def _installPkgs(self, builtpkgnames, output = ''):
        rc, str = self.captureOutput(self.updatePkg, self.rootDir,
                                     builtpkgnames, depCheck=False)
        assert re.match(output, str), (output, str) %'%r != %r'
dataset/ETHPy150Open sassoftware/conary/conary_test/cvctest/buildtest/cookmsicapsuletest.py/CookTestWithMSICapsules._installPkgs/swapped operands of `%`