title: Python 3.6 glob include hidden files and folders
body: <p>I try to loop over all files matching a certain extension, including those inside hidden folders. So far I haven't found a way to do this with <code>iglob</code>.
  This works for all folder except those starting with a dot:</p>
  <pre><code>import glob
  for filename in glob.iglob('/path/**/*.ext', recursive=True):
      print(filename)
  </code></pre>
  <p>I have tried to add the dot as an optional character to no avail. I'd really like to use <code>glob</code> instead of residing to <code>os.walk</code>.</p>
  <p>How to include all files/folders, even those starting with <code>.</code>, with <code>glob</code>?</p>