From 7bd65b805d9a7d91d9054675e3673bc83ecb0521 Mon Sep 17 00:00:00 2001
From: Aleks Kissinger <aleks0@gmail.com>
Date: Thu, 26 Sep 2024 09:07:41 +0100
Subject: [PATCH] scalar from_json

---
 pyzx/graph/scalar.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/pyzx/graph/scalar.py b/pyzx/graph/scalar.py
index bcea3285..ee998388 100644
--- a/pyzx/graph/scalar.py
+++ b/pyzx/graph/scalar.py
@@ -194,8 +194,11 @@ def to_json(self) -> str:
         return json.dumps(self.to_dict())
 
     @classmethod
-    def from_json(cls, s: str) -> 'Scalar':
-        d = json.loads(s)
+    def from_json(cls, s: str|dict[str,Any]) -> 'Scalar':
+        if isinstance(s, str):
+            d = json.loads(s)
+        else:
+            d = s
         d["phase"] = Fraction(d["phase"])
         if "phasenodes" in d:
             d["phasenodes"] = [Fraction(p) for p in d["phasenodes"]]