@@ -513,9 +513,9 @@ def test_exemplar_invalid_legacy_label_name(self):
513513        enable_legacy_validation ()
514514        self .assertRaises (ValueError , self .histogram .observe , 3.0 , exemplar = {':o)' : 'smile' })
515515        self .assertRaises (ValueError , self .histogram .observe , 3.0 , exemplar = {'1' : 'number' })
516+         disable_legacy_validation ()
516517
517518    def  test_exemplar_invalid_label_name (self ):
518-         disable_legacy_validation ()
519519        self .histogram .observe (3.0 , exemplar = {':o)' : 'smile' })
520520        self .histogram .observe (3.0 , exemplar = {'1' : 'number' })
521521
@@ -669,9 +669,9 @@ def test_invalid_legacy_names_raise(self):
669669        self .assertRaises (ValueError , Counter , 'c_total' , '' , labelnames = ['a:b' ])
670670        self .assertRaises (ValueError , Counter , 'c_total' , '' , labelnames = ['__reserved' ])
671671        self .assertRaises (ValueError , Summary , 'c_total' , '' , labelnames = ['quantile' ])
672+         disable_legacy_validation ()
672673
673674    def  test_invalid_names_raise (self ):
674-         disable_legacy_validation ()
675675        self .assertRaises (ValueError , Counter , '' , 'help' )
676676        self .assertRaises (ValueError , Counter , '' , 'help' , namespace = '&' )
677677        self .assertRaises (ValueError , Counter , '' , 'help' , subsystem = '(' )
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