Add a safeguard because I always use -p 8000 by error when I mean --port 8000.

trychange.py

Index: trychange.py
diff --git a/trychange.py b/trychange.py
index b5a98d80ce00e0dc83660c3615dd32cf3a71f5bd..1a1a51047bf82fd8f7df40e07445d4c0994ef509 100755
--- a/trychange.py
+++ b/trychange.py
@@ -656,6 +656,11 @@ def TryChange(argv,
 
   logging.debug(argv)
 
+  if (options.patchlevel is not None and
+      (options.patchlevel < 0 or options.patchlevel > 10)):
+    parser.error(
+        'Have you tried --port instead? You probably confused -p and -P.')

[Dirk Pranke, 2011/10/13 00:46:33]

Nit: I'd probably use something like 100 instead of 10. I've certainly seen more
than 10 patches on some issues.

[M-A Ruel, 2011/10/13 00:47:32]

No, it's patchlevel, like patch -p1, not the number of patchset.

+
   # Strip off any @ in the user, otherwise svn gets confused.
   options.user = options.user.split('@', 1)[0]