Fix modifying powered-on machines.

svn path=/trunk/packages/invirt-web/; revision=2815

diff --git a/code/main.py b/code/main.py
index ecf0305..7044167 100755 (executable)
--- a/code/main.py
+++ b/code/main.py
@@ -520,9 +520,9 @@ def modifyDict(username, state, machine_id, fields):
     olddisk = {}
     session.begin()
     try:
-        kws = dict([(kw, fields[kw]) for kw in
+        kws = dict((kw, fields[kw]) for kw in
          'owner admin contact name description memory vmtype disksize'.split()
-                    if fields[kw]])
+                    if fields.get(kw))
         kws['machine_id'] = machine_id
         validate = validation.Validate(username, state, **kws)
         machine = validate.machine