May 19, 2025 · May 19, 2025
diff --git a/lib/matplotlib/legend.py b/lib/matplotlib/legend.py
            labels = [*reversed(labels)]
            handles = [*reversed(handles)]

        handles = list(handles)
        if len(handles) < 2:
            ncols = 1
        self._ncols = ncols if ncols != 1 else ncol
diff --git a/lib/matplotlib/tests/test_legend.py b/lib/matplotlib/tests/test_legend.py
              loc='center left', bbox_to_anchor=(1, .5))


 def test_legend_generator():
    # smoketest that generator inputs work
    fig, ax = plt.subplots()
    ax.plot([0, 1])
    ax.plot([0, 2])

    handles = (line for line in ax.get_lines())
    labels = (label for label in ['spam', 'eggs'])

    ax.legend(handles, labels, loc='upper left')


 @image_comparison(['legend_auto1.png'], remove_text=True)
 def test_legend_auto1():
    """Test automatic legend placement"""
Original file line number	Diff line number	Diff line change
Expand Up		@@ -459,6 +459,7 @@ def __init__(
		labels = [*reversed(labels)]
		handles = [*reversed(handles)]

		handles = list(handles)
		if len(handles) < 2:
		ncols = 1
		self._ncols = ncols if ncols != 1 else ncol
Expand Down
Original file line number	Diff line number	Diff line change
Expand Up		@@ -42,6 +42,18 @@ def test_legend_ordereddict():
		loc='center left', bbox_to_anchor=(1, .5))


		def test_legend_generator():
		# smoketest that generator inputs work
		fig, ax = plt.subplots()
		ax.plot([0, 1])
		ax.plot([0, 2])

		handles = (line for line in ax.get_lines())
		labels = (label for label in ['spam', 'eggs'])

		ax.legend(handles, labels, loc='upper left')


		@image_comparison(['legend_auto1.png'], remove_text=True)
		def test_legend_auto1():
		"""Test automatic legend placement"""
Expand Down