title: 'Operation Not Permitted' on Mac Terminal when trying to install python packages
body: <p>I'm trying to install a package on python with the following lines of code:</p>
  <pre><code>git clone https://github.com/dartoon/decomprofile
  cd decomprofile
  python setup.py develop
  </code></pre>
  <p>It goes well until the last step, which returns the error message:</p>
  <pre><code>error: can't create or remove files in install directory
  
  The following error occurred while trying to add or remove files in the
  installation directory:
  
      [Errno 13] Permission denied: '/Library/Python/2.7/site-packages/test-easy-install-53720.write-test'
  
  The installation directory you specified (via --install-dir, --prefix, or
  the distutils default setting) was:
  
      /Library/Python/2.7/site-packages/
  
  Perhaps your account does not have write access to this directory?  If the
  installation directory is a system-owned directory, you may need to sign in
  as the administrator or &quot;root&quot; account.  If you do not have administrative
  access to this machine, you may wish to choose a different installation
  directory, preferably one that is listed in your PYTHONPATH environment
  variable.
  
  For information on other options, you may wish to consult the
  documentation at:
  
    https://setuptools.readthedocs.io/en/latest/easy_install.html
  
  Please make the appropriate changes for your system and try again.
  </code></pre>
  <p>I'm administrator on my computer, so I don't know why I would not have permission to change the files.  I've made sure that I have Full Disk Access, as well.  I have tried the command</p>
  <pre><code>sudo easy_install
  </code></pre>
  <p>but that is also not working.  I am on Mac OS Catalina working in Terminal app.  I recently updated to anaconda3 and use Python 3.8, so I am unsure why the directory says 2.7-- can I delete this directory?</p>