title: Access removable SD card
body: <p>I'm using this code to access <code>SD card</code>:</p>
  <pre><code>import os
  from os.path import join
  from jnius import autoclass
  #from android.permissions import request_permissions, Permission
  
  #request_permissions([Permission.WRITE_EXTERNAL_STORAGE,
  #                     Permission.READ_EXTERNAL_STORAGE])
  Environment = autoclass('android.os.Environment')
  self.working_directory = os.path.join(Environment.getExternalStorageDirectory().getAbsolutePath(), &quot;my_app_dir&quot;)
  if not os.path.exists(self.working_directory):
    os.makedirs(self.working_directory)
  </code></pre>
  <p>Howerver I noticed that the data is created only on internal SD card. How can I access removable phone SD card and which permissions do I need (I need to read and write there)? My data is quite large, so I need it to save on removable SD card.</p>