Backport PR #26656: TYP: Fix some small bugs

oscargus · meeseeksmachine · commit e4f2ed47d577 · 2023-08-31T07:43:39.000Z
diff --git a/lib/matplotlib/_pylab_helpers.pyi b/lib/matplotlib/_pylab_helpers.pyi
@@ -6,7 +6,7 @@ from matplotlib.figure import Figure
 class Gcf:
     figs: OrderedDict[int, FigureManagerBase]
     @classmethod
-    def get_fig_manager(cls, num: int) -> FigureManagerBase: ...
+    def get_fig_manager(cls, num: int) -> FigureManagerBase | None: ...
     @classmethod
     def destroy(cls, num: int | FigureManagerBase) -> None: ...
     @classmethod
@@ -20,7 +20,9 @@ class Gcf:
     @classmethod
     def get_num_fig_managers(cls) -> int: ...
     @classmethod
-    def get_active(cls) -> FigureManagerBase: ...
+    def get_active(cls) -> FigureManagerBase | None: ...
+    @classmethod
+    def _set_new_active_manager(cls, manager: FigureManagerBase) -> None: ...
     @classmethod
     def set_active(cls, manager: FigureManagerBase) -> None: ...
     @classmethod
diff --git a/lib/matplotlib/axes/_axes.py b/lib/matplotlib/axes/_axes.py
@@ -280,7 +280,7 @@ def legend(self, *args, **kwargs):
 
         Parameters
         ----------
-        handles : sequence of `.Artist`, optional
+        handles : sequence of (`.Artist` or tuple of `.Artist`), optional
             A list of Artists (lines, patches) to be added to the legend.
             Use this together with *labels*, if you need full control on what
             is shown in the legend and the automatic mechanism described above
@@ -289,6 +289,9 @@ def legend(self, *args, **kwargs):
             The length of handles and labels should be the same in this
             case. If they are not, they are truncated to the smaller length.
 
+            If an entry contains a tuple, then the legend handler for all Artists in the
+            tuple will be placed alongside a single label.
+
         labels : list of str, optional
             A list of labels to show next to the artists.
             Use this together with *handles*, if you need full control on what
@@ -3436,7 +3439,7 @@ def errorbar(self, x, y, yerr=None, xerr=None,
             If True, will plot the errorbars above the plot
             symbols. Default is below.
 
-        lolims, uplims, xlolims, xuplims : bool, default: False
+        lolims, uplims, xlolims, xuplims : bool or array-like, default: False
             These arguments can be used to indicate that a value gives only
             upper/lower limits.  In that case a caret symbol is used to
             indicate this. *lims*-arguments may be scalars, or array-likes of
diff --git a/lib/matplotlib/axes/_axes.pyi b/lib/matplotlib/axes/_axes.pyi
@@ -57,9 +57,9 @@ class Axes(_AxesBase):
     @overload
     def legend(self) -> Legend: ...
     @overload
-    def legend(self, handles: Sequence[Artist], labels: Sequence[str], **kwargs) -> Legend: ...
+    def legend(self, handles: Sequence[Artist | tuple[Artist, ...]], labels: Sequence[str], **kwargs) -> Legend: ...
     @overload
-    def legend(self, *, handles: Sequence[Artist], **kwargs) -> Legend: ...
+    def legend(self, *, handles: Sequence[Artist | tuple[Artist, ...]], **kwargs) -> Legend: ...
     @overload
     def legend(self, labels: Sequence[str], **kwargs) -> Legend: ...
     @overload
@@ -332,10 +332,10 @@ class Axes(_AxesBase):
         elinewidth: float | None = ...,
         capsize: float | None = ...,
         barsabove: bool = ...,
-        lolims: bool = ...,
-        uplims: bool = ...,
-        xlolims: bool = ...,
-        xuplims: bool = ...,
+        lolims: bool | ArrayLike = ...,
+        uplims: bool | ArrayLike = ...,
+        xlolims: bool | ArrayLike = ...,
+        xuplims: bool | ArrayLike = ...,
         errorevery: int | tuple[int, int] = ...,
         capthick: float | None = ...,
         *,
diff --git a/lib/matplotlib/legend.py b/lib/matplotlib/legend.py
@@ -401,7 +401,7 @@ def __init__(
         parent : `~matplotlib.axes.Axes` or `.Figure`
             The artist that contains the legend.
 
-        handles : list of `.Artist`
+        handles : list of (`.Artist` or tuple of `.Artist`)
             A list of Artists (lines, patches) to be added to the legend.
 
         labels : list of str
@@ -1330,7 +1330,7 @@ def _parse_legend_args(axs, *args, handles=None, labels=None, **kwargs):
 
     Returns
     -------
-    handles : list of `.Artist`
+    handles : list of (`.Artist` or tuple of `.Artist`)
         The legend handles.
     labels : list of str
         The legend labels.
diff --git a/lib/matplotlib/legend.pyi b/lib/matplotlib/legend.pyi
@@ -52,7 +52,7 @@ class Legend(Artist):
     def __init__(
         self,
         parent: Axes | Figure,
-        handles: Iterable[Artist],
+        handles: Iterable[Artist | tuple[Artist, ...]],
         labels: Iterable[str],
         *,
         loc: str | tuple[float, float] | int | None = ...,
diff --git a/lib/matplotlib/pyplot.py b/lib/matplotlib/pyplot.py
@@ -938,7 +938,7 @@ def figure(
 
         for hookspecs in rcParams["figure.hooks"]:
             module_name, dotted_name = hookspecs.split(":")
-            obj = importlib.import_module(module_name)
+            obj: Any = importlib.import_module(module_name)
             for part in dotted_name.split("."):
                 obj = getattr(obj, part)
             obj(fig)
@@ -2961,10 +2961,10 @@ def errorbar(
     elinewidth: float | None = None,
     capsize: float | None = None,
     barsabove: bool = False,
-    lolims: bool = False,
-    uplims: bool = False,
-    xlolims: bool = False,
-    xuplims: bool = False,
+    lolims: bool | ArrayLike = False,
+    uplims: bool | ArrayLike = False,
+    xlolims: bool | ArrayLike = False,
+    xuplims: bool | ArrayLike = False,
     errorevery: int | tuple[int, int] = 1,
     capthick: float | None = None,
     *,
