drop class method identifier from docs

Same result as in 92e3735d63, but now achieved by patching the Sphinx configuration instead of patching the API.

Now it doesn't break the API for the purpose of checking and autocomplete, etc.

doc/common/conf.py

@@ -19,7 +19,8 @@
 #
 import os
 import sys
-sys.path.insert(0, os.path.abspath('..'))
+from sphinx.domains.python import PyClassmember
+sys.path.insert(0, os.path.abspath('../..'))
 
 from pybricks import _version  # noqa E402
 
@@ -249,3 +250,10 @@ texinfo_documents = [
      author, 'Pybricks', 'One line description of project.',
      'Miscellaneous'),
 ]
+
+
+def get_signature_prefix_none(self, sig):
+    return ''
+
+
+PyClassmember.get_signature_prefix = get_signature_prefix_none

pybricks/_common.py

@@ -346,12 +346,10 @@ class Motor():
 class Display():
     """Show images or text on a display."""
 
-    @staticmethod
     def clear(self):
         """Clear everything on the display."""
         pass
 
-    @staticmethod
     def text(self, text, coordinate=None):
         """Display text.
 
@@ -364,7 +362,6 @@ class Display():
         """
         pass
 
-    @staticmethod
     def image(self, file_name,
               alignment=Align.CENTER, coordinate=None, clear=True):
         """image(file_name, alignment=Align.CENTER, coordinate=None, clear=True)
@@ -391,7 +388,6 @@ class Display():
 class Speaker():
     """Play beeps and sound files using a speaker."""
 
-    @staticmethod
     def beep(self, frequency=500, duration=100, volume=30):
         """Play a beep/tone.
 
@@ -403,7 +399,6 @@ class Speaker():
         """
         pass
 
-    @staticmethod
     def beeps(self, number):
         """Play a number of default beeps with a brief pause in between.
 
@@ -413,7 +408,6 @@ class Speaker():
         """
         pass
 
-    @staticmethod
     def file(self, file_name, volume=100):
         """Play a sound file.
 
@@ -429,17 +423,14 @@ class Speaker():
 class Light():
     """Control a single color LED."""
 
-    @staticmethod
     def on(self):
         """Turn on the light at maximum brightness."""
         pass
 
-    @staticmethod
     def off(self):
         """Turn off the light."""
         pass
 
-    @staticmethod
     def brightness(self, brightness):
         """Set the perceived brightness of the light.
 
@@ -452,7 +443,6 @@ class Light():
 class ColorLight():
     """Control an RGB LED."""
 
-    @staticmethod
     def color(self, color):
         """Turn on the light at the specified color.
 
@@ -462,12 +452,10 @@ class ColorLight():
         """
         pass
 
-    @staticmethod
     def off(self):
         """Turn off the light."""
         pass
 
-    @staticmethod
     def brightness(self, red, green, blue):
         """Set the perceived brightness of the red, green, and blue light.
 
@@ -482,7 +470,6 @@ class ColorLight():
 class Battery():
     """Get the status of a battery."""
 
-    @staticmethod
     def voltage(self):
         """Get the voltage of the battery.
 
@@ -491,7 +478,6 @@ class Battery():
         """
         pass
 
-    @staticmethod
     def current(self):
         """Get the current supplied by the battery.