Python uses the QRCode module to generate a QR code instance.

Python uses the QRCode module to generate a QR code instance.

Python uses the QRCode module to generate a QR code

QRCode Official Website

Https://pypi.python.org/pypi/qrcode/5.1

Introduction

Python-qrcode is a third-party module used to generate QR code images. It depends on the PIL module and qrcode library.

Simple usage

import qrcode img = qrcode.make('hello, qrcode')img.save('test.png') 

Advanced usage

import qrcode qr = qrcode.QRCode(     version=1,     error_correction=qrcode.constants.ERROR_CORRECT_L,     box_size=10,     border=4, ) qr.add_data('hello, qrcode') qr.make(fit=True) img = qr.make_image()img.save('123.png')

Parameter description:

Version: The value ranges from 1 ~ The integer of 40, which controls the size of the QR code (the minimum value is 1, which is a 12 × 12 matrix ). If you want the program to determine automatically, set the value to None and use the fit parameter.

Error_correction: controls the error correction function of the QR code. You can set the following four constants.
ERROR_CORRECT_L: errors of about 7% or fewer can be corrected.
ERROR_CORRECT_M (default): errors of about 15% or fewer can be corrected.
ROR_CORRECT_H: errors of about 30% or fewer can be corrected.

Box_size: controls the number of workers contained in each small grid in the QR code.

Border: number of cells contained in the control border (the distance between the QR code and the Image Boundary) (default value: 4, which is the minimum value specified by relevant standards)

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