PYTHONPATH=. contrib/check_i18n.py ./i18n.py 
Checking for invalid i18n string...
Checking for invalid i18n string successfully
./model/vms.py:193:41: invalid syntax
            f'/plugins/kimchi/vms/{name}', self._create_task, data).id
                                        ^
./model/interfaces.py:48:69: invalid syntax
                f'Invalid filter _inuse. _inuse: {_inuse}. Supported'
                                                                    ^
./model/storagetargets.py:55:70: invalid syntax
                        f'Query storage pool source fails because of '
                                                                     ^
./model/storagepools.py:114:74: invalid syntax
                        f'Fatal: Unable to find storage pool {pool_name}.')
                                                                         ^
./model/libvirtevents.py:97:67: invalid syntax
            wok_log.error(f'register attach event failed: {str(e)}')
                                                                  ^
./model/storagevolumes.py:100:51: invalid syntax
                name = f'upload-{int(time.time())}'
                                                  ^
./model/hostdev.py:194:52: invalid syntax
        return globals()[f'_get_{dev_type}_dev_info'](info)
                                                   ^
./model/cpuinfo.py:63:77: invalid syntax
            wok_log.info(f'Unable to get CPU topology capabilities: {str(e)}')
                                                                            ^
./model/host.py:254:68: invalid syntax
            unknown_dev = f'usb_vendor_{evendor}_product_{eproduct}'
                                                                   ^
./model/config.py:47:42: invalid syntax
class CapabilitiesModel(object, metaclass=Singleton):
                                         ^
./model/networks.py:70:74: invalid syntax
                wok_log.error(f'Fatal: Unable to find network {net_name}.')
                                                                         ^
./model/virtviewerfile.py:42:66: invalid syntax
        file_contents += f'password={params["graphics_passwd"]}\n'
                                                                 ^
./scan.py:59:75: invalid syntax
            msg = f'Exception {e} occured when cleaning stale pool, ignore'
                                                                          ^
./tests/test_rest.py:350:49: invalid syntax
        resp = self.request(f'{quoted_uri}/start', '{}', 'POST')
                                                ^
./tests/test_template.py:226:51: invalid syntax
            f'/plugins/kimchi/templates/{new_name}')
                                                  ^
./tests/test_livemigration.py:278:55: invalid syntax
                self.fail(f'Migration test failed: {e}')
                                                      ^
./tests/test_model_storagepool.py:68:52: invalid syntax
                name = f'kīмсhī-storagepool-{i}'
                                                   ^
./tests/test_mock_storagevolume.py:103:59: invalid syntax
                f'/plugins/kimchi/storagepools/{pool_name}')
                                                          ^
./tests/test_model_network.py:60:71: invalid syntax
        uri = urllib.parse.quote(f'/plugins/kimchi/networks/{net_name}')
                                                                      ^
./tests/test_model_storagevolume.py:68:49: invalid syntax
                f'/plugins/kimchi/tasks/{taskid}').read().decode('utf-8')
                                                ^
./tests/test_mock_storagepool.py:106:75: invalid syntax
            uri = urllib.parse.quote(f'/plugins/kimchi/storagepools/{name}')
                                                                          ^
./build-aux/generateDepsFiles.py:35:51: invalid syntax
    with open(f'{current_dir}/{os_distro}-pkg-deps', 'w') as fd:
                                                  ^
./serialconsole.py:376:52: invalid syntax
        print(f'usage: ./{sys.argv[0]} <guest_name>')
                                                   ^
./contrib/check_i18n.py:48:31: invalid syntax
            print(f'  {k}: {v}')
                              ^
/usr/bin/pep8 --version
2.5.0
/usr/bin/pep8 --filename '*.py,*.py.in' --exclude="*config.py,*i18n.py,*tests/test_config.py" .
./utils.py:273:5: E722 do not use bare 'except'
make: *** [Makefile:1074: check-local] Error 1