QR Code Generator and Detector using Python

QR codes were developed in the 1990s as a way to provide more information than a standard barcode. QR code was invented by a Japanese engineer Masahiro Hara from automobile manufacturer Denso Wave in the year 1994 to track the movement of car parts. QR codes consist of black squares arranged in a grid (matrix) on a white background and are read by specialized software that is able to extract data from the patterns that are present in the matrix. These codes are capable of containing more information than traditional barcodes, and primarily handle four modes of data: alphanumeric, numeric, binary, and Kanji. QR code means Quick Response Code. Now a days it is used widely in many organizations. QR codes are frequently used to track information about products in a supply chain. QR Code has increased in popularity in the later 2010s with improvement in optical capabilities of mobile phones and their wide adoption.Nowadays, QR codes are being used for wide variety of applications like, make online payments, check hotel menu, share wifi password, obtain price and other details of products etc. QR Codes have become so popular that now every new smartphone comes within built QR code reader.