I can manage infinite recursion when building concept

src/parsers/PythonParser.py

@@ -5,7 +5,7 @@ from dataclasses import dataclass
 import core.utils
 from core.builtin_concepts import BuiltinConcepts
 from core.sheerka.services.SheerkaExecute import ParserInput
-from core.tokenizer import LexerError, TokenKind
+from core.tokenizer import TokenKind
 from parsers.BaseParser import BaseParser, Node, ErrorNode
 
 log = logging.getLogger(__name__)
@@ -101,9 +101,11 @@ class PythonParser(BaseParser):
     Parse Python scripts
     """
 
+    NAME = "Python"
+
     def __init__(self, **kwargs):
 
-        BaseParser.__init__(self, "Python", 50)
+        BaseParser.__init__(self, PythonParser.NAME, 50)
         self.source = kwargs.get("source", "<undef>")
 
     def parse(self, context, parser_input: ParserInput):
@@ -119,9 +121,7 @@ class PythonParser(BaseParser):
             TokenKind.RULE: lambda t: core.utils.encode_concept(t.value, "R")
         }
 
-        try:
-            parser_input.reset()
-
+        if self.reset_parser(context, parser_input):
             source_code = parser_input.as_text(python_switcher, tracker)
             source_code = source_code.strip()
 
@@ -134,14 +134,11 @@ class PythonParser(BaseParser):
                     error_node = PythonErrorNode(parser_input.as_text(), error)
                     self.error_sink.append(error_node)
 
-        except LexerError as e:
-            self.error_sink.append(e)
-
-        # Python parser will refuse input that directly refers to a concept
-        if isinstance(tree, ast.Expression) and isinstance(tree.body, ast.Name):
-            if tree.body.id in tracker or context.sheerka.fast_resolve(tree.body.id, return_new=False) is not None:
-                context.log("It's a simple concept. Not for me.", self.name)
-                self.error_sink.append(ConceptDetected(tree.body.id))
+            # Python parser will refuse input that directly refers to a concept
+            if isinstance(tree, ast.Expression) and isinstance(tree.body, ast.Name):
+                if tree.body.id in tracker or context.sheerka.fast_resolve(tree.body.id, return_new=False) is not None:
+                    context.log("It's a simple concept. Not for me.", self.name)
+                    self.error_sink.append(ConceptDetected(tree.body.id))
 
         if self.has_error:
             ret = sheerka.ret(