Iterate dictionary directly #1145

Job	Run time
mypy	19s
build_python_27 (ubuntu-22.04, yes)	2m 50s
test_c_linux (1, x32)	1m 16s
build_python_27 (ubuntu-22.04, no)	2m 44s
test_c_linux (0, x32)	1m 7s
test_c_linux (1, x64)	1m 3s
build_python_27 (windows-latest, no)	3m 52s
build_python_27 (windows-latest, yes)	3m 56s
test_c_windows (windows-11-arm, arm64)	2m 25s
test_c_linux (0, x64)	58s
test_c_windows (windows-latest, x64)	1m 35s
test_c_windows (windows-latest, win32)	44s
python_no_gil	7m 0s
build (3.11, no, ubuntu-22.04)	4m 34s
build (3.7, no, ubuntu-22.04)	2m 42s
build (3.9, yes, ubuntu-22.04)	4m 46s
build (3.9, no, ubuntu-22.04)	4m 46s
build (3.11, yes, ubuntu-22.04)	4m 24s
build (3.8, no, ubuntu-22.04)	2m 33s
build (3.10, yes, ubuntu-22.04)	4m 43s
build (3.12, no, ubuntu-22.04)	4m 38s
build (3.8, yes, ubuntu-22.04)	2m 35s
build (3.12, yes, ubuntu-22.04)	4m 31s
build (3.10, no, ubuntu-22.04)	4m 43s
build (3.13, no, ubuntu-22.04)	4m 43s
build (3.7, yes, ubuntu-22.04)	2m 43s
build (3.13, yes, ubuntu-22.04)	4m 28s
build (3.13, yes, macos-13)	4m 40s
build (3.13, yes, windows-11-arm)	6m 47s
build (pypy3.9, no, ubuntu-latest)	4m 4s
build (3.13, yes, ubuntu-22.04-arm)	4m 48s
build (3.13, yes, windows-latest)	4m 5s
build (3.13, no, windows-latest)	4m 6s
build (pypy2.7, no, ubuntu-latest)	1m 40s
build (3.13, no, windows-11-arm)	6m 18s
	2h 3m 6s

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