diff --git a/archivebox/core/settings.py b/archivebox/core/settings.py
index 9c716c16..746d6dbd 100644
--- a/archivebox/core/settings.py
+++ b/archivebox/core/settings.py
@@ -71,7 +71,7 @@ AUTHENTICATION_BACKENDS = [
 DEBUG_TOOLBAR = False
 if DEBUG:
     try:
-        import debug_toolbar
+        import debug_toolbar   # noqa
         DEBUG_TOOLBAR = True
     except ImportError:
         pass
diff --git a/archivebox/index/schema.py b/archivebox/index/schema.py
index 889d74b1..00831e19 100644
--- a/archivebox/index/schema.py
+++ b/archivebox/index/schema.py
@@ -178,7 +178,6 @@ class Link:
             raise
     
     def _asdict(self, extended=False):
-        from core.models import Snapshot
         info = {
             'schema': 'Link',
             'url': self.url,