Movatterモバイル変換

[0]ホーム
URL:

Skip to content

Navigation Menu

Sign in
Appearance settings

Search code, repositories, users, issues, pull requests...

Provide feedback

We read every piece of feedback, and take your input very seriously.

Saved searches

Use saved searches to filter your results more quickly

 Sign up
Appearance settings

Commitcdecca3

Browse files
committed
Templatize class factories.
This makes mpl_toolkits axes classes picklable (see test_pickle) bygeneralizing the machinery of _picklable_subplot_class_constructor,which would otherwise have had to be reimplemented for each classfactory.
1 parentca6e9dc commitcdecca3

File tree

7 files changed

+76
-101
lines changed

7 files changed

+76
-101
lines changed
Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,6 @@
1+
The private ``matplotlib.axes._subplots._subplot_classes`` dict has been removed
2+
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
3+
4+
Support for passing ``None`` to ``subplot_class_factory`` is deprecated
5+
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
6+
Explicitly pass in the base `~matplotlib.axes.Axes` class instead.

‎lib/matplotlib/axes/_subplots.py‎

Lines changed: 3 additions & 61 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,4 @@
1-
importfunctools
2-
3-
frommatplotlibimport_api
1+
frommatplotlibimport_api,cbook
42
frommatplotlib.axes._axesimportAxes
53
frommatplotlib.gridspecimportGridSpec,SubplotSpec
64

@@ -36,15 +34,6 @@ def __init__(self, fig, *args, **kwargs):
3634
# This will also update the axes position.
3735
self.set_subplotspec(SubplotSpec._from_subplot_args(fig,args))
3836

39-
def__reduce__(self):
40-
# get the first axes class which does not inherit from a subplotbase
41-
axes_class=next(
42-
cforcintype(self).__mro__
43-
ifissubclass(c,Axes)andnotissubclass(c,SubplotBase))
44-
return (_picklable_subplot_class_constructor,
45-
(axes_class,),
46-
self.__getstate__())
47-
4837
@_api.deprecated(
4938
"3.4",alternative="get_subplotspec",
5039
addendum="(get_subplotspec returns a SubplotSpec instance.)")
@@ -169,53 +158,6 @@ def _make_twin_axes(self, *args, **kwargs):
169158
returntwin
170159

171160

172-
# this here to support cartopy which was using a private part of the
173-
# API to register their Axes subclasses.
174-
175-
# In 3.1 this should be changed to a dict subclass that warns on use
176-
# In 3.3 to a dict subclass that raises a useful exception on use
177-
# In 3.4 should be removed
178-
179-
# The slow timeline is to give cartopy enough time to get several
180-
# release out before we break them.
181-
_subplot_classes= {}
182-
183-
184-
@functools.lru_cache(None)
185-
defsubplot_class_factory(axes_class=None):
186-
"""
187-
Make a new class that inherits from `.SubplotBase` and the
188-
given axes_class (which is assumed to be a subclass of `.axes.Axes`).
189-
This is perhaps a little bit roundabout to make a new class on
190-
the fly like this, but it means that a new Subplot class does
191-
not have to be created for every type of Axes.
192-
"""
193-
ifaxes_classisNone:
194-
_api.warn_deprecated(
195-
"3.3",message="Support for passing None to subplot_class_factory "
196-
"is deprecated since %(since)s; explicitly pass the default Axes "
197-
"class instead. This will become an error %(removal)s.")
198-
axes_class=Axes
199-
try:
200-
# Avoid creating two different instances of GeoAxesSubplot...
201-
# Only a temporary backcompat fix. This should be removed in
202-
# 3.4
203-
returnnext(clsforclsinSubplotBase.__subclasses__()
204-
ifcls.__bases__== (SubplotBase,axes_class))
205-
exceptStopIteration:
206-
returntype("%sSubplot"%axes_class.__name__,
207-
(SubplotBase,axes_class),
208-
{'_axes_class':axes_class})
209-
210-
161+
subplot_class_factory=cbook._make_class_factory(
162+
SubplotBase,"{}Subplot","_axes_class")
211163
Subplot=subplot_class_factory(Axes)# Provided for backward compatibility.
212-
213-
214-
def_picklable_subplot_class_constructor(axes_class):
215-
"""
216-
Stub factory that returns an empty instance of the appropriate subplot
217-
class when called with an axes class. This is purely to allow pickling of
218-
Axes and Subplots.
219-
"""
220-
subplot_class=subplot_class_factory(axes_class)
221-
returnsubplot_class.__new__(subplot_class)

