I'm completely new to Python and PyCharm and I cannot figure out why PyCharm doesn't auto-completes very simple cases such as:

```
import pickle

pickle.dum[control+space or control+shift+space results nothing here]

```

I have PyCharm 2.6.2 and Python 2.7.1. What's wrong?

**Add:**

I'm on Mac OS 10.7.3