Enable ruff's preview whitespace linting rules

These are the ones we were using with flake8, but were not available
before ruff 0.2.0 (or at least whatever the last tested version was).

Also, clean up a bit of the code so that we only use one type of
whitespace exception.

Author: QuLogic

.flake8

@@ -34,17 +34,18 @@ exclude =
 
 per-file-ignores =
     lib/matplotlib/_cm.py: E202, E203, E302
-    lib/matplotlib/_mathtext.py: E221, E251
-    lib/matplotlib/_mathtext_data.py: E203, E261
+    lib/matplotlib/_mathtext.py: E221
+    lib/matplotlib/_mathtext_data.py: E203
     lib/matplotlib/backends/backend_template.py: F401
     lib/matplotlib/mathtext.py: E221
     lib/matplotlib/pylab.py: F401, F403
     lib/matplotlib/pyplot.py: F811
     lib/matplotlib/tests/test_mathtext.py: E501
-    lib/matplotlib/transforms.py: E201, E202, E203
+    lib/matplotlib/transforms.py: E201, E202
     lib/matplotlib/tri/_triinterpolate.py: E201, E221
     lib/mpl_toolkits/axes_grid1/axes_size.py: E272
     lib/mpl_toolkits/axisartist/angle_helper.py: E221
+    lib/mpl_toolkits/mplot3d/proj3d.py: E201
 
     doc/conf.py: E402
     galleries/users_explain/quick_start.py: E402

lib/matplotlib/_mathtext.py

@@ -379,27 +379,27 @@ def _get_info(self, fontname: str, font_class: str, sym: str, fontsize: float,
         xmin, ymin, xmax, ymax = [val/64.0 for val in glyph.bbox]
         offset = self._get_offset(font, glyph, fontsize, dpi)
         metrics = FontMetrics(
-            advance = glyph.linearHoriAdvance/65536.0,
-            height  = glyph.height/64.0,
-            width   = glyph.width/64.0,
-            xmin    = xmin,
-            xmax    = xmax,
-            ymin    = ymin+offset,
-            ymax    = ymax+offset,
+            advance=glyph.linearHoriAdvance / 65536,
+            height=glyph.height / 64,
+            width=glyph.width / 64,
+            xmin=xmin,
+            xmax=xmax,
+            ymin=ymin + offset,
+            ymax=ymax + offset,
             # iceberg is the equivalent of TeX's "height"
-            iceberg = glyph.horiBearingY/64.0 + offset,
-            slanted = slanted
-            )
+            iceberg=glyph.horiBearingY / 64 + offset,
+            slanted=slanted
+        )
 
         return FontInfo(
-            font            = font,
-            fontsize        = fontsize,
-            postscript_name = font.postscript_name,
-            metrics         = metrics,
-            num             = num,
-            glyph           = glyph,
-            offset          = offset
-            )
+            font=font,
+            fontsize=fontsize,
+            postscript_name=font.postscript_name,
+            metrics=metrics,
+            num=num,
+            glyph=glyph,
+            offset=offset
+        )
 
     def get_xheight(self, fontname: str, fontsize: float, dpi: float) -> float:
         font = self._get_font(fontname)

lib/matplotlib/axes/_axes.pyi

@@ -202,7 +202,7 @@ class Axes(_AxesBase):
         *args: float | ArrayLike | str,
         scalex: bool = ...,
         scaley: bool = ...,
-        data = ...,
+        data=...,
         **kwargs
     ) -> list[Line2D]: ...
     def plot_date(
@@ -232,7 +232,7 @@ class Axes(_AxesBase):
         detrend: Callable[[ArrayLike], ArrayLike] = ...,
         usevlines: bool = ...,
         maxlags: int = ...,
-        data = ...,
+        data=...,
         **kwargs
     ) -> tuple[np.ndarray, np.ndarray, LineCollection | Line2D, Line2D | None]: ...
     def step(
@@ -241,7 +241,7 @@ class Axes(_AxesBase):
         y: ArrayLike,
         *args,
         where: Literal["pre", "post", "mid"] = ...,
-        data = ...,
+        data=...,
         **kwargs
     ) -> list[Line2D]: ...
     def bar(
@@ -252,7 +252,7 @@ class Axes(_AxesBase):
         bottom: float | ArrayLike | None = ...,
         *,
         align: Literal["center", "edge"] = ...,
-        data = ...,
+        data=...,
         **kwargs
     ) -> BarContainer: ...
     def barh(
@@ -263,7 +263,7 @@ class Axes(_AxesBase):
         left: float | ArrayLike | None = ...,
         *,
         align: Literal["center", "edge"] = ...,
-        data = ...,
+        data=...,
         **kwargs
     ) -> BarContainer: ...
     def bar_label(

