diff -Nru /tmp/szNYmRk7U2/python-apt-0.6.19ubuntu9/apt/progress.py /tmp/3d93aLhkMl/python-apt-0.6.19ubuntu9.1/apt/progress.py
--- /tmp/szNYmRk7U2/python-apt-0.6.19ubuntu9/apt/progress.py	2006-09-18 18:26:48.000000000 +0200
+++ /tmp/3d93aLhkMl/python-apt-0.6.19ubuntu9.1/apt/progress.py	2006-10-27 10:42:06.000000000 +0200
@@ -175,7 +175,12 @@
                 if self.read.endswith("\n"):
                     s = self.read
                     #print s
-                    (status, pkg, percent, status_str) = string.split(s, ":")
+                    try:
+                        (status, pkg, percent, status_str) = string.split(s, ":",3)
+                    except ValueError, e:
+                        # silently ignore lines that can't be parsed
+                        self.read = ""
+                        return
                     #print "percent: %s %s" % (pkg, float(percent)/100.0)
                     if status == "pmerror":
                         self.error(pkg,status_str)
diff -Nru /tmp/szNYmRk7U2/python-apt-0.6.19ubuntu9/debian/changelog /tmp/3d93aLhkMl/python-apt-0.6.19ubuntu9.1/debian/changelog
--- /tmp/szNYmRk7U2/python-apt-0.6.19ubuntu9/debian/changelog	2006-10-12 14:27:34.000000000 +0200
+++ /tmp/3d93aLhkMl/python-apt-0.6.19ubuntu9.1/debian/changelog	2006-10-27 10:42:06.000000000 +0200
@@ -1,3 +1,9 @@
+python-apt (0.6.19ubuntu9.1) edgy-updates; urgency=low
+
+  * protect against not-parsable strings send from dpkg (lp: 68553)
+
+ -- Michael Vogt <michael.vogt@ubuntu.com>  Fri, 27 Oct 2006 10:41:44 +0200
+
 python-apt (0.6.19ubuntu9) edgy; urgency=low
 
   * Reupload to restore dependency on python-central.