ForeignKey ignore not work when use self as model

[NateScarlet]

from django.db import models


class Person(models.Model):
    parent = models.ForeignKey('self', on_delete=models.SET_NULL, null=True)

    def get_grandparent(self):
        return self.parent.parent

Got [pylint] Instance of 'ForeignKey' has no 'parent' member [E1101]

when change model to 'Person', this warning will disappear

pip freeze:

aniso8601==3.0.2
astroid==2.1.0
atomicwrites==1.2.1
attrs==18.2.0
autopep8==1.4.3
certifi==2018.11.29
cgtwq==3.0.0a5
chardet==3.0.4
colorama==0.4.1
dataclasses==0.6
Django==2.1.3
django-cors-headers==2.4.0
django-environ==0.4.5
django-extensions==2.1.4
django-filter==2.0.0
django-graphql-jwt==0.2.0
graphene==2.1.3
graphene-django==2.2.0
graphene-django-tools==0.12.0
graphql-core==2.1
graphql-relay==0.4.5
idna==2.7
isodate==0.6.0
isort==4.3.4
lazy-object-proxy==1.3.1
mccabe==0.6.1
more-itertools==4.3.0
oauthlib==2.1.0
pluggy==0.8.0
promise==2.2.1
psutil==5.4.7
psycopg2==2.7.6.1
py==1.7.0
pycodestyle==2.4.0
PyJWT==1.6.4
pylint==2.2.2
pylint-django==2.0.4
pylint-plugin-utils==0.4
pypinyin==0.33.2
pytest==4.0.1
pytest-django==3.4.4
pytz==2018.7
Qt.py==1.1.0
requests==2.19.1
rope==0.11.0
Rx==1.6.1
sentry-sdk==0.5.5
singledispatch==3.4.0.3
six==1.11.0
snapshottest==0.5.0
termcolor==1.1.0
urllib3==1.23
websocket-client==0.53.0
wlf==0.5.2
wrapt==1.10.11

[atodorov]

Does self, without the quotes work:

 parent = models.ForeignKey(self, on_delete=models.SET_NULL, null=True)

pylint-django is really having troubles with related fields that are referenced as strings, see #142

[NateScarlet]

Does self, without the quotes work:

 parent = models.ForeignKey(self, on_delete=models.SET_NULL, null=True)

pylint-django is really having troubles with related fields that are referenced as strings, see #142

that will be Undefined variable 'self'