matplotlib · QuLogic · May 26, 2019 · May 25, 2019
diff --git a/lib/matplotlib/_layoutbox.py b/lib/matplotlib/_layoutbox.py
@@ -43,7 +43,7 @@ def get_renderer(fig):
     return renderer
 
 
-class LayoutBox(object):
+class LayoutBox:
     """
     Basic rectangle representation using kiwi solver variables
     """

diff --git a/lib/matplotlib/_pylab_helpers.py b/lib/matplotlib/_pylab_helpers.py
@@ -6,7 +6,7 @@
 import gc
 
 
-class Gcf(object):
+class Gcf:
     """
     Singleton to manage a set of integer-numbered figures.
 

diff --git a/lib/matplotlib/afm.py b/lib/matplotlib/afm.py
@@ -393,7 +393,7 @@ def _parse_afm(fh):
     return header, cmetrics_by_ascii, cmetrics_by_name, kernpairs, composites
 
 
-class AFM(object):
+class AFM:
 
     def __init__(self, fh):
         """Parse the AFM file in file object *fh*."""

diff --git a/lib/matplotlib/animation.py b/lib/matplotlib/animation.py
@@ -93,7 +93,7 @@ def correct_roundoff(x, dpi, n):
 
 
 # A registry for available MovieWriter classes
-class MovieWriterRegistry(object):
+class MovieWriterRegistry:
     '''Registry of available writer classes by human readable name.'''
     def __init__(self):
         self.avail = dict()
@@ -576,7 +576,7 @@ def finish(self):
 
 # Base class of ffmpeg information. Has the config keys and the common set
 # of arguments that controls the *output* side of things.
-class FFMpegBase(object):
+class FFMpegBase:
     '''Mixin class for FFMpeg output.
 
     To be useful this must be multiply-inherited from with a
@@ -696,7 +696,7 @@ class AVConvFileWriter(AVConvBase, FFMpegFileWriter):
 
 
 # Base class for animated GIFs with ImageMagick
-class ImageMagickBase(object):
+class ImageMagickBase:
     '''Mixin class for ImageMagick output.
 
     To be useful this must be multiply-inherited from with a
@@ -880,7 +880,7 @@ def finish(self):
                                              **mode_dict))
 
 
-class Animation(object):
+class Animation:
     '''This class wraps the creation of an animation using matplotlib.
 
     It is only a base class which should be subclassed to provide

diff --git a/lib/matplotlib/artist.py b/lib/matplotlib/artist.py
@@ -54,7 +54,7 @@ def _stale_axes_callback(self, val):
 _XYPair = namedtuple("_XYPair", "x y")
 
 
-class Artist(object):
+class Artist:
     """
     Abstract base class for objects that render into a FigureCanvas.
 
@@ -1168,7 +1168,7 @@ def mouseover(self, val):
                 ax._mouseover_set.discard(self)
 
 
-class ArtistInspector(object):
+class ArtistInspector:
     """
     A helper class to inspect an `~matplotlib.artist.Artist` and return
     information about its settable properties and their current values.

diff --git a/lib/matplotlib/axes/_base.py b/lib/matplotlib/axes/_base.py
@@ -114,7 +114,7 @@ def _process_plot_format(fmt):
     return linestyle, marker, color
 
 
-class _process_plot_var_args(object):
+class _process_plot_var_args:
     """
     Process variable length arguments to the plot command, so that
     plot commands like the following are supported::

diff --git a/lib/matplotlib/axes/_subplots.py b/lib/matplotlib/axes/_subplots.py
@@ -8,7 +8,7 @@
 import matplotlib._layoutbox as layoutbox
 
 
-class SubplotBase(object):
+class SubplotBase:
     """
     Base class for subplots, which are :class:`Axes` instances with
     additional methods to facilitate generating and manipulating a set

diff --git a/lib/matplotlib/axis.py b/lib/matplotlib/axis.py
@@ -628,7 +628,7 @@ def get_view_interval(self):
         return self.axes.viewLim.intervaly
 
 
-class Ticker(object):
+class Ticker:
     """
     A container for the objects defining tick position and format.
 
@@ -671,7 +671,7 @@ def formatter(self, formatter):
         self._formatter = formatter
 
 
-class _LazyTickList(object):
+class _LazyTickList:
     """
     A descriptor for lazy instantiation of tick lists.
 

diff --git a/lib/matplotlib/backend_bases.py b/lib/matplotlib/backend_bases.py
@@ -127,7 +127,7 @@ def get_registered_canvas_class(format):
     return backend_class
 
 
-class RendererBase(object):
+class RendererBase:
     """An abstract base class to handle drawing/rendering operations.
 
