for better understanding.', 'Jinja template engine usage for inserting variables, conditional statements, and looping in HTML templates with Python code examples and corresponding HTML output.', 'Importance of static files in web development, including the role of JavaScript and CSS files, their serving from a static folder, and URL generation for static files.']}, {'end': 1799.191, 'segs': [{'end': 1622.947, 'src': 'embed', 'start': 1593.567, 'weight': 2, 'content': [{'end': 1596.788, 'text': 'Well, in order to process that particular request data,', 'start': 1593.567, 'duration': 3.221}, {'end': 1604.951, 'text': 'it should actually be imported from our flask module and at this point there are certain important attributes of our request objects that I want you guys to note.', 'start': 1596.788, 'duration': 8.163}, {'end': 1607.192, 'text': 'Well, firstly, we have form.', 'start': 1605.471, 'duration': 1.721}, {'end': 1613.975, 'text': 'well, form is nothing but a dictionary object which consists of the key value pairs of form parameters and their particular associated values.', 'start': 1607.192, 'duration': 6.783}, {'end': 1615.338, 'text': 'We have arguments.', 'start': 1614.617, 'duration': 0.721}, {'end': 1622.947, 'text': 'Well arguments are basically parks the contents of our query string, which is actually the part of the URL after a particular question mark.', 'start': 1615.558, 'duration': 7.389}], 'summary': 'Processing request data involves importing from flask module and noting important attributes like form and arguments.', 'duration': 29.38, 'max_score': 1593.567, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01593567.jpg'}, {'end': 1705.325, 'src': 'embed', 'start': 1646.009, 'weight': 0, 'content': [{'end': 1649.77, 'text': 'So it is basically the data pertaining to that particular uploaded file as well.', 'start': 1646.009, 'duration': 3.761}, {'end': 1655.052, 'text': 'And next we have method will method as the name suggests is nothing but the current request method guys.', 'start': 1649.79, 'duration': 5.262}, {'end': 1656.433, 'text': 'So it is as simple as that.', 'start': 1655.252, 'duration': 1.181}, {'end': 1659.293, 'text': 'So guys as I mentioned next up is cookies.', 'start': 1657.071, 'duration': 2.222}, {'end': 1661.534, 'text': "Well, what's a cookie, guys?", 'start': 1659.873, 'duration': 1.661}, {'end': 1665.677, 'text': "a cookie is basically stored on a client's computer in the form of a text file right?", 'start': 1661.534, 'duration': 4.143}, {'end': 1672.061, 'text': 'So its purpose is to actually remember and track the data pertaining to a particular clients usage,', 'start': 1666.197, 'duration': 5.864}, {'end': 1675.363, 'text': 'for better visitor experience and even site analysis as well.', 'start': 1672.061, 'duration': 3.302}, {'end': 1679.586, 'text': "Well a request object contains a cookies attribute that I've previously mentioned.", 'start': 1675.864, 'duration': 3.722}, {'end': 1686.791, 'text': 'So it is nothing but a dictionary objects of all of the cookie variables and their corresponding values that the client has been transmitting.', 'start': 1680.006, 'duration': 6.785}, {'end': 1693.564, 'text': 'Well in addition to that a cookie also actually stores its expiry time path and domain name of the site as well.', 'start': 1687.332, 'duration': 6.232}, {'end': 1698.353, 'text': 'So it consists of certain details to well in flask cookies are set on the response object.', 'start': 1693.604, 'duration': 4.749}, {'end': 1705.325, 'text': "We'll be using make underscore response function to actually get the response object from the return value of a view function.", 'start': 1698.962, 'duration': 6.363}], 'summary': 'Data, request methods, and cookies in flask for client tracking and site analysis.', 'duration': 59.316, 'max_score': 1646.009, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01646009.jpg'}], 'start': 1574.775, 'title': 'Flask request object and url handling in flask', 'summary': "Introduces the flask request object and its attributes, such as the 'form' attribute. it also covers the concept of urls, cookies, and files in flask, emphasizing the working principle of cookies and their attributes, with practical demonstrations.", 'chapters': [{'end': 1613.975, 'start': 1574.775, 'title': 'Introduction to flask request object', 'summary': "Introduces the flask request object and highlights the importance of its attributes, including the 'form' attribute which contains key-value pairs of form parameters and associated values.", 'duration': 39.2, 'highlights': ["The chapter introduces the flask request object and its important attributes such as the 'form' attribute, which contains key-value pairs of form parameters and associated values.", "The data from a client's page is sent to the server as a global request object, and it needs to be imported from the flask module to process the request data."]