在Python 3.6中使用qrcode创建批次的QR码作为图像

Question

我在Windows 10机器上运行Python 3.6，并希望直接从python创建批量的QR码作为PNG。我将使用qrcode创建100到200个单独QR码的批次。这些图像将在邮件合并中用于创建单个文档。我可以使用qr.exe脚本创建单个图像，但无法在Python中创建QR码PNG。

在阅读qrcode的文档时，我遇到了一些麻烦，让“Pure Python PNG”工作（https://github.com/lincolnloop/python-qrcode/blob/master/README.rst）。

具体地，当尝试使用PIP在命令提示

PIP安装的git + GIT中安装pymaging：//github.com/ojii/pymaging.git#egg=pymaging PIP安装GIT中+ GIT中： //github.com/ojii/pymaging-png.git#egg=pymaging-png

我得到了以下报告

收集来自混帐混帐+ pymaging：//githumb.com/ojii/pymaging.git ＃egg = pymaging 将git：//github.com/ojii/pymaging.git复制到c：\ Users \ B \ AppDataq \ Local \ Temp \ pip-build-jioh63js \ pymaging

然后我得到以下错误

错误[WinError 2]系统无法找到指定的文件在执行命令GIT中克隆-q GIT中：//github.com/ojii/pymaging.git C：\用户\ B \ AppDataq \ Local \ Temp \ pip-build-jioh63js \ pymaging 找不到命令'git'

我看过临时文件夹，看不到任何pip *文件夹。你有关于如何安装pymaging的建议吗？

- 更新 -

一旦安装git的命令可以从Git的bash的运行和安装pymaging。

Answer 1

用于在Python 3中将批量QR码创建为图像的文档有点苗条，特别是编写实际图像文件（see qrcode 5.3 documentation）的最后步骤，所以我想分享一些我修改过的代码并开始工作。 Python 2.7的原始代码来自prasopensource's blog。以下是我为Python 3.6创建的脚本。

import qrcode, os.path 
print('What is the name of the file containing the data for the QR codes?') 
fname = input().strip() 
file = open(fname, "r") 
print() 
for x in file: 
    x = x.rstrip() 
    qr = qrcode.QRCode(version=1, error_correction=qrcode.constants.ERROR_CORRECT_L,box_size=10,border=4,) 
    qr.add_data(x) 
    qr.make(fit=True) 
    img = qr.make_image() 
    file_name = x + ".png" 
    print('Saving %s' % file_name) 
    image_file = open(file_name, "w") 
    img.save(file_name) 
    image_file.close() 
file.close() 

# INFORMATION ABOUT QRCode SETTINGS 
#The version parameter is an integer from 1 to 40 that controls the size of the QR Code (the smallest, version 1, is a 21x21 matrix). Set to None and use the fit parameter when making the code to determine this automatically. 

#The error_correction parameter controls the error correction used for the QR Code. The following four constants are made available on the qrcode package: 
#ERROR_CORRECT_L 
#About 7% or less errors can be corrected. 
#ERROR_CORRECT_M (default) 
#About 15% or less errors can be corrected. 
#ERROR_CORRECT_Q 
#About 25% or less errors can be corrected. 
#ERROR_CORRECT_H. 
#About 30% or less errors can be corrected. 

#The box_size parameter controls how many pixels each “box” of the QR code is. 

#The border parameter controls how many boxes thick the border should be (the default is 4, which is the minimum according to the specs).