# HG changeset patch
# User Henry S. Thompson <ht@inf.ed.ac.uk>
# Date 1694106235 -3600
# Node ID 009e633eb804dc6ce4c3cfae3f5bfde8019a1674
# Parent  25bd398a8035b55855a5e3670b2b1b9a68f910b4
last version before giving up on approach based only on key and datestamp

diff -r 25bd398a8035 -r 009e633eb804 bin/merge_date.py
--- a/bin/merge_date.py	Wed Sep 06 18:51:21 2023 +0100
+++ b/bin/merge_date.py	Thu Sep 07 18:03:55 2023 +0100
@@ -118,7 +118,7 @@
                         (b'\n     '.join(dfq)).decode('ascii'),
                         xkey1, xkey2, FN, XCNT, DCNT, xl),
               file=sys.stderr)
-        breakpoint()
+        raise ValueError
       NF.write(xl)
       continue
     NF.write(xkey)