diff -ur python3-defaults-3.2.orig/debpython/depends.py python3-defaults-3.2/debpython/depends.py
--- python3-defaults-3.2.orig/debpython/depends.py	2010-12-24 04:47:49.000000000 +0900
+++ python3-defaults-3.2/debpython/depends.py	2011-03-08 20:14:12.981253997 +0900
@@ -108,7 +108,7 @@
                 # no hardcoded versions, but there's something to compile
                 self.depend(MINPYCDEP)
                 args = ''
-                if details['ext']:
+                if details.get('ext', False):
                     # use smallest and largest version to set range
                     extensions = sorted(details['ext'])
                     vr = (extensions[0], extensions[-1])
@@ -116,7 +116,7 @@
                     vr = options.vrange
                 if vr:
                     args += "-V %s" % vrange_str(vr)
-                    if details['ext']:
+                    if details.get('ext', False):
                         self.depend('|'.join("python%s" %\
                                     vrepr(i) for i in details['ext']))
                     else:  # pure modules only