Efficient python programming...

[Shagshag13]

 I'm looking for any state of art, optimizing techniques, tips, that a
python beginner couldn't know by itself, but should learn and
would be aware to write "efficient and good looking"python's code...

 (not the kind of thing which made you an obfuscated python nerd,
but that "map" should be preferred to "for in loop" if possible, that
dictionary are very well optimized, etc.)

Thanks,

s13.