无法在Mac上安装对python3.7的请求

Question

当我在Mac OS上运行pip3安装请求时，我得到了：

 Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /simple/requests/
  Retrying (Retry(total=3, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /simple/requests/
  Retrying (Retry(total=2, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /simple/requests/
  Retrying (Retry(total=1, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /simple/requests/
  Retrying (Retry(total=0, connect=None, read=None, redirect=None, status=None)) after connection broken by 'ProtocolError('Connection aborted.', OSError(22, 'Invalid argument'))': /simple/requests/
  Could not find a version that satisfies the requirement requests (from versions: )
No matching distribution found for requests

pip install requests for python 2.7效果很好