From 438bb947893e92455decfaadd739034fe26e192a Mon Sep 17 00:00:00 2001
From: Skip Montanaro <skip@pobox.com>
Date: Thu, 25 Jan 2001 13:47:00 +0000
Subject: [PATCH] fail more completely by deleting dbhash from sys.modules if
 bsddb can't be loaded - prevents second import later from succeeding
 spuriously - mostly of use in regression tests where the module might get
 imported more than once

---
 Lib/dbhash.py | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/Lib/dbhash.py b/Lib/dbhash.py
index 4abd4f03f1e..ad94ed8efa1 100644
--- a/Lib/dbhash.py
+++ b/Lib/dbhash.py
@@ -1,6 +1,12 @@
 """Provide a (g)dbm-compatible interface to bsdhash.hashopen."""
 
-import bsddb
+import sys
+try:
+    import bsddb
+except ImportError:
+    # prevent a second import of this module from spuriously succeeding
+    del sys.modules[__name__]
+    raise
 
 __all__ = ["error","open"]