def run(files, temp_folder):
try:<EOL><INDENT>import isort  <EOL><DEDENT>except ImportError:<EOL><INDENT>return NO_ISORT_MSG<EOL><DEDENT>py_files = filter_python_files(files)<EOL>return bash('<STR_LIT>'.format('<STR_LIT:U+0020>'.join(py_files))).value()<EOL>
Check isort errors in the code base.

    For the --quiet option, at least isort >= 4.1.1 is required.
    https://github.com/timothycrosley/isort/blob/develop/CHANGELOG.md#411