@@ -67,12 +67,14 @@ def _parse_target_clause(self, factory_class):
6767 pos = self .token_pos
6868 fc = factory_class .__class__ .__name__
6969 logger .debug (
70- f"Move token pos { pos } to continue parsing with specific factory class { fc } "
70+ "Move token pos %s to continue parsing with specific factory class %s" ,
71+ pos ,
72+ fc ,
7173 )
7274 # noinspection PyProtectedMember
7375 ast , token_pos = factory_class (** self ._initializer_args ())._parse_with_pos ()
7476 self .target_clauses .append (ast )
75- logger .debug (f "Continue where previous parsing ended { token_pos } " )
77+ logger .debug ("Continue where previous parsing ended: %s" , token_pos )
7678 self .token_pos = token_pos
7779
7880 @abstractmethod
@@ -353,7 +355,7 @@ def _parse_target_clause(self, factory_class):
353355 ** self ._initializer_args ()
354356 )._parse_with_pos ()
355357 self .target_nodes .append (ast )
356- logger .debug (f "Continue where previous parsing ended { self .token_pos } " )
358+ logger .debug ("Continue where previous parsing ended: %s" , self .token_pos )
357359
358360 def _parse (self ):
359361 self ._parse_target_clause (self ._operand_factory_class ())
@@ -552,7 +554,7 @@ def _parse(self):
552554 if len (self .target_clauses ) == 0 :
553555 nc = self ._nestable_class ().__name__
554556 nepc = self ._nested_expression_parser_class ().__name__
555- logger .debug (f "Didn't encounter a single { nc } in { nepc } ." )
557+ logger .debug ("Didn't encounter a single %s in %s." , nc , nepc )
556558 self .raise_unexpected_token ()
557559
558560 return self ._create_node ()
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