title: python pip install doesnt work because of several errors (macOS)
body: <p>I installed python yesterday and experimented a bit with it but when I wanted to install some packages using "pip" it, first of all, wasn't installed and when I installed it using the commands on the python.org page it came with several errors (see below) I tried a lot of things even searching in directory's that turned out where not even there.</p>
  
  <p>As you can see I need some help because I can't do this alone :).</p>
  
  <pre><code>Command "python setup.py egg_info" failed with error code 1 in /private/var/folders/1z/_9_qzjrd7gn6g4cnxq4w3n180000gq/T/pip-install-YWT87E/aiohttp/
  
  
  The directory '/Users/NAME/Library/Caches/pip' or its parent directory is not owned by the current user and caching wheels has been disabled. check the permissions and owner of that directory. If executing pip with sudo, you may want sudo's -H flag.
  
  
  OSError: [Errno 2] No such file or directory: '/Library/Python/2.7/site-packages/setuptools-40.0.0-py2.7.egg'
  </code></pre>