flask Archives - onlinetutorialspoint

Flask – How to Upgrade/Downgrade Database Migrations?

chandrashekhar — Sun, 18 Jul 2021 05:15:59 +0000

The relational databases are very good at storing the structured content into the database. To make this happen we need to provide the structured database schema to the ORM. But the problem here is while developing, it happens to change the schema very frequently, so to make this transition simple, several good tools in the

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Flask – How to install/setup Flask SQLAlchemy ?

chandrashekhar — Sat, 17 Jul 2021 11:17:13 +0000

In this tutorial, we are going to see how to install Flask SQLAlchemy. SQLAlchemy: The SQLAlchamy is an object-relational mapper for ORM, it's basically a database client. This kind of database client allows us to work on python classes and objects, and it automatically translates all the operations that we do with these into database

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Flask – How to create URLs or Links ?

chandrashekhar — Fri, 09 Jul 2021 08:07:18 +0000

Here we are going to see one good practice to create links or URLs in the Flask framework. Problem: Login Profile The above two links Login and Profile are generated using plain old HTML script, writing links in this way is not really a good idea, if you ever need to organize links

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Python – Flask Login Form Example

chandrashekhar — Thu, 08 Jul 2021 06:05:51 +0000

In this tutorial, we are going to build a simple Flask login Form, it's going to be a simple demonstration of Flask web flow and field validations. Versions: Python 3.8.5 Flask 2.0.1 Max OS X Pre-Requisites: Install Flask Flask-WTF: The support for web form handling that comes with Flask is a bare minimum, so to

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Flask – Jinja Template inheritance Example

chandrashekhar — Sat, 03 Jul 2021 07:49:10 +0000

In this tutorial, we are going to see one of the distinctive features of jinja templates called jinja template inheritance. Jinja template inheritance: The idea of template inheritance is that we are going to design a base template that contains all the common features that belong to all the pages, and then we are going

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Flask – Jinja Templates Example

chandrashekhar — Fri, 02 Jul 2021 05:00:49 +0000

Flask templates can do much more than replacing the placeholders that we have done in the previous tutorial, In this tutorial, we are going to see the most powerful features of the Flask template engine. Flask Jinja Templates: The template engine used by Flask is a very powerful package that jinja that's being installed as

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Flask Simple HTML Templates Example

chandrashekhar — Wed, 30 Jun 2021 17:09:48 +0000

In this tutorial, we are going to see the Flask simple HTML Templates, this is going to be something the extension work of the previous HelloWorld example. Flask HTML Templates: In the previous example, we return the Hello, World! string message from the server, but in reality, the server sends an HTML response to a

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Hello World Flask Example

chandrashekhar — Wed, 30 Jun 2021 04:40:47 +0000

In this tutorial, we are going to see the basic Hello World Flask example. It typically contains Flask initial configurations and setup to make the Flask application runnable. Before going further make sure, you have already installed the Flask in your machine. Versions: Python 3.8.5 Flask 2.0.1 Hello World Flask Example: Create a new directory

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Python – How to install the Flask framework?

chandrashekhar — Tue, 29 Jun 2021 07:01:08 +0000

Flask is a micro web framework written in Python that widely used. Here the Micro doesn't mean that your entire web application fits into a single python file, nor it's lacking in functionality compared to other web frameworks. The intention of saying the micro framework is, it aims the core platform as simple and extendable.

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