def run(files, temp_folder):
errors = []<EOL>for py_file in filter_python_files(files):<EOL><INDENT>b = bash('<STR_LIT>'.format(py_file))<EOL>if b.stderr:<EOL><INDENT>b = bash('<STR_LIT>'.format(file=py_file))<EOL>errors.append(b.value())<EOL><DEDENT><DEDENT>return "<STR_LIT:\n>".join(errors)<EOL>
Check to see if python files are py3 compatible