}, {'end': 1799.191, 'start': 1614.617, 'title': 'Understanding urls, cookies, and files in flask', 'summary': 'Covers the concept of arguments, cookies, and files in flask, emphasizing the working principle of cookies, their attributes, and the process of setting and reading cookies with practical demonstrations.', 'duration': 184.574, 'highlights': ["Cookies are stored on the client's computer in the form of a text file to remember and track data, facilitating better visitor experience and site analysis.", 'The request object contains a cookies attribute, which is a dictionary of all the cookie variables and their corresponding values transmitted by the client.', 'Setting cookies in Flask involves using the make_response function to obtain the response object and then using the set_cookie function to store the cookie.', 'Reading back cookies is achieved by using the get method on the request.cookies attribute.', 'The chapter explains the concept of arguments, cookies, and files in Flask, providing insights into the working principle of each element and their significance in web development.']}], 'duration': 224.416, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01574775.jpg', 'highlights': ['The request object contains a cookies attribute, a dictionary of all the cookie variables and their corresponding values transmitted by the client.', "Cookies are stored on the client's computer in the form of a text file to remember and track data, facilitating better visitor experience and site analysis.", "The chapter introduces the flask request object and its important attributes such as the 'form' attribute, which contains key-value pairs of form parameters and associated values.", 'Setting cookies in Flask involves using the make_response function to obtain the response object and then using the set_cookie function to store the cookie.']}, {'end': 2148.165, 'segs': [{'end': 1844.582, 'src': 'embed', 'start': 1816.057, 'weight': 1, 'content': [{'end': 1820.318, 'text': "So we'll be talking about the redirect function and all the possible errors that we might come across.", 'start': 1816.057, 'duration': 4.261}, {'end': 1826.69, 'text': 'Well, the flask class actually has a particular redirect function which is used to return a response object right?', 'start': 1820.965, 'duration': 5.725}, {'end': 1828.671, 'text': 'So check out the prototype I have here for you guys.', 'start': 1826.71, 'duration': 1.961}, {'end': 1834.116, 'text': 'So basically in this function, we have three parameters which is our location status code and the response.', 'start': 1829.172, 'duration': 4.944}, {'end': 1838.88, 'text': 'Well, the location parameters, basically the URL where the response should actually be redirected,', 'start': 1834.576, 'duration': 4.304}, {'end': 1844.582, 'text': "and the status code is actually sent to our browser's header and there is a default value for the status code as well.", 'start': 1839.62, 'duration': 4.962}], 'summary': 'Discussion on flask redirect function with 3 parameters: location, status code, and response.', 'duration': 28.525, 'max_score': 1816.057, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01816057.jpg'}, {'end': 1923.03, 'src': 'embed', 'start': 1892.982, 'weight': 3, 'content': [{'end': 1894.342, 'text': '403, forbidden.', 'start': 1892.982, 'duration': 1.36}, {'end': 1898.083, 'text': '404, which is definitely the most famous error out there.', 'start': 1894.342, 'duration': 3.741}, {'end': 1899.484, 'text': 'error. 