<s>
Zenity	B-Application
is	O
free	B-Application
software	I-Application
and	O
a	O
cross-platform	B-Operating_System
program	O
that	O
allows	O
the	O
execution	O
of	O
GTK	B-Application
dialog	B-Device
boxes	O
in	O
command-line	O
and	O
shell	B-Language
scripts	I-Language
.	O
</s>
<s>
Like	O
tools	O
such	O
as	O
whiptail	B-Language
and	O
dialog	B-Device
,	O
Zenity	B-Application
allows	O
easy	O
creation	O
of	O
GUIs	O
,	O
though	O
it	O
has	O
fewer	O
features	O
than	O
more	O
complex	O
GUI-creation	O
tools	O
.	O
</s>
<s>
,	O
Zenity	B-Application
is	O
available	O
for	O
Linux	O
,	O
BSD	O
and	O
Windows	O
.	O
</s>
<s>
A	O
Zenity	B-Application
port	O
to	O
Mac	O
OS	O
X	O
is	O
available	O
in	O
MacPorts	B-Application
and	O
Homebrew	B-Application
.	O
</s>
<s>
Zenity	B-Application
does	O
not	O
possess	O
any	O
built-in	O
scripting	O
capabilities	O
and	O
it	O
must	O
,	O
therefore	O
,	O
rely	O
on	O
an	O
interpreter	B-Application
for	O
processing	O
.	O
</s>
<s>
To	O
create	O
a	O
script	O
that	O
runs	O
on	O
more	O
than	O
one	O
platform	O
without	O
extensive	O
modifications	O
,	O
it	O
would	O
be	O
best	O
to	O
use	O
an	O
interpreter	B-Application
that	O
is	O
available	O
on	O
the	O
widest	O
range	O
of	O
operating	O
systems	O
.	O
</s>
<s>
One	O
option	O
is	O
Python	B-Language
in	O
combination	O
with	O
the	O
PyZenity	O
library	O
.	O
</s>
