diff -r eaae9539e910 -r efee419b7a2d pgtools/pgmanager.py
--- a/pgtools/pgmanager.py	Thu May 26 18:09:05 2011 +0200
+++ b/pgtools/pgmanager.py	Mon Jul 18 17:39:37 2011 +0200
@@ -151,7 +151,7 @@
     def create_conn(self, name='default', isolation_level=None, dsn=None, **kw):
         '''Create named connection.'''
         if name in self.conn_known:
-            raise PgManagerError('Connection name "%s" already registered.', name)
+            raise PgManagerError('Connection name "%s" already registered.' % name)
 
         if dsn is None:
             dsn = ' '.join([x[0]+'='+str(x[1]) for x in kw.items()])
@@ -179,7 +179,7 @@
         
         '''
         if not name in self.conn_known:
-            raise PgManagerError('Connection name "%s" not registered.', name)
+            raise PgManagerError('Connection name "%s" not registered.' % name)
 
         self.close_conn(name)
 
@@ -191,7 +191,7 @@
         self.lock.acquire()
         try:
             if not name in self.conn_known:
-                raise PgManagerError("Connection name '%s' not registered.", name)
+                raise PgManagerError("Connection name '%s' not registered." % name)
 
             conn = None
             while len(self.conn_pool[name]) and conn is None:
@@ -222,7 +222,7 @@
         self.lock.acquire()
         try:
             if not name in self.conn_known:
-                raise PgManagerError("Connection name '%s' not registered.", name)
+                raise PgManagerError("Connection name '%s' not registered." % name)
 
             if len(self.conn_pool[name]) >= self.conn_known[name].keep_open:
                 conn.close()