# HG changeset patch
# User Julien Cristau <julien.cristau@logilab.fr>
# Date 1323091903 -3600
# Node ID 91868ec92391f2220789ef6136cd568bc498f69b
# Parent  e5858a4a124457c97df92271aaf71a2262c48d08
[migration] Ignore IOError from readline.write_history_file (closes #2106621)

We already ignore them when reading the histfile, no reason writing it
back should be any different.

diff -r e5858a4a1244 -r 91868ec92391 migration.py
--- a/migration.py	Mon Dec 05 14:31:41 2011 +0100
+++ b/migration.py	Mon Dec 05 14:31:43 2011 +0100
@@ -269,7 +269,10 @@
         def unicode_raw_input(prompt):
             return unicode(raw_input(prompt), sys.stdin.encoding)
         interact(banner, readfunc=unicode_raw_input, local=local_ctx)
-        readline.write_history_file(histfile)
+        try:
+            readline.write_history_file(histfile)
+        except IOError:
+            pass
         # delete instance's confirm attribute to avoid questions
         del self.confirm
         self.need_wrap = True