title: Exception while Installing Scrapy On Mac OS X Yosemite
body: <p>I am trying to install Scrapy on my Macbook Pro running Yosemite. I tried following the documentation on their site for instillation by running the following command in terminal.</p>
  
  <p><code>pip install Scrapy</code></p>
  
  <p>During instillation the following exception is thrown:</p>
  
  <pre><code>Exception:
      Traceback (most recent call last):
        File "/Library/Python/2.7/site-packages/pip-1.5.6 py2.7.egg/pip/basecommand.py", line 122, in main
          status = self.run(options, args)
        File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/commands/install.py", line 283, in run
  requirement_set.install(install_options, global_options, root=options.root_path)
        File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 1435, in install
  requirement.install(install_options, global_options, *args, **kwargs)
        File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 671, in install
  self.move_wheel_files(self.source_dir, root=root)
        File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/req.py", line 901, in move_wheel_files
  pycompile=self.pycompile,
        File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/wheel.py", line 215, in move_wheel_files
  clobber(source, lib_dir, True)
        File "/Library/Python/2.7/site-packages/pip-1.5.6-py2.7.egg/pip/wheel.py", line 205, in clobber
  os.makedirs(destdir)
        File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/os.py", line 157, in makedirs
  mkdir(name, mode)
      OSError: [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/scrapy'
  </code></pre>
  
  <p>Any thoughts on how to proceed?</p>