Home Backend Development Python Tutorial Python generates QR code and encounters problems

Python generates QR code and encounters problems

Dec 03, 2016 am 10:03 AM

Generate QR code through qrcode

The code of the online tutorial can be used

Simple and crude

import qrcode   
img = qrcode.make('http://lizhiyu.iteye.com/blog/2331662')  
img.save('test.png')  
 加参数控制
Python代码  
import qrcode   
qr = qrcode.QRCode(       
    version=1,       
    error_correction=qrcode.constants.ERROR_CORRECT_L,       
    box_size=10,       
    border=4,   
)   
qr.add_data('http://lizhiyu.iteye.com/')   
qr.make(fit=True)    
img = qr.make_image()  
img.save('123.png')
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Parameter meaning:
version: an integer with a value of 1~40, controlling the size of the QR code (the minimum value is 1, which is a 12×12 matrix). If you want the program to determine this automatically, set the value to None and use the fit argument.

error_correction: Control the error correction function of QR code. Possible values ​​are the following 4 constants.
 ERROR_CORRECT_L: About 7% or less of errors can be corrected.
 ERROR_CORRECT_M (default): About 15% or less of errors can be corrected.
 ROR_CORRECT_H: About 30% or less of errors can be corrected.

box_size: Controls the number of pixels contained in each small grid in the QR code.

border: Control the number of grids included in the border (the distance between the QR code and the image border) (the default is 4, which is the minimum value specified by the relevant standards)

Problem 1. Classic error, the file name uses the keyword qrcode.py , just change the file name to aaa.py

AttributeError: 'module' object has no attribute 'make'

Question 2. After modification, the error is still reported as follows, you need to install the PilImage package

Traceback (most recent call last):  
  File "E:\python_test\qrtest\aaa.py", line 3, in <module>  
    img = qrcode.make(&#39;http://www.xgezhang.com/&#39;)  
  File "C:\Python27\lib\site-packages\qrcode\main.py", line 11, in make  
    return qr.make_image()  
  File "C:\Python27\lib\site-packages\qrcode\main.py", line 271, in make_image  
    from qrcode.image.pil import PilImage  
  File "C:\Python27\lib\site-packages\qrcode\image\pil.py", line 8, in <module>  
    import Image  
ImportError: No module named Image  
 问题3.pip install PilImage报错 ,由于用的windows环境写工具,直接到piliage官网下载exe执行,解决
  Could not find a version that satisfies the requirement PilImage (from version
s: )
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No matching distribution found for PilImage


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