Import hashlib in HashField.db_type

Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

diff --git a/apps/patchwork/models.py b/apps/patchwork/models.py
index f354acbdc96b038742d1b06f69c8bc9b628bfbbf..b4161c73e9044d963788013bc8317535414d7f19 100644 (file)
--- a/apps/patchwork/models.py
+++ b/apps/patchwork/models.py
@@ -192,6 +192,7 @@ class HashField(models.Field):
 
     def db_type(self):
         if self.hashlib:
+            import hashlib
             n_bytes = len(hashlib.new(self.algorithm).digest())
         else:
             n_bytes = len(self.hash_constructor().digest())