cgi.py: Don't crash if we have three values for a parameter.

The first time we see a parameter, we add it to `PARAMDICT'.  The second
time, we remove it again because it's multivalued.  The third time, we
try to remove it again, and that fails because it's already gone.

diff --git a/cgi.py b/cgi.py
index cfa26f7725ec55faf0e13849ac5b0ef3fd2ce04e..69b90386b36ae99638697643e737cc98eb8e11b6 100644 (file)
--- a/cgi.py
+++ b/cgi.py
@@ -419,7 +419,8 @@ def cgiparse():
     else:
       PARAM.append((k, v))
       if k in seen:
     else:
       PARAM.append((k, v))
       if k in seen:

-        del PARAMDICT[k]
+        try: del PARAMDICT[k]
+        except KeyError: pass

       else:
         PARAMDICT[k] = v
         seen.add(k)
       else:
         PARAMDICT[k] = v
         seen.add(k)