‎lib/matplotlib/cbook/__init__.py‎

Lines changed: 50 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -2188,3 +2188,53 @@ def _unikey_or_keysym_to_mplkey(unikey, keysym):
21882188
"next":"pagedown",# Used by tk.
21892189
}.get(key,key)
21902190
returnkey
2191+
2192+
2193+
@functools.lru_cache(None)
2194+
def_make_class_factory(mixin_class,fmt,attr_name=None):
2195+
"""
2196+
Return a function that creates picklable classes inheriting from a mixin.
2197+
2198+
After ::
2199+
2200+
factory = _make_class_factory(FooMixin, fmt, attr_name)
2201+
FooAxes = factory(Axes)
2202+
2203+
``Foo`` is a class that inherits from ``FooMixin`` and ``Axes`` and **is
2204+
picklable** (picklability is what differentiates this from a plain call to
2205+
`type`). Its ``__name__`` is set to ``fmt.format(Axes.__name__)`` and the
2206+
base class is stored in the ``attr_name`` attribute, if not None.
2207+
2208+
Moreover, the return value of ``factory`` is memoized: calls with the same
2209+
``Axes`` class always return the same subclass.
2210+
"""
2211+
2212+
@functools.lru_cache(None)
2213+
defclass_factory(axes_class):
2214+
# The parameter is named "axes_class" for backcompat but is really just
2215+
# a base class; no axes semantics are used.
2216+
base_class=axes_class
2217+
2218+
classsubcls(mixin_class,base_class):
2219+
# Better approximation than __module__ = "matplotlib.cbook".
2220+
__module__=mixin_class.__module__
2221+
2222+
def__reduce__(self):
2223+
return (_picklable_class_constructor,
2224+
(mixin_class,fmt,attr_name,base_class),
2225+
self.__getstate__())
2226+
2227+
subcls.__name__=subcls.__qualname__=fmt.format(base_class.__name__)
2228+
ifattr_nameisnotNone:
2229+
setattr(subcls,attr_name,base_class)
2230+
returnsubcls
2231+
2232+
class_factory.__module__=mixin_class.__module__
2233+
returnclass_factory
2234+
2235+
2236+
def_picklable_class_constructor(mixin_class,fmt,attr_name,base_class):
2237+
"""Internal helper for _make_class_factory."""
2238+
factory=_make_class_factory(mixin_class,fmt,attr_name)
2239+
cls=factory(base_class)
2240+
returncls.__new__(cls)

‎lib/matplotlib/tests/test_axes.py‎

Lines changed: 0 additions & 15 deletions
Original file line numberDiff line numberDiff line change
@@ -6340,21 +6340,6 @@ def test_spines_properbbox_after_zoom():
63406340
np.testing.assert_allclose(bb.get_points(),bb2.get_points(),rtol=1e-6)
63416341

63426342

6343-
deftest_cartopy_backcompat():
6344-
6345-
classDummy(matplotlib.axes.Axes):
6346-
...
6347-
6348-
classDummySubplot(matplotlib.axes.SubplotBase,Dummy):
6349-
_axes_class=Dummy
6350-
6351-
matplotlib.axes._subplots._subplot_classes[Dummy]=DummySubplot
6352-
6353-
FactoryDummySubplot=matplotlib.axes.subplot_class_factory(Dummy)
6354-
6355-
assertDummySubplotisFactoryDummySubplot
6356-
6357-
63586343
deftest_gettightbbox_ignore_nan():
63596344
fig,ax=plt.subplots()
63606345
remove_ticks_and_titles(fig)

‎lib/matplotlib/tests/test_pickle.py‎

Lines changed: 6 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -10,6 +10,7 @@
1010
importmatplotlib.pyplotasplt
1111
importmatplotlib.transformsasmtransforms
1212
importmatplotlib.figureasmfigure
13+
frommpl_toolkits.axes_grid1importparasite_axes
1314

