reading optional configuration from a file

[Matt Joiner]

    REMOTE_HOST = 'localhost'    REMOTE_PORT = 20000    try:
from .settings import *    except ImportError:        pass
This works? If you're using an old version of Python you may need to
mess about with __future__.

On Thu, Nov 24, 2011 at 10:56 PM, Ulrich Eckhardt
<ulrich.eckhardt at dominolaser.com> wrote:
> Hi!
>
> I have a few tests that require a network connection. Typically, the target
> will be localhost on port 20000. However, sometimes these settings differ,
> so I want to be able to optionally set them.
>
> What I'm currently doing is this:
>
>    try:
>        from settings import REMOTE_HOST, REMOTE_PORT
>    except ImportError:
>        REMOTE_HOST = 'localhost'
>        REMOTE_PORT = 20000
>
> This works fine. However, there are actually a few more settings that can be
> overridden, so I changed the whole thing to this:
>
>    try:
>        from settings import *
>        if not 'REMOTE_HOST' in locals():
>            REMOTE_HOST = 'localhost'
>        if not 'REMOTE_PORT' in locals():
>            REMOTE_PORT = 20000
>    except ImportError:
>        REMOTE_HOST = 'localhost'
>        REMOTE_PORT = 20000
>
> Yes, wildcard imports are dangerous, but that's something I don't mind
> actually, this is an internal tool for clueful users. Still, this is ugly,
> since the defaults are stored redundantly, so I went to this variant:
>
>    REMOTE_HOST = 'localhost'
>    REMOTE_PORT = 20000
>    try:
>        from settings import *
>    except ImportError:
>        pass
>
> Now, in order to avoid ambiguities, I thought about using relative imports,
> but there I'm stomped because wildcard imports are not supported for
> relative imports, it seems.
>
>
> How would you do it? Any other suggestions?
>
> Cheers!
>
> Uli
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>