lib/matplotlib/transforms.py

@@ -2574,9 +2574,9 @@ def get_matrix(self):
             if DEBUG and (x_scale == 0 or y_scale == 0):
                 raise ValueError(
                     "Transforming from or to a singular bounding box")
-            self._mtx = np.array([[x_scale, 0.0    , (-inl*x_scale+outl)],
-                                  [0.0    , y_scale, (-inb*y_scale+outb)],
-                                  [0.0    , 0.0    , 1.0        ]],
+            self._mtx = np.array([[x_scale,     0.0, -inl*x_scale+outl],
+                                  [    0.0, y_scale, -inb*y_scale+outb],
+                                  [    0.0,     0.0,               1.0]],
                                  float)
             self._inverted = None
             self._invalid = 0
@@ -2668,9 +2668,9 @@ def get_matrix(self):
                 raise ValueError("Transforming from a singular bounding box.")
             x_scale = 1.0 / inw
             y_scale = 1.0 / inh
-            self._mtx = np.array([[x_scale, 0.0    , (-inl*x_scale)],
-                                  [0.0    , y_scale, (-inb*y_scale)],
-                                  [0.0    , 0.0    , 1.0        ]],
+            self._mtx = np.array([[x_scale,     0.0, -inl*x_scale],
+                                  [    0.0, y_scale, -inb*y_scale],
+                                  [    0.0,     0.0,          1.0]],
                                  float)
             self._inverted = None
             self._invalid = 0

lib/mpl_toolkits/mplot3d/proj3d.py

@@ -23,10 +23,10 @@ def world_transformation(xmin, xmax,
         dy /= ay
         dz /= az
 
-    return np.array([[1/dx, 0,    0,    -xmin/dx],
-                     [0,    1/dy, 0,    -ymin/dy],
-                     [0,    0,    1/dz, -zmin/dz],
-                     [0,    0,    0,    1]])
+    return np.array([[1/dx,    0,    0, -xmin/dx],
+                     [   0, 1/dy,    0, -ymin/dy],
+                     [   0,    0, 1/dz, -zmin/dz],
+                     [   0,    0,    0,        1]])
 
 
 @_api.deprecated("3.8")

pyproject.toml

@@ -136,11 +136,22 @@ ignore = [
     "E741",
     "F841",
 ]
+preview = true
+explicit-preview-rules = true
 select = [
     "D",
     "E",
     "F",
     "W",
+    # The following error codes require the preview mode to be enabled.
+    "E201",
+    "E202",
+    "E203",
+    "E221",
+    "E251",
+    "E261",
+    "E272",
+    "E703",
 ]
 
 # The following error codes are not supported by ruff v0.2.0
@@ -150,15 +161,7 @@ select = [
 # See https://github.com/charliermarsh/ruff/issues/2402 for status on implementation
 external = [
   "E122",
-  "E201",
-  "E202",
-  "E203",
-  "E221",
-  "E251",
-  "E261",
-  "E272",
   "E302",
-  "E703",
 ]
 
 [tool.ruff.lint.pydocstyle]
@@ -167,8 +170,12 @@ convention = "numpy"
 [tool.ruff.lint.per-file-ignores]
 "doc/conf.py" = ["E402"]
 "galleries/examples/animation/frame_grabbing_sgskip.py" = ["E402"]
+"galleries/examples/images_contours_and_fields/tricontour_demo.py" = ["E201"]
+"galleries/examples/images_contours_and_fields/tripcolor_demo.py" = ["E201"]
+"galleries/examples/images_contours_and_fields/triplot_demo.py" = ["E201"]
 "galleries/examples/lines_bars_and_markers/marker_reference.py" = ["E402"]
 "galleries/examples/misc/print_stdout_sgskip.py" = ["E402"]
+"galleries/examples/misc/table_demo.py" = ["E201"]
 "galleries/examples/style_sheets/bmh.py" = ["E501"]
 "galleries/examples/subplots_axes_and_figures/demo_constrained_layout.py" = ["E402"]
 "galleries/examples/text_labels_and_annotations/custom_legends.py" = ["E402"]
@@ -188,14 +195,22 @@ convention = "numpy"
 "lib/matplotlib/__init__.py" = ["E402", "F401"]
 "lib/matplotlib/_animation_data.py" = ["E501"]
 "lib/matplotlib/_api/__init__.py" = ["F401"]
+"lib/matplotlib/_cm.py" = ["E202", "E203"]
+"lib/matplotlib/_mathtext.py" = ["E221"]
+"lib/matplotlib/_mathtext_data.py" = ["E203"]
 "lib/matplotlib/axes/__init__.py" = ["F401", "F403"]
 "lib/matplotlib/backends/backend_template.py" = ["F401"]
 "lib/matplotlib/font_manager.py" = ["E501"]
 "lib/matplotlib/image.py" = ["F401", "F403"]
 "lib/matplotlib/pylab.py" = ["F401", "F403"]
 "lib/matplotlib/pyplot.py" = ["F401", "F811"]
 "lib/matplotlib/tests/test_mathtext.py" = ["E501"]
+"lib/matplotlib/transforms.py" = ["E201"]
+"lib/matplotlib/tri/_triinterpolate.py" = ["E201", "E221"]
+"lib/mpl_toolkits/axes_grid1/axes_size.py" = ["E272"]
 "lib/mpl_toolkits/axisartist/__init__.py" = ["F401"]
+"lib/mpl_toolkits/axisartist/angle_helper.py" = ["E221"]
+"lib/mpl_toolkits/mplot3d/proj3d.py" = ["E201"]
 "lib/pylab.py" = ["F401", "F403"]
 
 "galleries/users_explain/artists/paths.py" = ["E402"]