diff options
Diffstat (limited to 'cliff/help.py')
| -rw-r--r-- | cliff/help.py | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/cliff/help.py b/cliff/help.py index 49cfd16..9a7f848 100644 --- a/cliff/help.py +++ b/cliff/help.py @@ -1,4 +1,5 @@ import argparse +import logging import sys from .command import Command @@ -12,13 +13,22 @@ class HelpAction(argparse.Action): instance, passed in as the "default" value for the action. """ def __call__(self, parser, namespace, values, option_string=None): + log = logging.getLogger(__name__) app = self.default parser.print_help(app.stdout) app.stdout.write('\nCommands:\n') command_manager = app.command_manager for name, ep in sorted(command_manager): - factory = ep.load() - cmd = factory(self, None) + try: + factory = ep.load() + except Exception as err: + app.stdout.write('Could not load %r\n' % ep) + continue + try: + cmd = factory(self, None) + except Exception as err: + app.stdout.write('Could not instantiate %r: %s\n' % (ep, err)) + continue one_liner = cmd.get_description().split('\n')[0] app.stdout.write(' %-13s %s\n' % (name, one_liner)) sys.exit(0) |