Nov 7, 2022 · Nov 11, 2022
diff --git a/lib/matplotlib/container.py b/lib/matplotlib/container.py
 import collections

 from matplotlib import cbook
 from matplotlib.artist import Artist

                .format(type(self).__name__, len(self)))

    def __new__(cls, *args, **kwargs):
        return tuple.__new__(cls, args[0])
        if isinstance(args[0], collections.abc.Iterable):
            iterable_of_artists = args[0]
        else:
            iterable_of_artists = (a for a in args if isinstance(a, Artist))

        return tuple.__new__(cls, iterable_of_artists)

    def __init__(self, kl, label=None):
        self._callbacks = cbook.CallbackRegistry(signals=["pchanged"])
diff --git a/lib/matplotlib/streamplot.py b/lib/matplotlib/streamplot.py

 import matplotlib as mpl
 from matplotlib import _api, cm, patches
 from matplotlib.container import Container
 import matplotlib.colors as mcolors
 import matplotlib.collections as mcollections
 import matplotlib.lines as mlines

    Returns
    -------
    StreamplotSet
        Container object with attributes
    `~.StreamplotContainer`

        - ``lines``: `.LineCollection` of streamlines

        - ``arrows``: `.PatchCollection` containing `.FancyArrowPatch`
          objects representing the arrows half-way along stream lines.

        This container will probably change in the future to allow changes
        to the colormap, alpha, etc. for both lines and arrows, but these
        changes should be backward compatible.
    .. versionchanged major.minor::
    """
    grid = Grid(x, y)
    mask = StreamMask(density)
        axes.add_patch(p)

    axes.autoscale_view()
    stream_container = StreamplotSet(lc, ac)
    return stream_container
    return StreamplotSet(lc, ac)


 class StreamplotSet(Container):
    """
    `~.Container` object for artists created in an `~.Axes.streamplot` plot.

    It can be treated like a namedtuple with fields ``(lines, arrows)``

 class StreamplotSet:
    .. versionchanged major.minor ::

    def __init__(self, lines, arrows):
    Attributes
    ----------
    lines: `~.LineCollection`
 `       collection of `.Line2d` segments that make up the streamlines
    arrows: `~.PatchCollection`
        collection of `.FancyArrow` arrows half-way along each streamline
    """

    def __init__(self, lines, arrows, **kwargs):
        self.lines = lines
        self.arrows = arrows
        super().__init__(lines, arrows, **kwargs)


 # Coordinate definitions
 # ========================


 class DomainMap:
    """
    Map representing different coordinate systems.
Original file line number	Diff line number	Diff line change
		@@ -1,3 +1,5 @@
		import collections

		from matplotlib import cbook
		from matplotlib.artist import Artist

Expand All		@@ -15,7 +17,12 @@ def __repr__(self):
		.format(type(self).__name__, len(self)))

		def __new__(cls, args, *kwargs):
		return tuple.__new__(cls, args[0])
		if isinstance(args[0], collections.abc.Iterable):
		iterable_of_artists = args[0]
		else:
		iterable_of_artists = (a for a in args if isinstance(a, Artist))

		return tuple.__new__(cls, iterable_of_artists)

		def __init__(self, kl, label=None):
		self._callbacks = cbook.CallbackRegistry(signals=["pchanged"])
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -7,6 +7,7 @@

		import matplotlib as mpl
		from matplotlib import _api, cm, patches
		from matplotlib.container import Container
		import matplotlib.colors as mcolors
		import matplotlib.collections as mcollections
		import matplotlib.lines as mlines
Expand DownExpand Up		@@ -76,17 +77,9 @@ def streamplot(axes, x, y, u, v, density=1, linewidth=None, color=None,

		Returns
		-------
		StreamplotSet
		Container object with attributes
		`~.StreamplotContainer`

		- ``lines``: `.LineCollection` of streamlines

		- ``arrows``: `.PatchCollection` containing `.FancyArrowPatch`
		objects representing the arrows half-way along stream lines.

		This container will probably change in the future to allow changes
		to the colormap, alpha, etc. for both lines and arrows, but these
		changes should be backward compatible.
		.. versionchanged major.minor::
		"""
		grid = Grid(x, y)
		mask = StreamMask(density)
Expand DownExpand Up		@@ -237,20 +230,35 @@ def streamplot(axes, x, y, u, v, density=1, linewidth=None, color=None,
		axes.add_patch(p)

		axes.autoscale_view()
		stream_container = StreamplotSet(lc, ac)
		return stream_container
		return StreamplotSet(lc, ac)


		class StreamplotSet(Container):
		"""
		`~.Container` object for artists created in an `~.Axes.streamplot` plot.

		It can be treated like a namedtuple with fields ``(lines, arrows)``

		class StreamplotSet:
		.. versionchanged major.minor ::

		def __init__(self, lines, arrows):
		Attributes
		----------
		lines: `~.LineCollection`
		` collection of `.Line2d` segments that make up the streamlines
		arrows: `~.PatchCollection`
		collection of `.FancyArrow` arrows half-way along each streamline
		"""

		def __init__(self, lines, arrows, **kwargs):
		self.lines = lines
		self.arrows = arrows
		super().__init__(lines, arrows, **kwargs)


		# Coordinate definitions
		# ========================


		class DomainMap:
		"""
		Map representing different coordinate systems.
Expand Down