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.CondaPkg/env/lib/python3.11/site-packages/jsons/deserializers/default_complex.py

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+from typing import Dict
+
+from jsons._load_impl import load
+from jsons.exceptions import DeserializationError
+
+
+def default_complex_deserializer(obj: Dict[str, float],
+                                 cls: type = complex,
+                                 **kwargs) -> complex:
+    """
+    Deserialize a dictionary with 'real' and 'imag' keys to a complex number.
+    :param obj: the dict that is to be deserialized.
+    :param cls: not used.
+    :param kwargs: not used.
+    :return: an instance of ``complex``.
+    """
+    try:
+        clean_obj = load({'real': obj['real'], 'imag': obj['imag']},
+                         cls=Dict[str, float])
+        return complex(clean_obj['real'], clean_obj['imag'])
+    except KeyError as err:
+        raise AttributeError("Cannot deserialize {} to a complex number, "
+                             "does not contain key '{}'"
+                             .format(obj, err.args[0])) from err
+    except DeserializationError as err:
+        raise AttributeError("Cannot deserialize {} to a complex number, "
+                             "cannot cast value {} to float"
+                             .format(obj, err.source)) from err