Config files with different types
ldo at geek-central.gen.new_zealand
Fri Jul 3 06:39:46 CEST 2009
In message <mailman.2506.1246557392.8015.python-list at python.org>, Zach
> I want to be able to look at the value and determine what type it
> SHOULD be. Right now, configs['overwrite'] = 'true' (a string) when
> it might be more useful as a boolean.
Typically the type should be what you expect, not what is given. For
example, it doesn't make sense for your configs["overwrite"] setting to be
"red", does it?
A reasonable solution might be to have a table of expected types for each
config item keyword, e.g.
configs_types = \
"overwrite" : lambda x : x not in set("nNfF"),
Then you can just do something like
configs[keyword] = configs_types[keyword](configs[keyword])
with appropriate trapping of ValueError exceptions.
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