the output is as followsname stmts exec cover coverage_unittest stats total this basic report lists the files that were executed (our unit test and module it importedthe number of lines of code in each fileand the number that were executed by the test are also listed the two numbers are then combined to estimate the amount of code coverage if we pass the - option to the report commandit will additionally add column that looks like thismissing - - the ranges of lines listed here identify lines in the stats module that were not executed during the test run the example we just ran the code coverage tool on uses the same stats module we created earlier in the howeverit deliberately uses single test that fails to test lot of code in the file here' the testfrom stats import statslist import unittest class testmean(unittest testcase)def test_mean(self)self assertequal(statslist([ , , , , , ]mean() if __name__ ="__main__"unittest main(this code doesn' test the median or mode functionswhich correspond to the line numbers that the coverage output told us were missing