I installed spyder3 through miniconda3 on my win10 PC. Autocompletion works perfectly in the Ipython console pane but not in the editor pane. In the editor pane it only list par
(Spyder maintainer here) It's a true and sad reality, but our Editor can't show the same completions that are available to the IPython console.
I explained in this other StackOverflow answer why that's the case. Basically, it's not our fault, it's just a limitation of the code completion libraries we use in the Editor (Rope and Jedi).