<s>
SQLObject	B-Library
is	O
a	O
Python	B-Language
object-relational	B-General_Concept
mapper	I-General_Concept
between	O
a	O
SQL	B-Language
database	I-Language
and	O
Python	B-Language
objects	O
.	O
</s>
<s>
It	O
is	O
experiencing	O
community	O
popularity	O
,	O
and	O
forms	O
a	O
part	O
of	O
many	O
applications	O
(	O
e.g.	O
,	O
TurboGears	B-Language
)	O
.	O
</s>
<s>
It	O
is	O
very	O
similar	O
to	O
Ruby	B-Application
on	I-Application
Rails	I-Application
 '	O
ActiveRecord	O
in	O
operation	O
in	O
that	O
it	O
uses	O
class	O
definitions	O
to	O
form	O
table	O
schemas	O
,	O
and	O
utilizes	O
the	O
language	O
's	O
reflection	O
and	O
dynamism	O
to	O
be	O
useful	O
.	O
</s>
<s>
SQLObject	B-Library
supports	O
a	O
number	O
of	O
common	O
database	O
backends	O
:	O
included	O
in	O
the	O
distribution	O
are	O
MySQL	B-Application
,	O
PostgreSQL	B-Application
,	O
SQLite	B-Language
,	O
Sybase	B-Application
SQL	I-Application
Server	I-Application
,	O
MaxDB	B-Application
,	O
Microsoft	B-Application
SQL	I-Application
Server	I-Application
and	O
Firebird	B-Application
.	O
</s>
<s>
The	O
first	O
version	O
of	O
SQLObject	B-Library
was	O
publicly	O
released	O
in	O
October	O
2002	O
.	O
</s>
