安装dlib

Question

我在这之后为python 3安装dlib，因为pip不工作，而且我是从源文件(setup.py)安装它的。但是，出现了一个错误：

-- Building for: NMake Makefiles
CMake Error at CMakeLists.txt:5 (message):



  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


  You must use Visual Studio to build a python extension on windows.  If you
  are getting this error it means you have not installed Visual C++.  Note
  that there are many flavors of Visual Studio, like Visual Studio for C#
  development.  You need to install Visual Studio for C++.


  !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!




-- Configuring incomplete, errors occurred!
Traceback (most recent call last):
  File "C:\Users\TIN\Downloads\dlib\dlib-19.22.0\setup.py", line 222, in <module>
    setup(
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\__init__.py", line 153, in setup
    return distutils.core.setup(**attrs)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\core.py", line 148, in setup
    dist.run_commands()
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\dist.py", line 966, in run_commands
    self.run_command(cmd)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\command\install.py", line 67, in run
    self.do_egg_install()
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\command\install.py", line 109, in do_egg_install
    self.run_command('bdist_egg')
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\command\bdist_egg.py", line 164, in run
    cmd = self.call_command('install_lib', warn_dir=0)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\command\bdist_egg.py", line 150, in call_command
    self.run_command(cmdname)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\site-packages\setuptools\command\install_lib.py", line 11, in run
    self.build()
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\command\install_lib.py", line 107, in build
    self.run_command('build_ext')
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\cmd.py", line 313, in run_command
    self.distribution.run_command(command)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\distutils\dist.py", line 985, in run_command
    cmd_obj.run()
  File "C:\Users\TIN\Downloads\dlib\dlib-19.22.0\setup.py", line 134, in run
    self.build_extension(ext)
  File "C:\Users\TIN\Downloads\dlib\dlib-19.22.0\setup.py", line 171, in build_extension
    subprocess.check_call(cmake_setup, cwd=build_folder)
  File "C:\Users\TIN\AppData\Local\Programs\Python\Python39\lib\subprocess.py", line 373, in check_call
    raise CalledProcessError(retcode, cmd)
subprocess.CalledProcessError: Command '['cmake', 'C:\\Users\\TIN\\Downloads\\dlib\\dlib-19.22.0\\tools\\python', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY=C:\\Users\\TIN\\Downloads\\dlib\\dlib-19.22.0\\build\\lib.win-amd64-3.9', '-DPYTHON_EXECUTABLE=C:\\Users\\TIN\\AppData\\Local\\Programs\\Python\\Python39\\python.exe', '-DCMAKE_LIBRARY_OUTPUT_DIRECTORY_RELEASE=C:\\Users\\TIN\\Downloads\\dlib\\dlib-19.22.0\\build\\lib.win-amd64-3.9', '-A', 'x64']' returned non-zero exit status 1.

如何解决这个问题？另外，我使用的是Python 3.9.4。而且，我似乎需要安装Visual for C++。但我在哪能找到呢？

Answer 1

许多二进制文件依赖于Visual 2015、2017和2019的MicrosoftVisualPython3可再发行版。

因此，请尝试使用以下代码来解决这个问题

pip install --upgrade setuptools

如果你解决不了这个问题，

然后您可以尝试使用这个链接最新支持的VisualC++下载来安装这个问题。