Expire unused positional parameters in canvas subclasses

Author: oscargus

doc/api/next_api_changes/removals/24355-OG.rst

@@ -0,0 +1,6 @@
+Unused positional parameters to ``print_<fmt>`` methods
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+None of the ``print_<fmt>`` methods implemented by canvas subclasses used
+positional arguments other that the first (the output filename or file-like),
+so these extra parameters are removed.

lib/matplotlib/backends/backend_agg.py

@@ -441,8 +441,7 @@ def buffer_rgba(self):
         """
         return self.renderer.buffer_rgba()
 
-    @_api.delete_parameter("3.5", "args")
-    def print_raw(self, filename_or_obj, *args):
+    def print_raw(self, filename_or_obj):
         FigureCanvasAgg.draw(self)
         renderer = self.get_renderer()
         with cbook.open_file_cm(filename_or_obj, "wb") as fh:
@@ -460,9 +459,7 @@ def _print_pil(self, filename_or_obj, fmt, pil_kwargs, metadata=None):
             filename_or_obj, self.buffer_rgba(), format=fmt, origin="upper",
             dpi=self.figure.dpi, metadata=metadata, pil_kwargs=pil_kwargs)
 
-    @_api.delete_parameter("3.5", "args")
-    def print_png(self, filename_or_obj, *args,
-                  metadata=None, pil_kwargs=None):
+    def print_png(self, filename_or_obj, *, metadata=None, pil_kwargs=None):
         """
         Write the figure to a PNG file.
 
@@ -521,8 +518,7 @@ def print_to_buffer(self):
     # print_figure(), and the latter ensures that `self.figure.dpi` already
     # matches the dpi kwarg (if any).
 
-    @_api.delete_parameter("3.5", "args")
-    def print_jpg(self, filename_or_obj, *args, pil_kwargs=None):
+    def print_jpg(self, filename_or_obj, *, pil_kwargs=None):
         # savefig() has already applied savefig.facecolor; we now set it to
         # white to make imsave() blend semi-transparent figures against an
         # assumed white background.

lib/matplotlib/backends/backend_ps.py

@@ -822,9 +822,8 @@ class FigureCanvasPS(FigureCanvasBase):
     def get_default_filetype(self):
         return 'ps'
 
-    @_api.delete_parameter("3.5", "args")
     def _print_ps(
-            self, fmt, outfile, *args,
+            self, fmt, outfile, *,
             metadata=None, papertype=None, orientation='portrait',
             **kwargs):
 

lib/matplotlib/backends/backend_svg.py

@@ -1334,9 +1334,7 @@ class FigureCanvasSVG(FigureCanvasBase):
 
     fixed_dpi = 72
 
-    @_api.delete_parameter("3.5", "args")
-    def print_svg(self, filename, *args, bbox_inches_restore=None,
-                  metadata=None):
+    def print_svg(self, filename, *, bbox_inches_restore=None, metadata=None):
         """
         Parameters
         ----------
@@ -1382,8 +1380,7 @@ def print_svg(self, filename, *args, bbox_inches_restore=None,
             self.figure.draw(renderer)
             renderer.finalize()
 
-    @_api.delete_parameter("3.5", "args")
-    def print_svgz(self, filename, *args, **kwargs):
+    def print_svgz(self, filename, **kwargs):
         with cbook.open_file_cm(filename, "wb") as fh, \
                 gzip.GzipFile(mode='w', fileobj=fh) as gzipwriter:
             return self.print_svg(gzipwriter, **kwargs)

lib/matplotlib/backends/backend_template.py

@@ -197,8 +197,7 @@ def draw(self):
     # you should add it to the class-scope filetypes dictionary as follows:
     filetypes = {**FigureCanvasBase.filetypes, 'foo': 'My magic Foo format'}
 
-    @_api.delete_parameter("3.5", "args")
-    def print_foo(self, filename, *args, **kwargs):
+    def print_foo(self, filename, **kwargs):
         """
         Write out format foo.