# HG changeset patch
# User Henry S. Thompson <ht@inf.ed.ac.uk>
# Date 1685393833 -3600
# Node ID 10f17205908fe09dd6bdd5efce539b7b1a25e4da
# Parent  44fea514ca45232c24b06e3ca5265db1a3839c86
debug info for bad subdict

diff -r 44fea514ca45 -r 10f17205908f mailer.py
--- a/mailer.py	Sun Feb 19 16:44:06 2023 +0000
+++ b/mailer.py	Mon May 29 21:57:13 2023 +0100
@@ -402,7 +402,12 @@
 for l in addrFile:
   addrFields=l.rstrip().split('\t')
   if doSub:
-    bodyPlus=body%subDict(addrFields)
+    try:
+      bodyPlus=body%subDict(addrFields)
+    except KeyError:
+      print("can't subDict",repr(subDict(addrFields)),
+            body)
+      usage('-S')
   else:
     bodyPlus=body
   if signature is not None: