[PATCH 3/6] parsearchive, mail: use repr() to get a human readable exception

[Daniel Axtens]

Currently if we have particular types of error in mail parsing
in parsearchive or parsemail, we print exc.message, which doesn't
always work:

Traceback (most recent call last):
  File "/home/patchwork/patchwork/patchwork/management/commands/parsearchive.py", line 90, in handle
    obj = parse_mail(msg, options['list_id'])
  File "/home/patchwork/patchwork/patchwork/parser.py", line 961, in parse_mail
    raise ValueError("Missing 'Message-Id' header")
ValueError: Missing 'Message-Id' header

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "manage.py", line 11, in <module>
    execute_from_command_line(sys.argv)
  File "/opt/pyenv/versions/3.7.4/lib/python3.7/site-packages/django/core/management/__init__.py", line 381, in execute_from_command_line
    utility.execute()
  File "/opt/pyenv/versions/3.7.4/lib/python3.7/site-packages/django/core/management/__init__.py", line 375, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/opt/pyenv/versions/3.7.4/lib/python3.7/site-packages/django/core/management/base.py", line 323, in run_from_argv
    self.execute(*args, **cmd_options)
  File "/opt/pyenv/versions/3.7.4/lib/python3.7/site-packages/django/core/management/base.py", line 364, in execute
    output = self.handle(*args, **options)
  File "/home/patchwork/patchwork/patchwork/management/commands/parsearchive.py", line 100, in handle
    logger.warning('Invalid mail: %s', exc.message)
AttributeError: 'ValueError' object has no attribute 'message'

repr(exc) will work. Use it.

Signed-off-by: Daniel Axtens <dja at axtens.net>
---
 patchwork/management/commands/parsearchive.py | 2 +-
 patchwork/management/commands/parsemail.py    | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/patchwork/management/commands/parsearchive.py b/patchwork/management/commands/parsearchive.py
index 37db2b0dc007..b7f1ea7313c2 100644
--- a/patchwork/management/commands/parsearchive.py
+++ b/patchwork/management/commands/parsearchive.py
@@ -97,7 +97,7 @@ class Command(BaseCommand):
                 logger.warning('Duplicate mail for message ID %s', exc.msgid)
             except (ValueError, Exception) as exc:
                 errors += 1
-                logger.warning('Invalid mail: %s', exc.message)
+                logger.warning('Invalid mail: %s', repr(exc))
 
             if verbosity < 3 and (i % 10) == 0:
                 self.stdout.write('%06d/%06d\r' % (i, count), ending='')
diff --git a/patchwork/management/commands/parsemail.py b/patchwork/management/commands/parsemail.py
index b0871d211ad0..ea85e3aabb5c 100644
--- a/patchwork/management/commands/parsemail.py
+++ b/patchwork/management/commands/parsemail.py
@@ -70,6 +70,6 @@ class Command(base.BaseCommand):
             logger.warning('Duplicate mail for message ID %s', exc.msgid)
         except (ValueError, Exception) as exc:
             logger.exception('Error when parsing incoming email: %s',
-                             exc.message,
+                             repr(exc),
                              extra={'mail': mail.as_string()})
             sys.exit(1)
-- 
2.20.1