django.core.exceptions.ImproperlyConfigured: "^smscodes / ”is not a valid regular expression: unknow

django.core.exceptions.ImproperlyConfigured: "^smscodes / (?P < mobile > 1[345789]\d{9})/$" is not a valid regular expression: unknown extension ?P  at position 13

错误1：所编写的发送短信接口没有在settings中的INSTALLED_APPS=[ ]注册

错误2: 所匹配的正则格式出错（not a valid regular expression）不合法的正则

解决：INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'rest_framework',
    'users.apps.UsersConfig',
    'verifications.apps.VerificationsConfig'
]