python manage.py dbshell unhelpful error when postgresql-client not installed

[Aaron C. de Bruyn]

If you try to start a dbshell and don't have the postgresql client installed, you get an unhelpful error message:

aaron@hoth:~/code/sfd$ ./manage.py dbshell
Traceback (most recent call last):
  File "./manage.py", line 11, in <module>
    execute_manager(settings)
  File "/usr/lib/python2.5/site-packages/django/core/management/__init__.py", line 340, in execute_manager
    utility.execute()
  File "/usr/lib/python2.5/site-packages/django/core/management/__init__.py", line 295, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "/usr/lib/python2.5/site-packages/django/core/management/base.py", line 77, in run_from_argv
    self.execute(*args, **options.__dict__)
  File "/usr/lib/python2.5/site-packages/django/core/management/base.py", line 96, in execute
    output = self.handle(*args, **options)
  File "/usr/lib/python2.5/site-packages/django/core/management/base.py", line 178, in handle
    return self.handle_noargs(**options)
  File "/usr/lib/python2.5/site-packages/django/core/management/commands/dbshell.py", line 10, in handle_noargs
    connection.client.runshell()
  File "/usr/lib/python2.5/site-packages/django/db/backends/postgresql/client.py", line 17, in runshell
    os.execvp('psql', args)
  File "/usr/lib/python2.5/os.py", line 353, in execvp
    _execvpe(file, args)
  File "/usr/lib/python2.5/os.py", line 389, in _execvpe
    func(fullname, *argrest)
OSError: [Errno 2] No such file or directory

[Aaron C. de Bruyn]

Sorry, I totally forgot to wrap that in braces and apparently can't edit my own ticket.

[Karen Tracey]

Fixed formatting.

[Adrian Holovaty]

Good call -- we should have a friendlier error message here. I'm on it.

[Adrian Holovaty]

(In [8990]) Fixed #8978 -- We now print a helpful error message for 'manage.py dbshell' if the client executable is not found. Previously we were displaying a traceback