.complete() returns only %builtin methods (fix included)

[gigaj0ule]

We discovered an odd bug today where completer.complete(str) only returns %builtin methods, and not all the other things that 'tab' reveals in the terminal.

The above picture has no built ins, but using 'x' as the string returns:

In [39]: terminal_object.get_ipython().complete('x')[1]                                                                       
Out[39]: ['%xdel', '%xmode']

But, if you use the internal methods directly, you can get the correct behavior:

list(map(lambda x: x.name, terminal_object.get_ipython().Completer._complete(cursor_line=0, cursor_pos=len('string'), full_text='string')[3]))

The above line returns everything 'tab' normally would in the terminal for the string 'string'

Edit: This one will include function ()'s too

(lambda string: list(map(lambda x: x.name + '()' if x.type == 'function' else x.name, get_ipython().Completer._complete(cursor_line=0, cursor_pos=len(string), full_text=string)[3])))(' ')