Registed datastore environments with atexit.

diff --git a/didex/store.py b/didex/store.py
index cc97a5b..a9bf0cd 100644 (file)
--- a/didex/store.py
+++ b/didex/store.py
@@ -1,4 +1,4 @@
-import threading, pickle, inspect
+import threading, pickle, inspect, atexit
 from . import db, index, cache
 from .db import txnfun
 
@@ -22,11 +22,13 @@ class environment(object):
                 if self.path is None:
                     self.path = self.getpath()
                 self.bk = db.environment(self.path, recover=self.recover)
+                atexit.register(self.close)
             return self.bk
 
     def close(self):
         with self.lk:
             if self.bk is not None:
+                atexit.unregister(self.close)
                 self.bk.close()
                 self.bk = None