Creating copy function on configuration space

src/ConfigSpace/configuration_space.py

@@ -895,6 +895,19 @@ def substitute_hyperparameters_in_forbiddens(
 
         return new_forbiddens
 
+    def __copy__(self) -> ConfigurationSpace:
+        """Creates a copy of the ConfigurationSpace."""
+        cs_copy = ConfigurationSpace(
+            name=self.name,
+            meta=self.meta.copy(),            
+            space={hp.name: copy.copy(hp) for hp in self.values()},
+        )
+        for condition in self.conditions:
+            cs_copy.add(copy.copy(condition))
+        for forbidden in self.forbidden_clauses:
+            cs_copy.add(copy.copy(forbidden))
+        return cs_copy
+
     def __eq__(self, other: Any) -> bool:
         """Override the default Equals behavior."""
         if isinstance(other, self.__class__):

test/test_configuration_space.py

@@ -1482,3 +1482,30 @@ def test_configuration_space_can_be_made_with_sequence_of_hyperparameters() -> N
     assert len(cs) == 2
     assert "a" in cs
     assert "b" in cs
+
+
+def test_copy() -> None:
+    import copy
+
+    cs = ConfigurationSpace(
+        name="myspace",
+        meta={"hello": "world"},
+        space=[
+            Float("a", (1.0, 10.0)),
+            Integer("b", (1, 10)),
+            CategoricalHyperparameter("c", ["a", "b", "c"]),
+        ],
+    )
+    cs.add(EqualsCondition(cs["b"], cs["c"], "a"))
+    cs.add(ForbiddenEqualsClause(cs["a"], 4.2))
+
+    cs_copy = copy.copy(cs)
+    assert cs == cs_copy
+
+    # Verify that removing components from the copy
+    cs_copy.remove(cs["a"])
+    assert cs != cs_copy
+
+    # Re adding the hyperparameter will not bring forbidden back
+    cs_copy.add(cs["a"])
+    assert cs != cs_copy