Implemented FunctionParser

src/evaluators/PythonEvaluator.py

@@ -40,6 +40,7 @@ class Expando:
     def __repr__(self):
         return f"{dir(self)}"
 
+
 @dataclass
 class PythonEvalError:
     error: Exception
@@ -59,13 +60,19 @@ class PythonEvaluator(OneReturnValueEvaluator):
         self.globals = {}
 
     def matches(self, context, return_value):
-        return return_value.status and \
-               isinstance(return_value.value, ParserResultConcept) and \
-               isinstance(return_value.value.value, PythonNode)
+        if not return_value.status or not isinstance(return_value.value, ParserResultConcept):
+            return False
+        body = return_value.value.value
+        return isinstance(body, PythonNode) or (
+            hasattr(body, "python_node") and isinstance(body.python_node, PythonNode))
+        # return return_value.status and \
+        #        isinstance(return_value.value, ParserResultConcept) and \
+        #        isinstance(return_value.value.value, PythonNode)
 
     def eval(self, context, return_value):
         sheerka = context.sheerka
-        node = return_value.value.value
+        node = return_value.value.value if isinstance(return_value.value.value, PythonNode) else \
+            return_value.value.value.python_node
 
         context.log(f"Evaluating python node {node}.", self.name)