def clean_build(self):
        if not self.cleaned_data["build"]:
            raise ValidationError("You must specify a build to test.")

        return self.cleaned_data["build"]
Install dispatcher subsytem on server host
dataset/ETHPy150Open mozilla/moztrap/moztrap/view/runtests/forms.py/EnvironmentBuildSelectionForm.clean_build--crossover with--dataset/ETHPy150Open mikrosimage/OpenRenderManagement/fabfile.py/deploy_server