Open arpit-dwivedi opened 3 years ago
Just save it as hello.py or something similar. Make sure to not call your application flask.py because this would conflict with Flask itself.
I have made a simple app that shows a html page displaying my name
Flask is an API of Python that allows us to build up web-applications. It was developed by Armin Ronacher. Flask’s framework is more explicit than Django’s framework and is also easier to learn because it has less base code to implement a simple web-Application. A Web-Application Framework or Web Framework is the collection of modules and libraries that helps the developer to write applications without writing the low-level codes such as protocols, thread management, etc. Flask is based on WSGI(Web Server Gateway Interface) toolkit and Jinja2 template engine.
Today I learnt about a web framework called "Flask". It is a micro web framework which can add application features or develop and support web applications. It is based upon Pocco projects such as Werkzeug and Jinja2.
Werkzeug is a toolkit for WSGI applications. Werkzeug can realize software objects for request, response, and utility functions.
Jinja2 is a template engine which combines templates with a data model to produce result documents.
After referring to documentation of Flask and few examples, I was able to create a web application to display "Hello World!!".
Firstly, I had to create a new virtual environment to work on this small demonstration and work on other projects using Flask. Then I was able to install flask using the python package manager(pip). After activating the virtual environment, I used the command "pip install flask
" to install the flask to my virtual environment.
Then I opened the text editor and typed in the code to display "Hello World!!" to the web application or the web page. To execute the code I wrote the following commands:
Flask is a web application framework written in Python. Armin Ronacher, who leads an international group of Python enthusiasts named Pocco, develops it. Flask is based on Werkzeug WSGI toolkit and Jinja template engine. Both are Pocco projects.
The Web Server Gateway(WSG) Interface is a simple calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language
Jinja2 is a template engine written in pure Python. It combines a template with a certain data source to render dynamic web pages.
I tried making a basic web app using flask which prints hello world! in the browser and below are the steps(for Ubuntu users) I took:
python3 -m venv venv (name of virt env)
pip install flask
export FLASK_APP=<name of your python file>
flask run
Hello Sir, here's what I tried creating using Flask: To Do List App
What is Flask? Flask is an API of Python that allows us to build up web-applications.. Flask’s framework is more explicit than Django’s framework and is also easier to learn because it has less base code to implement a simple web-Application. A Web-Application Framework or Web Framework is the collection of modules and libraries that helps the developer to write applications without writing the low-level codes such as protocols, thread management, etc. Flask is based on WSGI(Web Server Gateway Interface) toolkit and Jinja2 template engine. Flask is easy to learn and very easy to deploy ml apps with flask.
But if you want to host like a website, you require some hosting, isn't it?
What is Flask?
What is WSGI?
What is Jinja2?
Note: To install flask on the system, we need to have python 2.7 or higher installed on our system.
Deploy ML model using Flask
python model.py
python app.py
To host the web app , Heroku is one of the free hosting platform , heroku is a container-based cloud Platform as a Service (PaaS).
Flask is a web application framework written in Python.
This means flask provides you with tools, libraries, and technologies that allow you to build a web application.
This web application can be some web pages, a blog, a wiki, or go as big as a web-based calendar application or a commercial website.
WSGI stands for "Web Server Gateway Interface".
It is used to forward requests from a web server (such as Apache or NGINX) to a backend Python web application or framework.
From there, responses are then passed back to the webserver to reply to the requestor.
Jinja is a modern and designer-friendly templating language for Python, modeled after Django’s templates.
It is fast, widely used, and secure with the optional sandboxed template execution environment.
In order to deploy any trained model, you need the following:
Flask is a web framework that provides libraries to build lightweight web applications in python.
Web Server Gateway Interface is a simple calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language. It acts as an interface between web servers and web applications.
Jinja2 is a template engine written in pure Python. It combines a template with a certain data source to render dynamic web pages.
Flask is a web application framework. It is a collection of modules and packages which help the user to create a dynamic web application. It helps in the creation, development, and deployment of web applications. Flask is based on WSGI and Jinja2.
WSGI: (Web Server Gateway Interface) is an interface between web servers and web applications. Jinja2: Jinja2 combines a template with a certain data source to render dynamic web pages.
Today, I install the flask module using 'pip install flask' inside the virtual environment (venv) in python.
I learned to create the 'hello world' of the flask. 👉 First I import flask 👉 create the App object 👉 route the '/' to index() function 👉 define the index() function and return the HTML code to display 'Hello world!' 👉 set the FLASK_APP to the .py file and run the flask to display the HTML content in the browser.
Then, I write some HTML code inside the given code and display it on my browser.(link) 😃 📚
There are many modules or frameworks which allows to build your webpage using python like bottle, django, flask etc. But the real popular ones are Flask. Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. It makes the process of designing a web application simpler. Flask lets us focus on what the users are requesting and what sort of response to give back.
