@@ -781,41 +781,41 @@ Here's a summary of performance improvements from Python 3.4 through Python 3.9:
781781 -------------- --- --- --- --- --- ---
782782
783783 Variable and attribute read access:
784- read_local 7.1 7.1 5.4 5.1 3.9 4.0
785- read_nonlocal 7.1 8.1 5.8 5.4 4.4 4.8
786- read_global 15.5 19.0 14.3 13.6 7.6 7.7
787- read_builtin 21.1 21.6 18.5 19.0 7.5 7.7
788- read_classvar_from_class 25.6 26.5 20.7 19.5 18.4 18.6
789- read_classvar_from_instance 22.8 23.5 18.8 17.1 16.4 20.1
790- read_instancevar 32.4 33.1 28.0 26.3 25.4 27.7
791- read_instancevar_slots 27.8 31.3 20.8 20.8 20.2 24 .5
792- read_namedtuple 73.8 57.5 45.0 46.8 18.4 23.2
793- read_boundmethod 37.6 37.9 29.6 26.9 27.7 45.9
784+ read_local 7.1 7.1 5.4 5.1 3.9 3.9
785+ read_nonlocal 7.1 8.1 5.8 5.4 4.4 4.5
786+ read_global 15.5 19.0 14.3 13.6 7.6 7.8
787+ read_builtin 21.1 21.6 18.5 19.0 7.5 7.8
788+ read_classvar_from_class 25.6 26.5 20.7 19.5 18.4 17.9
789+ read_classvar_from_instance 22.8 23.5 18.8 17.1 16.4 16.9
790+ read_instancevar 32.4 33.1 28.0 26.3 25.4 25.3
791+ read_instancevar_slots 27.8 31.3 20.8 20.8 20.2 20 .5
792+ read_namedtuple 73.8 57.5 45.0 46.8 18.4 18.7
793+ read_boundmethod 37.6 37.9 29.6 26.9 27.7 41.1
794794
795795 Variable and attribute write access:
796- write_local 8.7 9.3 5.5 5.3 4.3 4.2
797- write_nonlocal 10.5 11.1 5.6 5.5 4.7 4.9
798- write_global 19.7 21.2 18.0 18.0 15.8 17.2
799- write_classvar 92.9 96.0 104.6 102.1 39.2 43.2
800- write_instancevar 44.6 45.8 40.0 38.9 35.5 40.7
801- write_instancevar_slots 35.6 36.1 27.3 26.6 25.7 27.7
796+ write_local 8.7 9.3 5.5 5.3 4.3 4.3
797+ write_nonlocal 10.5 11.1 5.6 5.5 4.7 4.8
798+ write_global 19.7 21.2 18.0 18.0 15.8 16.7
799+ write_classvar 92.9 96.0 104.6 102.1 39.2 39.8
800+ write_instancevar 44.6 45.8 40.0 38.9 35.5 37.4
801+ write_instancevar_slots 35.6 36.1 27.3 26.6 25.7 25.8
802802
803803 Data structure read access:
804- read_list 24.2 24.5 20.8 20.8 19.0 21.1
805- read_deque 24.7 25.5 20.2 20.6 19.8 21.6
806- read_dict 24.3 25.7 22.3 23.0 21.0 22.5
807- read_strdict 22.6 24.3 19.5 21.2 18.9 21.6
804+ read_list 24.2 24.5 20.8 20.8 19.0 19.5
805+ read_deque 24.7 25.5 20.2 20.6 19.8 20.2
806+ read_dict 24.3 25.7 22.3 23.0 21.0 22.4
807+ read_strdict 22.6 24.3 19.5 21.2 18.9 21.5
808808
809809 Data structure write access:
810- write_list 27.1 28.5 22.5 21.6 20.0 21.6
811- write_deque 28.7 30.1 22.7 21.8 23.5 23.2
812- write_dict 31.4 33.3 29.3 29.2 24.7 27.8
813- write_strdict 28.4 29.9 27.5 25.2 23.1 29.8
810+ write_list 27.1 28.5 22.5 21.6 20.0 20.0
811+ write_deque 28.7 30.1 22.7 21.8 23.5 21.7
812+ write_dict 31.4 33.3 29.3 29.2 24.7 25.4
813+ write_strdict 28.4 29.9 27.5 25.2 23.1 24.5
814814
815815 Stack (or queue) operations:
816- list_append_pop 93.4 112.7 75.4 74.2 50.8 53.9
817- deque_append_pop 43.5 57.0 49.4 49.2 42.5 45.5
818- deque_append_popleft 43.7 57.3 49.7 49.7 42.8 45.5
816+ list_append_pop 93.4 112.7 75.4 74.2 50.8 50.6
817+ deque_append_pop 43.5 57.0 49.4 49.2 42.5 44.2
818+ deque_append_popleft 43.7 57.3 49.7 49.7 42.8 46.4
819819
820820 Timing loop:
821821 loop_overhead 0.5 0.6 0.4 0.3 0.3 0.3
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