Vague error on dependency missing

[cpf]

When the bzr explorer was installed but qbzr wasn't, executing 'bzr explorer' ended horribly in:
12897 cpf@nickel ~ % bzr explorer
Unable to load plugin 'explorer' from '/usr/lib/python2.5/site-packages/bzrlib/plugins'
bzr: ERROR: unknown command "explorer"
zsh: exit 3 bzr explorer

It'd be nice to say something related no: "Is qbzr installed?"

[John A Meinel (jameinel)]

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cpf wrote:
> Public bug reported:
>
> When the bzr explorer was installed but qbzr wasn't, executing 'bzr explorer' ended horribly in:
> 12897 cpf@nickel ~ % bzr explorer
> Unable to load plugin 'explorer' from '/usr/lib/python2.5/site-packages/bzrlib/plugins'
> bzr: ERROR: unknown command "explorer"
> zsh: exit 3 bzr explorer
>
> It'd be nice to say something related no: "Is qbzr installed?"

Yeah, right at the beginning of 'explorer/__init__.py' we have:

# These can't be lazily imported currently
from bzrlib.plugins.qbzr.lib.commands import (
    simple_revision_option,
    )

This just needs a try/except sort of thing around it. Though how to
report it to the user may be tricky.

John
=:->

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