do not create ply debug output and tables

Author: manfred-kaiser

sifter/grammar/grammar.py

@@ -35,7 +35,9 @@ def __init__(self) -> None:
     @staticmethod
     def make_parser(mod: Any) -> 'LRParser':
         return ply.yacc.yacc(
-            module=mod
+            module=mod,
+            debug=False,
+            write_tables=False
         )
 
     def parse(self, rules: Text, tracking: int = 0) -> CommandList:

sifter/grammar/lexer.py

@@ -18,7 +18,10 @@
 class SieveLexer():
 
     def __init__(self) -> None:
-        self.lexer = ply.lex.lex(module=self)
+        self.lexer = ply.lex.lex(
+            module=self,
+            debug=False
+        )
         self.lexer.linestart = 0
 
     def __iter__(self) -> Any: