</A></H2>

<H3><A NAME = "Python">Python</A></H3>

Python seems to be the most serious language among those three languages. 
It provides efficient weak reference dictionary which makes it possible to implement object cache and do not make programmer to explicitly call resetHash method.<P>

Python provides long integer type (64-bit integer) but it has not separate boolean type (boolean values are treated 
as integers).<P>

In Python instance variables are not declared at all and are attached to to the objec