404 not found right?', 'start': 1898.083, 'duration': 1.401}, {'end': 1902.373, 'text': 'and 406, which is for not acceptable.', 'start': 1900.151, 'duration': 2.222}, {'end': 1905.255, 'text': '415 and supported media type.', 'start': 1902.373, 'duration': 2.882}, {'end': 1907.217, 'text': 'and 429, which actually means too many requests.', 'start': 1905.255, 'duration': 1.962}, {'end': 1914.243, 'text': 'So there is no particular need that you need to actually by heart any of these standard status codes, guys, because again, as the name suggests,', 'start': 1908.038, 'duration': 6.205}, {'end': 1916.444, 'text': 'it is all standardized and this is not changing right?', 'start': 1914.243, 'duration': 2.201}, {'end': 1923.03, 'text': 'So 404 will definitely be not fun until someone decides to change it, and 400 is definitely bad request.', 'start': 1916.805, 'duration': 6.225}], 'summary': 'Explanation of http status codes including 404 and 429, emphasizing standardization.', 'duration': 30.048, 'max_score': 1892.982, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01892982.jpg'}, {'end': 1982.282, 'src': 'embed', 'start': 1948.523, 'weight': 0, 'content': [{'end': 1955.764, 'text': 'well, in addition, flask framework has the support for cookies and session in all the web helpers, like JSON static files and all of that right?', 'start': 1948.523, 'duration': 7.241}, {'end': 1961.801, 'text': 'Well, obviously, this is definitely not enough for the development of a complete, full-fledged web application.', 'start': 1956.388, 'duration': 5.413}, {'end': 1965.674, 'text': 'Well, this is where our flask extensions come into our picture guys.', 'start': 1962.432, 'duration': 3.242}, {'end': 1970.676, 'text': 'Well extensions will give us that extra extensibility to our particular flask framework.', 'start': 1965.914, 'duration': 4.762}, {'end': 1974.778, 'text': 'Well again, as I mentioned there are a large number of flask extensions available guys.', 'start': 1971.116, 'duration': 3.662}, {'end': 1982.282, 'text': 'So, basically, a flask extension is nothing but a python module which adds a particular type of support to the flask application right?', 'start': 1975.258, 'duration': 7.024}], 'summary': 'Flask framework supports cookies, sessions, and extensions for extensibility with a large number of available extensions.', 'duration': 33.759, 'max_score': 1948.523, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01948523.jpg'}, {'end': 2030.122, 'src': 'embed', 'start': 2000.806, 'weight': 4, 'content': [{'end': 2007.568, 'text': 'Well fast mail actually provides our SMTP interface to flask application and SMTP is nothing but simple mail transfer protocol.', 'start': 2000.806, 'duration': 6.762}, {'end': 2009.708, 'text': 'So next up your flask WTF.', 'start': 2007.968, 'duration': 1.74}, {'end': 2016.07, 'text': 'So this basically adds rendering and validation to our WT forms and then next we have SQL alchemy.', 'start': 2010.068, 'duration': 6.002}, {'end': 2020.551, 'text': 'Well, this basically adds our SQL alchemy support to our particular flask application.', 'start': 2016.33, 'duration': 4.221}, {'end': 2023.136, 'text': 'And lastly we have flask Sijax.', 'start': 2021.374, 'duration': 1.762}, {'end': 2030.122, 'text': 'So this particularly an interface for Sijax for Python and jQuery library that makes Ajax easy to use in web applications.', 'start': 2023.376, 'duration': 6.746}], 'summary': 'Fast mail provides smtp interface, flask wtf adds rendering and validation to forms, sql alchemy adds support to flask, and flask sijax is an interface for python and jquery library for easy use of ajax in web applications.', 'duration': 29.316, 'max_score': 2000.806, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt02000806.jpg'}], 'start': 1799.531, 'title': 'Flask web framework features', 'summary': 'Covers flask web framework features including the redirect function with parameters, standard http status codes such as 302, 400, 401, 403, 404, 406, 415, and 429. it also explains the concept of flask extensions like flask mail, flask wtf, sql alchemy, and flask sijax which provide support for smtp, rendering and validation for wt forms, sql alchemy, and an interface for sijax and jquery library. additionally, it covers the basics of flask, including importing, installation, routing, http methods, templates, request object, cookies, and extensions.', 'chapters': [{'end': 1932.52, 'start': 1799.531, 'title': 'Flask redirect function and status codes', 'summary': 'Covers the flask redirect function with three parameters and discusses standard http status codes, emphasizing the default code 302 and mentions common codes like 400, 401, 403, 404, 406, 415, and 429.', 'duration': 132.989, 'highlights': ['The flask class has a redirect function with location, status code, and response parameters, providing a prototype with default status code 302.', 'Discusses standard HTTP status codes including 400 (bad request), 401 (unauthenticated), 403 (forbidden), 404 (not found), 406 (not acceptable), 415 (unsupported media type), and 429 (too many requests).', 'Emphasizes the importance of understanding standard status codes and mentions that it becomes simpler as one progresses in coding.']