     The following methods must be implemented in the backend for full
@@ -712,7 +712,7 @@ def stop_filter(self, filter_func):
         """
 
 
-class GraphicsContextBase(object):
+class GraphicsContextBase:
     """An abstract base class that provides color, line styles, etc."""
 
     def __init__(self):
@@ -1032,7 +1032,7 @@ def set_sketch_params(self, scale=None, length=None, randomness=None):
             else (scale, length or 128., randomness or 16.))
 
 
-class TimerBase(object):
+class TimerBase:
     """
     A base class for providing timer events, useful for things animations.
     Backends need to implement a few specific methods in order to use their
@@ -1203,7 +1203,7 @@ def _on_timer(self):
             self.stop()
 
 
-class Event(object):
+class Event:
     """
     A matplotlib event.  Attach additional attributes as defined in
     :meth:`FigureCanvasBase.mpl_connect`.  The following attributes
@@ -1552,7 +1552,7 @@ def _draw(renderer): raise Done(renderer)
             return figure._cachedRenderer
 
 
-class FigureCanvasBase(object):
+class FigureCanvasBase:
     """
     The canvas the figure renders into.
 
@@ -2466,7 +2466,7 @@ class NonGuiException(Exception):
     pass
 
 
-class FigureManagerBase(object):
+class FigureManagerBase:
     """
     Helper class for pyplot mode, wraps everything up into a neat bundle
 
@@ -2567,7 +2567,7 @@ def set_window_title(self, title):
 cursors = tools.cursors
 
 
-class NavigationToolbar2(object):
+class NavigationToolbar2:
     """
     Base class for the navigation cursor, version 2
 
@@ -3079,7 +3079,7 @@ def set_history_buttons(self):
         """Enable or disable the back/forward button."""
 
 
-class ToolContainerBase(object):
+class ToolContainerBase:
     """
     Base class for all tool containers, e.g. toolbars.
 
@@ -3223,7 +3223,7 @@ def remove_toolitem(self, name):
         raise NotImplementedError
 
 
-class StatusbarBase(object):
+class StatusbarBase:
     """Base class for the statusbar"""
     def __init__(self, toolmanager):
         self.toolmanager = toolmanager
@@ -3246,7 +3246,7 @@ def set_message(self, s):
         pass
 
 
-class _Backend(object):
+class _Backend:
     # A backend can be defined by using the following pattern:
     #
     # @_Backend.export

diff --git a/lib/matplotlib/backend_managers.py b/lib/matplotlib/backend_managers.py
@@ -8,7 +8,7 @@
 _log = logging.getLogger(__name__)
 
 
-class ToolEvent(object):
+class ToolEvent:
     """Event for tool manipulation (add/remove)."""
     def __init__(self, name, sender, tool, data=None):
         self.name = name
@@ -24,7 +24,7 @@ def __init__(self, name, sender, tool, canvasevent=None, data=None):
         self.canvasevent = canvasevent
 
 
-class ToolManagerMessageEvent(object):
+class ToolManagerMessageEvent:
     """
     Event carrying messages from toolmanager.
 
@@ -36,7 +36,7 @@ def __init__(self, name, sender, message):
         self.message = message
 
 
-class ToolManager(object):
+class ToolManager:
     """
     Manager for actions triggered by user interactions (key press, toolbar
     clicks, ...) on a Figure.

diff --git a/lib/matplotlib/backend_tools.py b/lib/matplotlib/backend_tools.py
@@ -36,7 +36,7 @@ class Cursors(IntEnum):  # Must subclass int for the macOS backend.
 _views_positions = 'viewpos'
 
 
-class ToolBase(object):
+class ToolBase:
     """
     Base tool class
 

diff --git a/lib/matplotlib/backends/_backend_tk.py b/lib/matplotlib/backends/_backend_tk.py
@@ -645,7 +645,7 @@ def update(self):
             NavigationToolbar2.update(self)
 
 
-class ToolTip(object):
+class ToolTip:
     """
     Tooltip recipe from
     http://www.voidspace.org.uk/python/weblog/arch_d7_2006_07_01.shtml#e387

diff --git a/lib/matplotlib/backends/backend_mixed.py b/lib/matplotlib/backends/backend_mixed.py
@@ -4,7 +4,7 @@
 from matplotlib.tight_bbox import process_figure_for_rasterizing
 