1415

1516
deftest_simple():
@@ -212,3 +213,8 @@ def test_unpickle_canvas():
212213
out.seek(0)
213214
fig2=pickle.load(out)
214215
assertfig2.canvasisnotNone
216+
217+
218+
deftest_mpl_toolkits():
219+
ax=parasite_axes.host_axes([0,0,1,1])
220+
asserttype(pickle.loads(pickle.dumps(ax)))==parasite_axes.HostAxes

‎lib/mpl_toolkits/axes_grid1/parasite_axes.py‎

Lines changed: 8 additions & 17 deletions
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
importfunctools
22

3-
frommatplotlibimport_api
3+
frommatplotlibimport_api,cbook
44
importmatplotlib.artistasmartist
55
importmatplotlib.imageasmimage
66
importmatplotlib.transformsasmtransforms
@@ -95,12 +95,8 @@ def apply_aspect(self, position=None):
9595
# end of aux_transform support
9696

9797

98-
@functools.lru_cache(None)
99-
defparasite_axes_class_factory(axes_class):
100-
returntype("%sParasite"%axes_class.__name__,
101-
(ParasiteAxesBase,axes_class), {})
102-
103-
98+
parasite_axes_class_factory=cbook._make_class_factory(
99+
ParasiteAxesBase,"{}Parasite")
104100
ParasiteAxes=parasite_axes_class_factory(Axes)
105101

106102

@@ -277,7 +273,7 @@ def _add_twin_axes(self, axes_class, **kwargs):
277273
*kwargs* are forwarded to the parasite axes constructor.
278274
"""
279275
ifaxes_classisNone:
280-
axes_class=self._get_base_axes()
276+
axes_class=self._base_axes_class
281277
ax=parasite_axes_class_factory(axes_class)(self,**kwargs)
282278
self.parasites.append(ax)
283279
ax._remove_method=self._remove_any_twin
@@ -304,11 +300,10 @@ def get_tightbbox(self, renderer, call_axes_locator=True,
304300
returnBbox.union([bforbinbbsifb.width!=0orb.height!=0])
305301

306302

307-
@functools.lru_cache(None)
308-
defhost_axes_class_factory(axes_class):
309-
returntype("%sHostAxes"%axes_class.__name__,
310-
(HostAxesBase,axes_class),
311-
{'_get_base_axes':lambdaself:axes_class})
303+
host_axes_class_factory=cbook._make_class_factory(
304+
HostAxesBase,"{}HostAxes","_base_axes_class")
305+
HostAxes=host_axes_class_factory(Axes)
306+
SubplotHost=subplot_class_factory(HostAxes)
312307

313308

314309
defhost_subplot_class_factory(axes_class):
@@ -317,10 +312,6 @@ def host_subplot_class_factory(axes_class):
317312
returnsubplot_host_class
318313

319314

320-
HostAxes=host_axes_class_factory(Axes)
321-
SubplotHost=subplot_class_factory(HostAxes)
322-
323-
324315
defhost_axes(*args,axes_class=Axes,figure=None,**kwargs):
325316
"""
326317
Create axes that can act as a hosts to parasitic axes.

‎lib/mpl_toolkits/axisartist/floating_axes.py‎

Lines changed: 3 additions & 8 deletions
Original file line numberDiff line numberDiff line change
@@ -5,10 +5,9 @@
55
# TODO :
66
# see if tick_iterator method can be simplified by reusing the parent method.
77

8-
importfunctools
9-
108
importnumpyasnp
119

10+
frommatplotlibimportcbook
1211
importmatplotlib.patchesasmpatches
1312
frommatplotlib.pathimportPath
1413
importmatplotlib.axesasmaxes
@@ -351,12 +350,8 @@ def adjust_axes_lim(self):
351350
self.set_ylim(ymin-dy,ymax+dy)
352351

353352

354-
@functools.lru_cache(None)
355-
deffloatingaxes_class_factory(axes_class):
356-
returntype("Floating %s"%axes_class.__name__,
357-
(FloatingAxesBase,axes_class), {})
358-
359-
353+
floatingaxes_class_factory=cbook._make_class_factory(
354+
FloatingAxesBase,"Floating {}")
360355
FloatingAxes=floatingaxes_class_factory(
361356
host_axes_class_factory(axislines.Axes))
362357
FloatingSubplot=maxes.subplot_class_factory(FloatingAxes)

0 commit comments

Comments
 (0)
[8]ページ先頭
©2009-2025 Movatter.jp