What is an LRU Cache? For any software product, application performance is one of the key quality attributes. One common technique used for improving performance of a software application is to use memory cache. A memory cache puts frequently used application data in the fast RAM of the computing device. Reading or writing data to […]

Python’s turtle package can be used to draw various shapes on a canvas. Turtle allows the programmer to move a pen in a specified direction by specifying its heading and distance. Turtle has no built-in primitive for drawing a rectangle or square. However it is easy to create a function to draw a rectangle(or square) […]

Python contains an interesting drawing module called Turtle. This module is available as part of the standard python distribution. Turtle consists of a number of graphics operations modelled after pen drawing. In this article I will show you how we can use the turtle commands to draw circle based shapes. How to Draw a Simple […]

Tkinter is one of the most popular GUI toolkits available for python. It is available as part of the standard python installation. Hence you can use this package without installing any additional modules. Tkinter is a powerful GUI library and you can use it to build full fledged user interfaces or build simple desktop games. […]

Python has a very powerful library called requests for initiating http requests programmatically. You can use requests for downloading files hosted over http protocol. Run the following command to install requests python library. This assumes that you already have python 3 installed on your system. pip3 install requests You may need to prefix the above […]