Added __repr__

Author: HalfWhitt

core/src/toga/style/pack.py

@@ -179,9 +179,9 @@ def warn_if_deprecated(self):
 ######################################################################
 
 if sys.version_info < (3, 10):
-    _DATACLASS_KWARGS = {"init": False}
+    _DATACLASS_KWARGS = {"init": False, "repr": False}
 else:
-    _DATACLASS_KWARGS = {"kw_only": True}
+    _DATACLASS_KWARGS = {"kw_only": True, "repr": False}
 
 
 @dataclass(**_DATACLASS_KWARGS)

travertino/src/travertino/style.py

@@ -207,9 +207,18 @@ def __ior__(self, other):
 
     def __str__(self):
         return "; ".join(
-            f"{name.replace('_', '-')}: {value}" for name, value in sorted(self.items())
+            [
+                f"{name.replace('_', '-')}: {value}"
+                for name, value in sorted(self.items())
+            ]
         )
 
+    def __repr__(self):
+        properties = ", ".join(
+            [f"{name}={repr(value)}" for name, value in sorted(self.items())]
+        )
+        return f"{type(self).__name__}({properties})"
+
     ######################################################################
     # Backwards compatibility
     ######################################################################

travertino/tests/test_style.py

@@ -704,6 +704,22 @@ def test_str(StyleClass):
     )
 
 
+def test_repr():
+    # Doesn't need to be tested with deprecated API.
+    style = Style(explicit_const=VALUE2, explicit_value=20, thing=(30, 40, 50, 60))
+
+    assert repr(style) == (
+        "Style("
+        "explicit_const='value2', "
+        "explicit_value=20, "
+        "thing_bottom=50, "
+        "thing_left=60, "
+        "thing_right=40, "
+        "thing_top=30"
+        ")"
+    )
+
+
 @pytest.mark.parametrize("StyleClass", [Style, DeprecatedStyle])
 def test_dict(StyleClass):
     "Style declarations expose a dict-like interface"

travertino/tests/utils.py

@@ -7,9 +7,9 @@
 from travertino.colors import hsl, hsla, rgb, rgba
 
 if sys.version_info < (3, 10):
-    _DATACLASS_KWARGS = {"init": False}
+    _DATACLASS_KWARGS = {"init": False, "repr": False}
 else:
-    _DATACLASS_KWARGS = {"kw_only": True}
+    _DATACLASS_KWARGS = {"kw_only": True, "repr": False}
 
 
 def apply_dataclass(cls):