}, {'end': 2039.17, 'start': 1932.6, 'title': 'Flask extensions', 'summary': 'Explains the concept of flask extensions and their importance in adding functionality to a flask application, highlighting the availability of different extensions such as flask mail, flask wtf, sql alchemy, and flask sijax, which provide support for smtp, rendering and validation for wt forms, sql alchemy, and an interface for sijax and jquery library, respectively.', 'duration': 106.57, 'highlights': ['Flask extensions provide extra extensibility to the flask framework, with a variety of extensions available to add support to the flask application.', 'Flask mail provides SMTP interface to flask application, while flask WTF adds rendering and validation to WT forms, SQL alchemy adds support for SQL alchemy, and flask Sijax is an interface for Sijax and jQuery library for easy Ajax usage in web applications.', 'Each type of extension usually provides extensive documentation about its particular usage, and an extension is actually a python module.', 'The extension registry is a directory of all applicable extensions, and the required extension can be downloaded using the pip utility.', 'The chapter explains that flask extensions provide support for cookies, sessions, JSON static files, and more, with the importance of extensions in developing a complete, full-fledged web application.']}, {'end': 2148.165, 'start': 2039.51, 'title': 'Getting started with flask', 'summary': 'Covers the basics of flask, including importing, installation, routing, http methods, templates, request object, cookies, and extensions. it emphasizes the importance of python knowledge and suggests further learning resources.', 'duration': 108.655, 'highlights': ['The chapter covers the basics of Flask, including importing, installation, routing, HTTP methods, templates, request object, cookies, and extensions.', 'It emphasizes the importance of Python knowledge and suggests further learning resources.', 'The tutorial concludes by encouraging viewers to interact, subscribe, and explore more learning resources.']}], 'duration': 348.634, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/lj4I_CvBnt0/pics/lj4I_CvBnt01799531.jpg', 'highlights': ['Flask extensions provide extra extensibility to the flask framework, with a variety of extensions available to add support to the flask application.', 'The flask class has a redirect function with location, status code, and response parameters, providing a prototype with default status code 302.', 'Covers the basics of Flask, including importing, installation, routing, HTTP methods, templates, request object, cookies, and extensions.', 'Discusses standard HTTP status codes including 400 (bad request), 401 (unauthenticated), 403 (forbidden), 404 (not found), 406 (not acceptable), 415 (unsupported media type), and 429 (too many requests).', 'Flask mail provides SMTP interface to flask application, while flask WTF adds rendering and validation to WT forms, SQL alchemy adds support for SQL alchemy, and flask Sijax is an interface for Sijax and jQuery library for easy Ajax usage in web applications.']}], 'highlights': ['Flask is a web application framework written in Python, developed by Armin Ronacher, with a large open-source community.', 'The tutorial is focused on beginners who are about to start their learning about Flask and web development.', 'The chapter discusses the different HTTP methods - GET, HEAD, POST, PUT, and DELETE, and their functions in data retrieval and manipulation, providing a comprehensive understanding for beginners.', 'Flask extensions provide extra extensibility to the flask framework, with a variety of extensions available to add support to the flask application.', 'The root decorator in Flask binds the URL to a function, e.g., /hello to hello world function.', 'The request object contains a cookies attribute, a dictionary of all the cookie variables and their corresponding values transmitted by the client.', 'Virtualenv helps create multiple Python environments to avoid compatibility issues', 'The session promises to be interactive and simple to follow.', 'Flask is known for its intuitive and beginner-friendly nature, making it easy to use, especially for beginners.', 'The agenda includes introducing Flask, installation, working with it, walking through concepts, and looking at code for each module.']}