title: Cannot install wxPython on macOS Sierra
body: <p>The package I downloaded was wxPython3.0-osx-cocoa-py2.7.dmg from <a href="https://sourceforge.net/projects/wxpython" rel="nofollow noreferrer">https://sourceforge.net/projects/wxpython</a>. I clicked on the file but got the following message at the end of the failed installation:</p>
  
  <pre><code>The Installer could not install the software because there was no software found to install.
  </code></pre>
  
  <p>I followed the steps by memoselyk on <a href="https://stackoverflow.com/questions/34402303/install-wxpython-in-osx-10-11">Install wxPython in osx 10.11</a> but got the following message after calling the command in step 3 in the Terminal:</p>
  
  <pre><code>pkgbuild: error: output path "wxPython3.0-osx-cocoa-py2.7.pkg" is a directory; specify a path to the package to be written.
  </code></pre>
  
  <p>Does anyone know how to fix this?</p>