[pypy-svn] r78377 - pypy/trunk/pypy/objspace/std

[arigo at codespeak.net]

Author: arigo
Date: Wed Oct 27 19:57:16 2010
New Revision: 78377

Modified:
   pypy/trunk/pypy/objspace/std/listobject.py
Log:
Document this assert (thanks amaury).


Modified: pypy/trunk/pypy/objspace/std/listobject.py
==============================================================================
--- pypy/trunk/pypy/objspace/std/listobject.py	(original)
+++ pypy/trunk/pypy/objspace/std/listobject.py	Wed Oct 27 19:57:16 2010
@@ -283,7 +283,7 @@
         elif start >= 0:
             del items[start:start+delta]
         else:
-            assert delta==0
+            assert delta==0   # start<0 is only possible with slicelength==0
     elif len2 != slicelength:  # No resize for extended slices
         raise operationerrfmt(space.w_ValueError, "attempt to "
               "assign sequence of size %d to extended slice of size %d",