<s>
Matplotlib	B-Language
is	O
a	O
plotting	B-Operating_System
library	B-Library
for	O
the	O
Python	B-Language
programming	I-Language
language	I-Language
and	O
its	O
numerical	O
mathematics	O
extension	O
NumPy	B-Application
.	O
</s>
<s>
It	O
provides	O
an	O
object-oriented	B-Language
API	B-General_Concept
for	O
embedding	O
plots	O
into	O
applications	O
using	O
general-purpose	O
GUI	B-Library
toolkits	I-Library
like	O
Tkinter	B-Language
,	O
wxPython	B-Language
,	O
Qt	B-Language
,	O
or	O
GTK	B-Application
.	O
</s>
<s>
There	O
is	O
also	O
a	O
procedural	B-Application
"	O
pylab	B-Language
"	O
interface	O
based	O
on	O
a	O
state	B-Architecture
machine	I-Architecture
(	O
like	O
OpenGL	B-Application
)	O
,	O
designed	O
to	O
closely	O
resemble	O
that	O
of	O
MATLAB	B-Language
,	O
though	O
its	O
use	O
is	O
discouraged	O
.	O
</s>
<s>
SciPy	B-Application
makes	O
use	O
of	O
Matplotlib	B-Language
.	O
</s>
<s>
Matplotlib	B-Language
was	O
originally	O
written	O
by	O
John	O
D	O
.	O
Hunter	O
.	O
</s>
<s>
Since	O
then	O
it	O
has	O
had	O
an	O
active	O
development	O
community	O
and	O
is	O
distributed	O
under	O
a	O
BSD-style	B-Operating_System
license	I-Operating_System
.	O
</s>
<s>
Michael	O
Droettboom	O
was	O
nominated	O
as	O
matplotlib	B-Language
's	O
lead	O
developer	O
shortly	O
before	O
John	O
Hunter	O
's	O
death	O
in	O
August	O
2012	O
and	O
was	O
further	O
joined	O
by	O
Thomas	O
Caswell	O
.	O
</s>
<s>
Matplotlib	B-Language
is	O
a	O
NumFOCUS	O
fiscally	O
sponsored	O
project	O
.	O
</s>
<s>
Matplotlib	B-Language
2.0.x	O
supports	O
Python	B-Language
versions	O
2.7	O
through	O
3.10	O
.	O
</s>
<s>
Python3	B-Language
support	O
started	O
with	O
Matplotlib	B-Language
1.2	O
.	O
</s>
<s>
Matplotlib	B-Language
1.4	O
is	O
the	O
last	O
version	O
to	O
support	O
Python	B-Language
2.6	O
.	O
</s>
<s>
Matplotlib	B-Language
has	O
pledged	O
not	O
to	O
support	O
Python2	O
past	O
2020	O
by	O
signing	O
the	O
Python3	B-Language
Statement	O
.	O
</s>
<s>
Pyplot	O
is	O
a	O
Matplotlib	B-Language
module	O
that	O
provides	O
a	O
MATLAB-like	O
interface	O
.	O
</s>
<s>
Matplotlib	B-Language
is	O
designed	O
to	O
be	O
as	O
usable	O
as	O
MATLAB	B-Language
,	O
with	O
the	O
ability	O
to	O
use	O
Python	B-Language
,	O
and	O
the	O
advantage	O
of	O
being	O
free	O
and	O
open-source	O
.	O
</s>
<s>
Several	O
toolkits	O
are	O
available	O
which	O
extend	O
Matplotlib	B-Language
functionality	O
.	O
</s>
<s>
Some	O
are	O
separate	O
downloads	O
,	O
others	O
ship	O
with	O
the	O
Matplotlib	B-Language
source	O
code	O
but	O
have	O
external	O
dependencies	O
.	O
</s>
<s>
Cartopy	O
:	O
a	O
mapping	O
library	B-Library
featuring	O
object-oriented	B-Language
map	B-Application
projection	I-Application
definitions	O
,	O
and	O
arbitrary	O
point	O
,	O
line	O
,	O
polygon	B-General_Concept
and	O
image	O
transformation	O
capabilities	O
.	O
</s>
<s>
Natgrid	O
:	O
interface	O
to	O
the	O
natgrid	O
library	B-Library
for	O
gridding	O
irregularly	O
spaced	O
data	O
.	O
</s>
