First but not optimized version of AstFormatDict

src/parsers/PythonParser.py

@@ -37,10 +37,15 @@ class PythonNode(Node):
 
     def __init__(self, source, ast_=None, objects=None):
         self.source = source
-        self.ast_ = ast_ if ast_ else ast.parse(source, mode="eval") if source else None
+        self.ast_ = ast_  # if ast_ else ast.parse(source, mode="eval") if source else None
         self.objects = objects or {}  # when objects (mainly concepts or rules) are recognized in the expression
         self.compiled = None
 
+    def init_ast(self):
+        if self.ast_ is None and self.source:
+            self.ast_ = ast.parse(self.source, mode="eval")
+        return self
+
     def get_compiled(self):
         if self.compiled is None:
             self.compiled = compile(self.ast_, "<string>", "eval")
@@ -60,10 +65,12 @@ class PythonNode(Node):
         if self.source != other.source:
             return False
 
-        self_dump = self.get_dump(self.ast_)
-        other_dump = self.get_dump(other.ast_)
+        if self.ast_ and other.ast_:
+            self_dump = self.get_dump(self.ast_)
+            other_dump = self.get_dump(other.ast_)
+            return self_dump == other_dump
 
-        return self_dump == other_dump
+        return True
 
     def __hash__(self):
         return hash((self.source, self.ast_.hash))