<s>
Jython	B-Language
is	O
an	O
implementation	O
of	O
the	O
Python	B-Language
programming	I-Language
language	I-Language
designed	O
to	O
run	O
on	O
the	O
Java	B-Language
platform	O
.	O
</s>
<s>
The	O
implementation	O
was	O
formerly	O
known	O
as	O
JPython	B-Language
until	O
1999	O
.	O
</s>
<s>
Jython	B-Language
programs	O
can	O
import	O
and	O
use	O
any	O
Java	B-Language
class	O
.	O
</s>
<s>
Except	O
for	O
some	O
standard	O
modules	O
,	O
Jython	B-Language
programs	O
use	O
Java	B-Language
classes	O
instead	O
of	O
Python	B-Language
modules	O
.	O
</s>
<s>
Jython	B-Language
includes	O
almost	O
all	O
of	O
the	O
modules	O
in	O
the	O
standard	O
Python	B-Language
programming	I-Language
language	I-Language
distribution	O
,	O
lacking	O
only	O
some	O
of	O
the	O
modules	O
implemented	O
originally	O
in	O
C	B-Language
.	O
For	O
example	O
,	O
a	O
user	O
interface	O
in	O
Jython	B-Language
could	O
be	O
written	O
with	O
Swing	B-Language
,	O
AWT	B-Language
or	O
SWT	B-Application
.	O
</s>
<s>
Jython	B-Language
compiles	O
Python	B-Language
source	O
code	O
to	O
Java	B-Language
bytecode	I-Language
(	O
an	O
intermediate	O
language	O
)	O
either	O
on	O
demand	O
or	O
statically	O
.	O
</s>
<s>
Jython	B-Language
was	O
initially	O
created	O
in	O
late	O
1997	O
to	O
replace	O
C	B-Language
with	O
Java	B-Language
for	O
performance-intensive	O
code	O
accessed	O
by	O
Python	B-Language
programs	I-Language
,	O
moving	O
to	O
SourceForge	B-Application
in	O
October	O
2000	O
.	O
</s>
<s>
The	O
Python	B-Application
Software	I-Application
Foundation	I-Application
awarded	O
a	O
grant	O
in	O
January	O
2005	O
.	O
</s>
<s>
Jython	B-Language
2.5	O
was	O
released	O
in	O
June	O
2009	O
.	O
</s>
<s>
The	O
most	O
recent	O
release	O
is	O
Jython	B-Language
2.7.3	O
.	O
</s>
<s>
It	O
was	O
released	O
on	O
10	O
September	O
2020	O
and	O
is	O
compatible	O
with	O
Python	B-Language
2.7	O
.	O
</s>
<s>
Python	B-Language
3	O
compatible	O
changes	O
are	O
planned	O
in	O
Jython	B-Language
3	O
Roadmap	O
.	O
</s>
<s>
Although	O
Jython	B-Language
implements	O
the	O
Python	B-Language
language	I-Language
specification	O
,	O
it	O
has	O
some	O
differences	O
and	O
incompatibilities	O
with	O
CPython	B-Language
,	O
which	O
is	O
the	O
reference	O
implementation	O
of	O
Python	B-Language
.	O
</s>
<s>
From	O
version	O
2.2	O
on	O
,	O
Jython	B-Language
(	O
including	O
the	O
standard	O
library	O
)	O
is	O
released	O
under	O
the	O
Python	B-License
Software	I-License
Foundation	I-License
License	I-License
(	O
v2	O
)	O
.	O
</s>
<s>
Older	O
versions	O
are	O
covered	O
by	O
the	O
Jython	B-Language
2.0	O
,	O
2.1	O
license	O
and	O
the	O
JPython	B-Language
1.1.x	O
Software	O
License	O
.	O
</s>
<s>
The	O
command	B-Application
line	I-Application
interpreter	B-Application
is	O
available	O
under	O
the	O
Apache	O
Software	O
License	O
.	O
</s>
