Skip to main content

Introduction to flask

Introduction to flask
Hello. Welcome to another session on this platform. If you are new here, please do checkout our previous articles on python programming language and stay excited on this session because we are entering into one of python’s web-based application called flask.

In this article, we are going to see the following

  • What is flask
  • Prequistes
  • Installation of flask in python
  • Some of flask template engine.

What is flask?

Flask is one of python-based framework which is used to create web applications. Flight is a very light web framework. During installation, flask comes with pre-installed modules and functions which are used to backup your own web applications.

Flask is very easy to understand and perfect go-to for beginners and with flask, a web server can run in less than 3 lines of code.

Prequistes

Before learning flask, we recommend the reader to have a basic mastery of python concepts.

Installation of flask 

Before installing flask, we have to checked if python has been installed or. If not, you can download the latest version from the website www.python.org .After installing, you can install with respect to operating systems. 

When installing flask, creating a python virtual environment is optional. But in a case where you want create a python virtual environment, below are the steps to follow.

Step 1: open the command line and type in the following command

Introduction to flask

Step 2: We can now create a new virtual environment into a folder. Below is the command

Introduction to flask

This is the folder that is created

Introduction to flask

Let’s activate the working environment.

Below is the command for the Linux system to activate the working environment

Introduction to flask

Here is the command to use in a windows system

Introduction to flask

After installing the python virtual environment, we can now install flask

Step 1: open the common line or simply type cmd at the windows. In the command line, type in the following “py -m pip installed flask”

Introduction to flask

we have successfully installed flask in our operating system.

When installing flask, we saw jinja 2-3.0.1, werkzeug, coloroma, colorama which are template engine

Some of flask template engine

Werkzeug 

This is a toolkit in WGSI. WGSI is only a calling convention for webservers to forward web requests to web applications which are written in python.

Jinja

This is a template engine for python. It has a very good number of tools for template users. Note, templating is a very important skill needed in web developing.

Testing if flask has been installed in our systems. Open IDLE or python shell and try importing flask package.

Introduction to flask

Since there is no indication of an error, it shows that we have we have successfully installed flask in our system

In this article we have seen the basics of flask, and its template engines. In the next articles we are going to see how to write our first hello world applications in flask. So, stay tune to this platform for more up coming articles. Happy coding guys.

Labels:

Comments

  1. bhanuOctober 19, 2021 at 10:46 PM

    It is very useful for me to learn and understand easily. Thanks for sharing your valuable information
    Python Online Course Training
    Best Python Online Course

    ReplyDelete

Post a Comment

Please do not enter any spam link in the comment box.

Popular posts from this blog

JavaScript Functions

  Hi there, and welcome to another exciting lesson on JavaScript. If this is your first time here, please do well to check out our previous lessons. In the previous lesson, we were discussing JavaScript math methods. It was very intuitive as we got to learn how to use the various math methods. To proceed, we shall be looking at JavaScript functions.  A function in JavaScript like in every other programming language could be defined as a block of code that is written to perform a particular task, and this function is usually invoked or called before it is being implemented. We have been talking about methods throughout the previous lessons right. Do you know that those methods are actually functions? Yes they are functions. You can now have an overview of the importance of functions in every programming language. How do we create a function in JS? To create a function, you follow the format function functionName(Argument) {//Block of code }. Some functions do have a return val...
Post a Comment
Read more

JavaScript Math Methods

Hello everyone, and welcome to another exciting JavaScript lesson. In the last lessons you have been seeing other methods being used in JS (for example, the string methods). We shall go further into exploring other methods. This time, it’s going to be math methods. Do not move an inch because it’s going to be a very exciting. Before we look at what a math method is, let’s have an overview of math objects. A math object in JavaScript is a static built-in object that includes properties and methods used in performing mathematical tasks. Talking about math properties, they have the syntax Math.property . Some examples are Math.E that returns Euler’s number, Math.PI that returns PI, Math.LN2 that returns the natural logarithm of 2, and many others. The various JavaScript methods contained in the math object, thus, make mathematical operations easier and reduce effort as well as time in math-oriented programming. Some JS methods include abs( ), ceil( ), cos( ), sqrt( ), pow( ), log( ) ...
Post a Comment
Read more

How to generate random numbers using NumP1

Hello. Welcome to another edition on this platform. For more better understanding, do checkout our YouTube channel to get the video tutorial. In this article of today, we are going to see how to generate random numbers using any of the following methods: Generating a random number Generating a random float and integer Generating random number arrays Generating random number from an array What is a random number? This is a number which cannot be predicted before its occurrence. This number might not different every time. Programmatically, they are two categories of random numbers:     Pseudo-Random numbers       True Random numbers. Just as programs which are written by programmers are a set of instructions, we must follow an algorithm to generate random numbers. Random numbers which are generated using an algorithm are called Pseudo-Random numbers. To generate a true random number, it is important to get the data from sources such as the keyboards, mou...
Post a Comment
Read more