我在安装zBar时出错

Question

安装zbar模块时出错。我认为这个错误与授权有关。我怎样才能解决它

我写了pip install zbar

C:\Users\emiry>pip install zbar
Collecting zbar
  Using cached zbar-0.10.zip (31 kB)
Building wheels for collected packages: zbar
  Building wheel for zbar (setup.py) ... error
  ERROR: Command errored out with exit status 1:
   command: 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"'; __file__='"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d 'C:\Users\emiry\AppData\Local\Temp\pip-wheel-spwm2dxx'
       cwd: C:\Users\emiry\AppData\Local\Temp\pip-install-6i6ygv4e\zbar_700c50e90f604c658bec553c6d356553\
  Complete output (5 lines):
  running bdist_wheel
  running build
  running build_ext
  building 'zbar' extension
  error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
  ----------------------------------------
  ERROR: Failed building wheel for zbar
  Running setup.py clean for zbar
Failed to build zbar
Installing collected packages: zbar
    Running setup.py install for zbar ... error
    ERROR: Command errored out with exit status 1:
     command: 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"'; __file__='"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\emiry\AppData\Local\Temp\pip-record-7pxl18hx\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\Include\zbar'
         cwd: C:\Users\emiry\AppData\Local\Temp\pip-install-6i6ygv4e\zbar_700c50e90f604c658bec553c6d356553\
    Complete output (5 lines):
    running install
    running build
    running build_ext
    building 'zbar' extension
    error: Microsoft Visual C++ 14.0 or greater is required. Get it with "Microsoft C++ Build Tools": https://visualstudio.microsoft.com/visual-cpp-build-tools/
    ----------------------------------------
ERROR: Command errored out with exit status 1: 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe' -u -c 'import io, os, sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"'; __file__='"'"'C:\\Users\\emiry\\AppData\\Local\\Temp\\pip-install-6i6ygv4e\\zbar_700c50e90f604c658bec553c6d356553\\setup.py'"'"';f = getattr(tokenize, '"'"'open'"'"', open)(__file__) if os.path.exists(__file__) else io.StringIO('"'"'from setuptools import setup; setup()'"'"');code = f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' install --record 'C:\Users\emiry\AppData\Local\Temp\pip-record-7pxl18hx\install-record.txt' --single-version-externally-managed --compile --install-headers 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\Include\zbar' Check the logs for full command output.
WARNING: You are using pip version 21.2.3; however, version 21.2.4 is available.
You should consider upgrading via the 'C:\Users\emiry\AppData\Local\Programs\Python\Python39\python.exe -m pip install --upgrade pip' command.

Answer 1

您需要安装Studio的C++ VisualBug构建工具。这是链接：-https://visualstudio.microsoft.com/vs/older-downloads/