<s>
Canto	B-Device
is	O
a	O
terminal	O
based	O
aggregator	O
for	O
online	O
news	O
.	O
</s>
<s>
It	O
supports	O
all	O
major	O
news	O
formats	O
(	O
RSS/RDF	O
and	O
Atom	B-Application
)	O
,	O
as	O
well	O
as	O
importing	O
from	O
and	O
exporting	O
to	O
OPML	B-Application
.	O
</s>
<s>
The	O
news	O
content	O
is	O
downloadable	O
and	O
as	O
such	O
Canto	B-Device
also	O
has	O
limited	O
podcasting	O
support	O
.	O
</s>
<s>
Canto	B-Device
intends	O
to	O
be	O
extremely	O
flexible	O
and	O
extensible	O
,	O
allowing	O
the	O
full	O
use	O
of	O
the	O
Python	B-Language
programming	I-Language
language	I-Language
in	O
its	O
configuration	O
.	O
</s>
<s>
Canto	B-Device
is	O
a	O
Python	B-Language
rewrite	O
of	O
NRSS	O
(	O
a	O
C-based	O
news	O
reader	O
that	O
has	O
since	O
been	O
deprecated	O
)	O
,	O
starting	O
in	O
early	O
2008	O
.	O
</s>
<s>
The	O
name	O
canto	B-Device
was	O
chosen	O
to	O
describe	O
the	O
divisions	B-Device
apparent	O
in	O
the	O
default	O
interface	O
,	O
like	O
the	O
divisions	B-Device
of	O
a	O
long	O
poem	O
.	O
</s>
<s>
Canto	B-Device
's	O
main	O
appeal	O
is	O
that	O
all	O
of	O
the	O
content	O
is	O
displayed	O
in	O
a	O
single	O
list	O
that	O
is	O
fully	O
visible	O
by	O
default	O
.	O
</s>
<s>
Configuration	O
is	O
done	O
using	O
Python	B-Language
,	O
allowing	O
users	O
to	O
alter	O
Canto	B-Device
with	O
custom	O
classes	O
and	O
functions	O
.	O
</s>
<s>
Sorting	O
and	O
filtering	O
is	O
done	O
in	O
the	O
same	O
manner	O
as	O
typical	O
Python	B-Language
lists	O
,	O
and	O
new	O
themes	O
and	O
styles	O
can	O
just	O
override	O
part	O
of	O
the	O
default	O
renderer	O
class	O
.	O
</s>
<s>
Canto	B-Device
fully	O
supports	O
using	O
Unicode/UTF	O
-8	O
in	O
feed	O
items	O
,	O
and	O
for	O
user	O
input	O
.	O
</s>
<s>
Lastly	O
,	O
Canto	B-Device
's	O
information	O
is	O
updated	O
by	O
a	O
separate	O
process	O
,	O
canto-fetch	O
,	O
which	O
can	O
either	O
run	O
as	O
a	O
daemon	B-Operating_System
or	O
as	O
a	O
cron-job	O
.	O
</s>
