+
+ if (sys.version_info >= (3,) and sys.platform != 'win32' and
+ sys.getfilesystemencoding() in ['ascii', 'ANSI_X3.4-1968']
+ and not params['restrictfilenames']):
+ # On Python 3, the Unicode filesystem API will throw errors (#1474)
+ self.report_warning(
+ u'Assuming --restrict-filenames isnce file system encoding '
+ u'cannot encode all charactes. '
+ u'Set the LC_ALL environment variable to fix this.')
+ params['restrictfilenames'] = True
+