feat: Brought use_cats and get_nterms into the scope of the python bindings (zxcalc#42)

Brought use_cats and get_nterms into the scope of the python bindings
(such that these can now be changed/read within Python when using the
bindings).

Moreover, the Python bindings for simplifying graphs did not work, but a
couple of trivial changes seem to fix it.

Author: mjsutcliffe99

pybindings/build.sh

@@ -100,6 +100,8 @@ class Decomposer:
     def decomp_top(self) -> None: ...
     def decomp_all(self) -> None: ...
     def decomp_until_depth(self, depth: int) -> None: ...
+    def use_cats(self, b: bool) -> None: ...
+    def get_nterms(self) -> int: ...
 
 def dummy(a: int) -> str: ...
 def interior_clifford_simp(g: VecGraph): ...

pybindings/quizx/_quizx.pyi

@@ -33,10 +33,19 @@ def decomp_all(self):
     def decomp_until_depth(self, depth: int):
         self._d.decomp_until_depth(depth)
 
+    def use_cats(self, b: bool):
+        self._d.use_cats(b)
+
+    def get_nterms(self):
+        return self._d.get_nterms()
+
     @property
     def scalar(self) -> Scalar:
         return to_pyzx_scalar(self._d.scalar)
 
     @scalar.setter
     def scalar(self, s: Scalar):
         self._d.scalar = from_pyzx_scalar(s)
+
+    def is_ground(self, vertex):
+        return False

pybindings/quizx/decompose.py

@@ -33,11 +33,11 @@ class VecGraph(BaseGraph[int, Tuple[int, int]]):
     # The documentation of what these methods do
     # can be found in base.BaseGraph
     def __init__(self, rust_graph: Optional[_quizx.VecGraph] = None):
-        BaseGraph.__init__(self)
         if rust_graph:
             self._g = rust_graph
         else:
             self._g = _quizx.VecGraph()
+        BaseGraph.__init__(self)
         self._vdata: Dict[int, Any] = dict()
 
     def get_raw_graph(self) -> _quizx.VecGraph:
@@ -325,3 +325,6 @@ def scalar(self) -> Scalar:
     @scalar.setter
     def scalar(self, s: Scalar):
         self._g.scalar = from_pyzx_scalar(s)
+
+    def is_ground(self, vertex):
+        return False

pybindings/quizx/graph.py

@@ -11,4 +11,4 @@ def from_pyzx_scalar(s: PyzxScalar) -> QuizxScalar:
 
 def to_pyzx_scalar(s: QuizxScalar) -> PyzxScalar:
     """Convert a `pyzx.Scalar` to a `quizx::Scalar`."""
-    return PyzxScalar.from_json(s.to_json())
+    return PyzxScalar().from_json(s.to_json())

pybindings/quizx/scalar.py

@@ -374,4 +374,10 @@ impl Decomposer {
     fn decomp_until_depth(&mut self, depth: usize) {
         self.d.decomp_until_depth(depth);
     }
+    fn use_cats(&mut self, b: bool) {
+        self.d.use_cats(b);
+    }
+    fn get_nterms(&self) -> usize {
+        self.d.nterms
+    }
 }