Fix "unexpected EOF on client connection" errors.

Fixes issue zenoss#5.

README.markdown

@@ -15,8 +15,8 @@ Depending on what version of Zenoss you're running you will need a different
 package. Download the appropriate package for your Zenoss version from the list
 below.
 
- * Zenoss 4.1 - 4.2: [Packages for Zenoss 4][]
- * Zenoss 3.0 - 4.0: [Packages for Zenoss 3][]
+ * Zenoss 4.1 - 4.2: [Packages for Python 2.7][]
+ * Zenoss 3.0 - 4.0: [Packages for Python 2.6][]
 
 Then copy it to your Zenoss server and run the following commands as the zenoss
 user.
@@ -163,6 +163,6 @@ remodeled. This occur once every 12 hours.
 
 
 [Zenoss]: <http://www.zenoss.com/>
-[Packages for Zenoss 4]: <http://zenpacks.zenoss.com/pypi/github/3.2/ZenPacks.zenoss.PostgreSQL/>
-[Packages for Zenoss 3]: <http://zenpacks.zenoss.com/pypi/github/4.2/ZenPacks.zenoss.PostgreSQL/>
+[Packages for Python 2.7]: <http://zenpacks.zenoss.com/pypi/github/4.2/ZenPacks.zenoss.PostgreSQL/>
+[Packages for Python 2.6]: <http://zenpacks.zenoss.com/pypi/github/3.2/ZenPacks.zenoss.PostgreSQL/>
 [git repository]: <https://github.com/zenoss/ZenPacks.zenoss.PostgreSQL>

ZenPacks/zenoss/PostgreSQL/poll_postgres.py

@@ -176,6 +176,8 @@ def getData(self):
                 else:
                     self._data[k] = v
 
+            pg.close()
+
         self._cacheData()
         return self._data
 

ZenPacks/zenoss/PostgreSQL/util.py

@@ -93,10 +93,10 @@ def __init__(self, host, port, username, password, ssl):
         self._ssl = ssl
         self._connections = {}
 
-    def __del__(self):
-        for conn in self._connections.values():
+    def close(self):
+        for value in self._connections.values():
             try:
-                conn.close()
+                value['connection'].close()
             except Exception:
                 pass
 

setup.py

@@ -16,7 +16,7 @@
 # or saved.  Do not modify them directly here.
 # NB: PACKAGES is deprecated
 NAME = "ZenPacks.zenoss.PostgreSQL"
-VERSION = "1.0.4"
+VERSION = "1.0.5"
 AUTHOR = "Zenoss"
 LICENSE = "GPLv2"
 NAMESPACE_PACKAGES = ['ZenPacks', 'ZenPacks.zenoss']