Short video about list comprehension in Python. Little bit late — sorry. Three minutes is definitely not enough, and this time pressure is responsible for jamming 
For curious — I’ve recorded this using simplescreenrecorder. System: Debian, Python 3.3.2 + ipython 0.13.2. Ah, the audio comes through Samson GoMic — highly recommended (or this is considered product placement?). So technically — I nailed it