Mac OS X :
brew install zbar
安装这个Python包装器;使用第二种形式安装命令行脚本的依赖项:
pip install pyzbar
我尝试了这些步骤,但仍然收到以下错误
File "/Users/something/opt/anaconda3/envs/muenv/lib/python3.8/site-packages/pyzbar/wrapper.py", line 136, in zbar_function
return prototype((fname, load_libzbar()))
File "/Users/something/opt/anaconda3/envs/muenv/lib/python3.8/site-packages/pyzbar/wrapper.py", line 115, in load_libzbar
libzbar, dependencies = zbar_library.load()
File "/Users/something/opt/anaconda3/envs/muenv/lib/python3.8/site-packages/pyzbar/zbar_library.py", line 65, in load
raise ImportError('Unable to find zbar shared library')
ImportError: Unable to find zbar shared library
这对我有用。尝试一下。
mkdir ~/lib
ln -s $(brew --prefix zbar)/lib/libzbar.dylib ~/lib/libzbar.dylib
包使用函数
libzbar
加载 ctypes.util.find_library()
,该函数查找环境变量 DYLD_LIBRARY_PATH
。因此,您可以将以下代码添加到您的~/.bash_profile
:
if [[ -z $DYLD_LIBRARY_PATH ]]; then
export DYLD_LIBRARY_PATH=$(brew --prefix zbar)/lib
else
export DYLD_LIBRARY_PATH=$(brew --prefix zbar)/lib:$DYLD_LIBRARY_PATH
fi
对于其他库,
ctypes.util.find_library()
可能会检查 LD_LIBRARY_PATH
。