<s>
wxPython	B-Language
is	O
a	O
wrapper	B-Library
for	O
the	O
cross-platform	B-Operating_System
GUI	B-Application
API	B-Application
(	O
often	O
referred	O
to	O
as	O
a	O
"	O
toolkit	B-Library
"	O
)	O
wxWidgets	B-Language
(	O
which	O
is	O
written	O
in	O
C++	B-Language
)	O
for	O
the	O
Python	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
It	O
is	O
one	O
of	O
the	O
alternatives	O
to	O
Tkinter	B-Language
.	O
</s>
<s>
It	O
is	O
implemented	O
as	O
a	O
Python	B-Language
extension	O
module	O
(	O
native	B-Language
code	I-Language
)	O
.	O
</s>
<s>
In	O
1995	O
,	O
Robin	O
Dunn	O
needed	O
a	O
GUI	B-Application
application	O
to	O
be	O
deployed	O
on	O
HP-UX	B-Application
systems	O
but	O
also	O
run	O
Windows	B-Application
3.1	I-Application
within	O
short	O
time	O
frame	O
.	O
</s>
<s>
He	O
needed	O
a	O
cross-platform	B-Operating_System
solution	O
.	O
</s>
<s>
While	O
evaluating	O
free	O
and	O
commercial	O
solutions	O
,	O
he	O
ran	O
across	O
Python	B-Language
bindings	O
on	O
the	O
wxWidgets	B-Language
toolkit	B-Library
webpage	O
(	O
known	O
as	O
wxWindows	B-Language
at	O
the	O
time	O
)	O
.	O
</s>
<s>
This	O
was	O
Dunn	O
's	O
introduction	O
to	O
Python	B-Language
.	O
</s>
<s>
Together	O
with	O
Harri	O
Pasanen	O
and	O
Edward	O
Zimmerman	O
he	O
developed	B-Application
those	O
initial	O
bindings	O
into	O
wxPython	B-Language
0.2	O
.	O
</s>
<s>
In	O
August	O
1998	O
,	O
version	O
0.3	O
of	O
wxPython	B-Language
was	O
released	O
.	O
</s>
<s>
It	O
was	O
built	O
for	O
wxWidgets	B-Language
2.0	O
and	O
ran	O
on	O
Win32	O
,	O
with	O
a	O
wxGTK	O
version	O
in	O
the	O
works	O
.	O
</s>
<s>
The	O
first	O
versions	O
of	O
the	O
wrapper	B-Library
were	O
created	O
by	O
hand	O
.	O
</s>
<s>
However	O
,	O
the	O
code	O
became	O
difficult	O
to	O
maintain	O
and	O
keep	O
synchronized	O
with	O
wxWidgets	B-Language
releases	O
.	O
</s>
<s>
By	O
1997	O
,	O
versions	O
were	O
created	O
with	O
SWIG	B-Application
,	O
greatly	O
decreasing	O
the	O
amount	O
of	O
work	O
to	O
update	O
the	O
wrapper	B-Library
.	O
</s>
<s>
In	O
2010	O
,	O
the	O
Project	O
Phoenix	O
began	O
;	O
an	O
effort	O
to	O
clean	O
up	O
the	O
wxPython	B-Language
implementation	O
and	O
in	O
the	O
process	O
make	O
it	O
compatible	O
with	O
Python	B-Language
3	O
.	O
</s>
<s>
The	O
project	O
is	O
a	O
new	O
implementation	O
of	O
wxPython	B-Language
,	O
focused	O
on	O
improving	O
speed	O
,	O
maintainability	O
and	O
extensibility	O
.	O
</s>
<s>
Like	O
previous	O
version	O
of	O
wxPython	B-Language
,	O
it	O
wraps	O
the	O
wxWidgets	B-Language
C++	B-Language
toolkit	B-Library
and	O
provides	O
access	O
to	O
the	O
user	O
interface	O
portions	O
of	O
the	O
wxWidgets	B-Language
API	B-Application
.	O
</s>
<s>
With	O
the	O
release	O
of	O
4.0.0a1	O
wxPython	B-Language
in	O
2017	O
,	O
the	O
Project	O
Phoenix	O
version	O
became	O
the	O
official	O
version	O
.	O
</s>
<s>
wxPython	B-Language
4.x	O
is	O
the	O
current	O
version	O
being	O
developed	B-Application
as	O
of	O
June	O
2022	O
.	O
</s>
<s>
wxPython	B-Language
enables	O
Python	B-Language
to	O
be	O
used	O
for	O
cross-platform	B-Operating_System
GUI	B-Application
applications	O
requiring	O
very	O
little	O
,	O
if	O
any	O
,	O
platform-specific	O
code	O
.	O
</s>
<s>
This	O
is	O
a	O
simple	O
"	O
Hello	O
world	O
"	O
module	O
,	O
depicting	O
the	O
creation	O
of	O
the	O
two	O
main	O
objects	O
in	O
wxPython	B-Language
(	O
the	O
main	O
window	O
object	O
and	O
the	O
application	O
object	O
)	O
,	O
followed	O
by	O
passing	O
the	O
control	O
to	O
the	O
event-driven	O
system	O
(	O
by	O
calling	O
MainLoop( )	O
)	O
which	O
manages	O
the	O
user-interactive	O
part	O
of	O
the	O
program	O
.	O
</s>
<s>
This	O
is	O
another	O
example	O
of	O
wxPython	B-Language
Close	O
Button	O
with	O
wxPython	B-Language
GUI	B-Application
display	O
show	O
in	O
Windows	O
10	O
operation	O
system	O
.	O
</s>
<s>
Being	O
a	O
wrapper	B-Library
,	O
wxPython	B-Language
uses	O
the	O
same	O
free	B-License
software	I-License
licence	I-License
used	O
by	O
wxWidgets	B-Language
(	O
wxWindows	B-Language
License	O
)	O
—	O
which	O
is	O
approved	O
by	O
Free	B-Operating_System
Software	I-Operating_System
Foundation	I-Operating_System
and	O
Open	O
Source	O
Initiative	O
.	O
</s>
