How to Fix werkzeug.exceptions.BadRequestKeyError / 400 Bad Request in Flask

The werkzeug.exceptions.BadRequestKeyError or 400 Bad Request error is a very common error that you will encounter in Flask when working with forms. In this video I will talk about why it occurs and how to fix it.

Get the code here: https://prettyprinted.com/l/4jn

Subscribe: https://www.youtube.com/channel/UC-QDfvrRIDB6F0bIO4I4HkQ

#flask #python

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How to Fix werkzeug.exceptions.BadRequestKeyError / 400 Bad Request in Flask

The werkzeug.exceptions.BadRequestKeyError or 400 Bad Request error is a very common error that you will encounter in Flask when working with forms. In this video I will talk about why it occurs and how to fix it.

Get the code here: https://prettyprinted.com/l/4jn

Subscribe: https://www.youtube.com/channel/UC-QDfvrRIDB6F0bIO4I4HkQ

#flask #python

Web development with python and flask: part 3

In this part of the series, we will be taking a look at the HTTP protocol, request/response objects, their application in flask, properties, and their related methods. We will take steps to import it from the flask module, use its properties, and look at some of its related usages

Web applications implement one of the internet data and message exchange architectures that is based on HTTP protocol. The HTTP protocol is just one of the many application layers of TCP/IP. The TCP/IP(Transmission Control Protocol/Internet Protocol) is used as a standard for transmitting data over networks. In simple terms, HTTP has rules, properties, and methods that implement the transmission of messages in form of hyperlinks over the communication structures enforced by the TCP/IP.

.You must know that the internet is based on connected physical computational devices over either copper wires, fiber optical cables, wireless, and other media to form data transmission and retrieval systems across the globe. Trust me, that is a whole career field in itself and we are not interested in its elaborate ramblings in this post.

#flask #web developemnt #flask #flask requests #webdevelopment

Download a Flask template ready to plug in your business logic

Let’s assume after lots of hard work you have your machine learning model running the way it should. This model could be one which responds to a user’s request to classify a tweet sentiment or identify objects in an image or recommend a product or some other algorithm unique to your needs. You would now like to quickly deploy this model. The article below is an explanation of the template that I have created to get you up and running quickly.

#flask-framework #flask-python-appengine #flask-sqlalchemy #marshmallow #flask #programming

Requests Python 3 - Download Files (Free books) with requests-html and requests Python 3

In this video, we will use requests python 3 and requests-html to download pdf files from Springer’s Website.
Recently, I came across a list of 408 free books available for download from Springer’s website.
So, I have created this script in which I have used requests python and requests-html to download the files.

https://youtu.be/UMuO2_BVFwY

#request-html #requests #requests-python #webscrapping #springer

Exceptions and Exception Handling in C#

C## and the .NET CLR use exceptions to show that an error condition has arisen during program execution. C## programs are under constant threat of running into some sort of problem. As a program’s complexity grows, the probability that something odd would happen during its execution also gets higher.

In this blog, we will go through the basics of Exception and Exception handling. We will also look at how we can achieve exception handling using try, catch, and finally blocks and how to create your own custom exceptions.

Exception

The errors which we are getting at the run time of the application is called an exception.

If any exception is coming into our application then the application is abnormally terminated. The Application is not considered as a good application if any exception is coming and it is not handled.

Every time when we are developing an application and it got successfully build without any errors. Then this happens

For that, it is good practice to use exception handling.

#c# #exception #exception handling #.net #exception handling best practices #c++