安装mmcv出错ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for f

在新的电脑上安装mmcv按照以前pip 直接安装的时候报错了，解决方法。 

安装：pip install mmcv -i http://pypi.douban.com/simple --trusted-host pypi.douban.com
Looking in indexes: http://pypi.douban.com/simple
Collecting mmcv
  Downloading http://pypi.doubanio.com/packages/20/24/18a1a702688ba311f57b00ff22e2194488bc36eb90ed80bb0adacfbc066f/mmcv-0.5.9.tar.gz (128 kB)
     |████████████████████████████████| 128 kB 6.4 MB/s
    ERROR: Command errored out with exit status 1:
     command: 'd:\bashsoft\anaconda\envs\torch\python.exe' -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'C:\\Users\\ty\\AppData\\Local\\Temp\\pip-install-xgs29701\\mmcv\\setup.py'"'"'; __file__='"'"'C:\\Users\\ty\\AppData\\Local\\Temp\\pip-install-xgs29701\\mmcv\\setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' egg_info --egg-base 'C:\Users\ty\AppData\Local\Temp\pip-pip-egg-info-n4mk46on'
         cwd: C:\Users\ty\AppData\Local\Temp\pip-install-xgs29701\mmcv\
    Complete output (33 lines):
    WARNING: The repository located at pypi.douban.com is not a trusted or secure host and is being ignored. If this repository is available via HTTPS we recommend you use HTTPS instead, otherwise you may silence this warning and allow it anyway with '--trusted-host pypi.douban.com'.
    ERROR: Could not find a version that satisfies the requirement pytest-runner (from versions: none)
    ERROR: No matching distribution found for pytest-runner
    Traceback (most recent call last):
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\setuptools\installer.py", line 128, in fetch_build_egg
        subprocess.check_call(cmd)
      File "d:\bashsoft\anaconda\envs\torch\lib\subprocess.py", line 291, in check_call
        raise CalledProcessError(retcode, cmd)
    subprocess.CalledProcessError: Command '['d:\\bashsoft\\anaconda\\envs\\torch\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\ty\\AppData\\Local\\Temp\\tmpx7bj00mz', '--quiet', 'pytest-runner']' returned non-zero exit status 1.

    During handling of the above exception, another exception occurred:

    Traceback (most recent call last):
      File "", line 1, in
      File "C:\Users\ty\AppData\Local\Temp\pip-install-xgs29701\mmcv\setup.py", line 172, in
        zip_safe=False)
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\setuptools\__init__.py", line 160, in setup
        _install_setup_requires(attrs)
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\setuptools\__init__.py", line 155, in _install_setup_requires
        dist.fetch_build_eggs(dist.setup_requires)
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\setuptools\dist.py", line 698, in fetch_build_eggs
        replace_conflicting=True,
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\pkg_resources\__init__.py", line 783, in resolve
        replace_conflicting=replace_conflicting
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\pkg_resources\__init__.py", line 1066, in best_match
        return self.obtain(req, installer)
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\pkg_resources\__init__.py", line 1078, in obtain
        return installer(requirement)
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\setuptools\dist.py", line 754, in fetch_build_egg
        return fetch_build_egg(self, req)
      File "d:\bashsoft\anaconda\envs\torch\lib\site-packages\setuptools\installer.py", line 130, in fetch_build_egg
        raise DistutilsError(str(e))
    distutils.errors.DistutilsError: Command '['d:\\bashsoft\\anaconda\\envs\\torch\\python.exe', '-m', 'pip', '--disable-pip-version-check', 'wheel', '--no-deps', '-w', 'C:\\Users\\ty\\AppData\\Local\\Temp\\tmpx7bj00mz', '--quiet', 'pytest-runner']' returned non-zero exit status 1.
    ----------------------------------------
ERROR: Command errored out with exit status 1: python setup.py egg_info Check the logs for full command output.

 

---

解决：pip install  pytest-runner -i http://pypi.douban.com/simple --trusted-host pypi.douban.com

重新：pip install mmcv -i http://pypi.douban.com/simple --trusted-host pypi.douban.com