storage: Make pylint happier.

e2cfbf99 · Vincent Pelletier · 0c91a324 · e2cfbf99
Commit e2cfbf99 authored Apr 01, 2019 by Vincent Pelletier
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caucase/storage.py caucase/storage.py +6 -0

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--- a/caucase/storage.py
+++ b/caucase/storage.py
@@ -32,6 +32,12 @@ __all__ = ('SQLite3Storage', )
 DAY_IN_SECONDS = 60 * 60 * 24

 class NoReentryConnection(sqlite3.Connection):
+  """
+  Refuse to start an already started transaction.
+
+  Allows detecting code bugs which would lead to non-atomic updates (partial
+  outer transaction getting committed by an inner transaction).
+  """
  __entered = False

  def __enter__(self):