Python

Hello guys, I am a Java developer and have been writing about Java for a long time. Initially I wasn’t interested in Python but eventually, I had to join the Python wagon when I started exploring Machine Learning and Data Science. There is no doubt that Python is the #1 programming language and it’s heavily used in areas like automation ...

In this tutorial, we will represent data in a heatmap form using a Python library called seaborn. This library is used to visualize data based on Matplotlib. You will learn what is a heatmap, how to create it, how to change its colors, adjust its font size, and much more, so let’s get started. What is a heatmap? The heatmap ...

After being voted as the best programming language in the year 2018, Python still continues rising up the charts and currently ranks as the 3rd best programming language just after Java and C, as per the index published by Tiobe. With the increasing use of this language, the popularity of test automation frameworks based on Python is increasing as well. ...

In this tutorial, you will learn how you can process images in Python using the OpenCV library. OpenCV is a free open source library used in real-time image processing. It’s used to process images, videos, and even live streams, but in this tutorial, we will process images only as a first step. Before getting started, let’s install OpenCV. Install OpenCV ...

Pandas is an open source Python library which provides data analysis and manipulation in Python programming. It’s a very promising library in data representation, filtering, and statistical programming. The most important piece in pandas is the DataFrame where you store and play with the data. In this tutorial, you will learn what is the DataFrame, how to create it from ...

In this tutorial, you will learn how to download files from the web using different Python modules. You will download regular files, web pages, YouTube videos, Google drive files, Amazon S3, and other sources. Also, you will learn how to overcome many challenges that you may counter such as downloading files that redirects,  downloading large files, multithreaded download, and other ...

In this tutorial, the focus will be on one of the best frameworks for web crawling called Scrapy. You will learn the basics of Scrapy and how to create your first web crawler or spider. Furthermore, the tutorial gives a demonstration of extracting and storing the scraped data. Scrapy, a web framework written in Python that is used to crawl through ...

NumPy is a Python Library/ module which is used for scientific calculations in Python programming. In this tutorial, you will learn how to perform many operations on NumPy arrays such as adding, removing, sorting, and manipulating elements in many ways. NumPy provides a multidimensional array object and other derived arrays such as masked arrays or masked multidimensional arrays. Why using ...

Open Policy Agent[1] is a promising, light weight and very generic policy engine to govern authorization is any type of domain. I found this comparion[2] very attractive in evaluating OPA for a project I am currently working on, where they demonstrate how OPA can cater same functionality defined in RBAC, RBAC with Seperation of Duty, ABAC and XACML.   Here are ...