Refs #29501 -- Made dbshell catch more specific FileNotFoundError.

Author: adamchainz

django/core/management/commands/dbshell.py

@@ -20,11 +20,11 @@ def handle(self, **options):
  connection = connections[options['database']]
  try:
  connection.client.runshell()
- except OSError:
- # Note that we're assuming OSError means that the client program
- # isn't installed. There's a possibility OSError would be raised
- # for some other reason, in which case this error message would be
- # inaccurate. Still, this message catches the common case.
+ except FileNotFoundError:
+ # Note that we're assuming the FileNotFoundError relates to the
+ # command missing. It could be raised for some other reason, in
+ # which case this error message would be inaccurate. Still, this
+ # message catches the common case.
  raise CommandError(
  'You appear not to have the %r program installed or on your path.' %
  connection.client.executable_name