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-rw-r--r--django/db/models/sql/query.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/django/db/models/sql/query.py b/django/db/models/sql/query.py
index 118bc1e14f..53dad608bf 100644
--- a/django/db/models/sql/query.py
+++ b/django/db/models/sql/query.py
@@ -1655,7 +1655,7 @@ class Query(object):
except MultiJoin:
raise FieldError("Invalid field name: '%s'" % name)
except FieldError:
- if name.find(LOOKUP_SEP) != -1:
+ if LOOKUP_SEP in name:
# For lookups spanning over relationships, show the error
# from the model on which the lookup failed.
raise