I do not see some of my files in the Eclipse Navigator view (or Projet Explorer or PyDev Package Explorer).
I tried to go to "Customize View..." and remove all filters. It didn't show *.pickle files, but it did unhide some other file types (.* resources).
Remember to refresh the view: Right-click the background of the Explorer/Navigator view to open a context menu, then choose "Refresh" (F5).
Restarting Eclipse doesn't help.