equivalent of bash "set -x" in Python

[TP]

Hi everybody,

I am interested in having the possibility to print every Python commands in 
a script (for didactic purpose).
So I am looking for some sort of equivalent of bash "set -x".
Does it exist?

Thanks

Julien
-- 
python -c "print ''.join([chr(154 - ord(c)) for c in '*9(9&(18%.\
9&1+,\'Z4(55l4('])"

"When a distinguished but elderly scientist states that something is
possible, he is almost certainly right. When he states that something is
impossible, he is very probably wrong." (first law of AC Clarke)