 
-class MixedModeRenderer(object):
+class MixedModeRenderer:
     """
     A helper class to implement a renderer that switches between
     vector and raster drawing.  An example may be a PDF writer, where

diff --git a/lib/matplotlib/backends/backend_nbagg.py b/lib/matplotlib/backends/backend_nbagg.py
@@ -148,7 +148,7 @@ def new_timer(self, *args, **kwargs):
         return TimerTornado(*args, **kwargs)
 
 
-class CommSocket(object):
+class CommSocket:
     """
     Manages the Comm connection between IPython and the browser (client).
 

diff --git a/lib/matplotlib/backends/backend_pdf.py b/lib/matplotlib/backends/backend_pdf.py
@@ -223,7 +223,7 @@ def pdfRepr(obj):
                         .format(type(obj)))
 
 
-class Reference(object):
+class Reference:
     """PDF reference object.
     Use PdfFile.reserveObject() to create References.
     """
@@ -245,7 +245,7 @@ def write(self, contents, file):
 
 
 @total_ordering
-class Name(object):
+class Name:
     """PDF name object."""
     __slots__ = ('name',)
     _regex = re.compile(r'[^!-~]')
@@ -281,7 +281,7 @@ def pdfRepr(self):
         return b'/' + self.name
 
 
-class Operator(object):
+class Operator:
     """PDF operator object."""
     __slots__ = ('op',)
 
@@ -295,7 +295,7 @@ def pdfRepr(self):
         return self.op
 
 
-class Verbatim(object):
+class Verbatim:
     """Store verbatim PDF command content for later inclusion in the
     stream."""
     def __init__(self, x):
@@ -339,7 +339,7 @@ def _paint_path(fill, stroke):
 Op.paint_path = _paint_path
 
 
-class Stream(object):
+class Stream:
     """PDF stream object.
 
     This has no pdfRepr method. Instead, call begin(), then output the
@@ -420,7 +420,7 @@ def _flush(self):
             self.compressobj = None
 
 
-class PdfFile(object):
+class PdfFile:
     """PDF file object."""
 
     def __init__(self, filename, metadata=None):
@@ -2324,7 +2324,7 @@ def finalize(self):
 ########################################################################
 
 
-class PdfPages(object):
+class PdfPages:
     """
     A multi-page PDF file.
 

diff --git a/lib/matplotlib/backends/backend_ps.py b/lib/matplotlib/backends/backend_ps.py
@@ -42,7 +42,7 @@
 debugPS = 0
 
 
-class PsBackendHelper(object):
+class PsBackendHelper:
 
     def __init__(self):
         self._cached = {}
@@ -950,7 +950,7 @@ def _print_figure(
         self.figure.set_edgecolor(edgecolor)
 
         if dryrun:
-            class NullWriter(object):
+            class NullWriter:
                 def write(self, *args, **kwargs):
                     pass
 
@@ -1148,7 +1148,7 @@ def _print_figure_tex(
         self.figure.set_edgecolor(edgecolor)
 
         if dryrun:
-            class NullWriter(object):
+            class NullWriter:
                 def write(self, *args, **kwargs):
                     pass
 

diff --git a/lib/matplotlib/backends/backend_svg.py b/lib/matplotlib/backends/backend_svg.py
@@ -96,7 +96,7 @@ def short_float_fmt(x):
     return '{0:f}'.format(x).rstrip('0').rstrip('.')
 
 
-class XMLWriter(object):
+class XMLWriter:
     """
     Parameters
     ----------

diff --git a/lib/matplotlib/backends/backend_wx.py b/lib/matplotlib/backends/backend_wx.py
@@ -57,7 +57,7 @@ def debug_on_error(type, value, tb):
 
 
 @cbook.deprecated("3.1")
-class fake_stderr(object):
+class fake_stderr:
     """
     Wx does strange things with stderr, as it makes the assumption that
     there is probably no console. This redirects stderr to the console, since

diff --git a/lib/matplotlib/bezier.py b/lib/matplotlib/bezier.py
@@ -145,7 +145,7 @@ def find_bezier_t_intersecting_with_closedpath(
             start_inside = middle_inside
 
 
-class BezierSegment(object):
+class BezierSegment:
     """
     A simple class of a 2-dimensional bezier segment
     """

diff --git a/lib/matplotlib/blocking_input.py b/lib/matplotlib/blocking_input.py
@@ -27,7 +27,7 @@
 _log = logging.getLogger(__name__)
 
 
-class BlockingInput(object):
+class BlockingInput:
     """Callable for retrieving events in a blocking way."""
 
     def __init__(self, fig, eventslist=()):