问题
Win 10, x64, Python 2.7, Anaconda
There's at least 2 posts about this here. Neither solve my problem.
I'm trying to read QR codes so have installed zbar after downloading the wheel using pip install zbar-0.10-cp27-none-win_amd64.whl
I had tried installing with pip install zbar with no luck (yes I installed the appropriate version of VS).
As as far as the conda comand line is concerned zbar has been installed.
So I tried to run the following program....
import pyqrcode
from qrtools import QR
Q = pyqrcode.create('Q')
Q.png('Q.png', scale=55)#, module_color=[0, 0, 0, 128], background=[0xff, 0xff, 0xcc])
Q.show(wait=1.2, scale=10, module_color=(0, 0, 0, 255), background=(255, 255, 255, 255), quiet_zone=4)
D = QR(filename='Q.png')
D.data_to_string()
The resulting traceback...
Traceback (most recent call last):
File "<ipython-input-10-ecc93a89ee73>", line 1, in <module>
runfile('C:/Users/Technical/Moving_Targets/barcode-scanner/QR_code_example.py', wdir='C:/Users/Technical/Moving_Targets/barcode-scanner')
File "C:\ProgramData\Anaconda2\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 668, in runfile
execfile(filename, namespace)
File "C:\ProgramData\Anaconda2\lib\site-packages\spyder_kernels\customize\spydercustomize.py", line 93, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)
File "C:/Users/Technical/Moving_Targets/barcode-scanner/QR_code_example.py", line 9, in <module>
from qrtools import QR
File "C:\ProgramData\Anaconda2\lib\site-packages\qrtools\__init__.py", line 4, in <module>
from qrtools.qrtools import *
File "C:\ProgramData\Anaconda2\lib\site-packages\qrtools\qrtools.py", line 28, in <module>
import zbar
ImportError: DLL load failed: The specified module could not be found.
So I have a look for the DLL and discover that zbar is missing from the site-packages folder where I was expecting it
The distribution information is there but no actual package!
Where could it be?
Additional note: I have a version of zbar that is an independent stand alone executable (that will only run from the command line & wont let me use os.system() or subprocess.call() for some unknown reason) it works just fine.
来源：https://stackoverflow.com/questions/54294217/zbar-missing-from-python-site-pakages-after-install