Fix databases -> dialects

The change in I5343a2d270ed5a8c654b9fe13dff40cdf54649ed
left the name "databases" present in one spot, which is usually
not reached unless tests are being run on only partial files
where not every dialect has been imported.

Change-Id: I5a8776b412eaf2476f8a93eebc31448b6f9218ee

diff --git a/lib/sqlalchemy/testing/engines.py b/lib/sqlalchemy/testing/engines.py
index 76112b3a27c7dc7f1c366ba3408f7244fcca8839..910af5876b3aa7cc2f0264271229e85379579e2c 100644 (file)
--- a/lib/sqlalchemy/testing/engines.py
+++ b/lib/sqlalchemy/testing/engines.py
@@ -167,7 +167,7 @@ def all_dialects(exclude=None):
         mod = getattr(d, name, None)
         if not mod:
             mod = getattr(
-                __import__("sqlalchemy.dialects.%s" % name).databases, name
+                __import__("sqlalchemy.dialects.%s" % name).dialects, name
             )
         yield mod.dialect()