debugger console doesn't auto complete on mac OS 10

Hi guys,

I have mac OS 10 (new to mac env..) and installed PyCharm 2017.2 community version.

Starting debugging, app stops at the breakpoint, i go to the debugger console in pycharm and i try to auto-complete a defined variable (like aaa=(1,2) prior to the breakpoint of course) but it says "no suggestions" although the tuple does exist in memory as when I type the full name it shows it as a python object... if it's a class and i press the "." it also doesn't autocomplete its members but irrelevant suggestions like "if" "ifn"... it shows it for all objects.. probably doesn't recognise the object at all.... I tried all the help in the web: setting autocomplete config in pycharm, clearing the runtime cache... any help would be appreciated as i don't want to look for the object members every time....

many thx