From http://coverage.readthedocs.io/en/coverage-4.3.4/cmd.html the coverage analysis report is done by:
$ coverage report -m
Name Stmts Miss Cover Missing
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my_program.py 20 4 80% 33-35, 39
my_module.py 15 2 86% 8, 12
my_other_module.py 56 6 89% 17-23
-------------------------------------------------------
TOTAL 91 12 87%
But, what is a statement ("Stmts") in this tool?