The Web Server Gateway Interface (WSGI) is a simple calling convention for web servers to forward requests to web applications or frameworks written in the Python programming language.
Jinja is a web template engine for the Python programming language. A web templating system combines a template with a certain data source to render dynamic web pages.
I have created a small application using flask to understand how flask works.
I started with the creating a simple web application which display “Hello World!”. Further, I created templates and two HTML pages and connected both the HTML pages with a navigation.
I have explained step by step approach in here
Flask is an API of Python that allows us to build up web-applications. It was developed by Armin Ronacher. Flask’s framework is more explicit than Django’s framework and is also easier to learn because it has less base code to implement a simple web-Application. A Web-Application Framework or Web Framework is the collection of modules and libraries that helps the developer to write applications without writing the low-level codes such as protocols, thread management, etc. Flask is based on WSGI(Web Server Gateway Interface) toolkit and Jinja2 template engine.
Flask is a web framework that provides libraries to build lightweight web applications in python. It is developed by Armin Ronacher who leads an international group of python enthusiasts (POCCO).
It is based on WSGI toolkit and jinja2 template engine.
Flask is considered as a micro framework.
Initially i got some error while installing flask but i search the error on google i was able resolve it then i started working on creating web page i got lot more errors and i dont know why theses errors are coming. I tried allot but still errors coming
Finally done
We need to have python installed to use flask. Once you have python install flask using the following command. pip install Flask
We can use HTTP methods in Flask. HTTP protocol is the foundation of data communication in world wide web. Different methods of data retrieval from specified URL are defined in this protocol. The methods are described down below.
1 GET It is the most common method which can be used to send data in the unencrypted form to the server.
2 HEAD It is similar to the GET but used without the response body.
3 POST It is used to send the form data to the server. The server does not cache the data transmitted using the post method.
4 PUT It is used to replace all the current representation of the target resource with the uploaded content.
5 DELETE It is used to delete all the current representation of the target resource specified in the URL.
By default, the Flask route responds to the GET requests. However, this can be altered by providing methods argument to route() decorator. Python and HTML code is here. https://github.com/SathvickN/Flask_beginner
Flask is a micro web framework written in Python. It is classified as a microframework because it does not require particular tools or libraries. It has no database abstraction layer, form validation, or any other components where pre-existing third-party libraries provide common functions.
Installation Type 'pip install flask' in command prompt
Code Link https://github.com/Ajay0511/DevIncept-AI/tree/main/Task_1_FlaskApp
Flask initial task
D:\Study\Internsala\Devincept\Devincept Intership AI>mkdir app5
D:\Study\Internsala\Devincept\Devincept Intership AI>cd app5`
Created a new environment as venv
py -3 -m venv venv
Activated with the following script
venv\Scripts\activate
Installed the flask package using:
pip install flask
Written the flask code in python using spyder interface as app.py. [https://github.com/jaikushwaha7/Flask-App-Building-Steps/blob/main/app2.py].
Set the flask app by connecting to app2.py and running it.
set FLASK_APP=app2.py
flask run
On running the code and link was provided where the output of the app was displayed in a HTML format.
So Flask a simple python web application framework that allows us to build up web-applications.
What is Flask?
Flask is a web framework, it’s a Python module that lets you develop web applications easily. It’s has a small and easy-to-extend core: it’s a microframework that doesn’t include an ORM (Object Relational Manager) or such features.
It does have many cool features like routing, template engine. It is a WSGI web app framework.
Related course: Python Flask: Create Web Apps with Flask
What is a Web Framework? A Web Application Framework or a simply a Web Framework represents a collection of libraries and modules that enable web application developers to write applications without worrying about low-level details such as protocol, thread management, and so on.
What is Flask? Flask is a web application framework written in Python. It was developed by Armin Ronacher, who led a team of international Python enthusiasts called Poocco. Flask is based on the Werkzeg WSGI toolkit and the Jinja2 template engine. Both are Pocco projects.
WSGI The Web Server Gateway Interface (Web Server Gateway Interface, WSGI) has been used as a standard for Python web application development. WSGI is the specification of a common interface between web servers and web applications.
Werkzeug Werkzeug is a WSGI toolkit that implements requests, response objects, and utility functions. This enables a web frame to be built on it. The Flask framework uses Werkzeg as one of its bases.
jinja2 jinja2 is a popular template engine for Python. A web template system combines a template with a specific data source to render a dynamic web page.
Flask 1 .docx http://127.0.0.1:5000/ shows the output "Hello World"
Flask is a Python framework that is used to build basic webpages. To make a successful webpage one should have knowledge of basic HTML and CSS. So I tried to make a basic webpage that works on my localhost.
The installation of a Flask should be carried in a virtual environment.