On 1/7/19 3:38 PM, Barry wrote: > >> On 7 Jan 2019, at 03:06, Richard Damon <rich...@damon-family.org> wrote: >> >> For something like reading options from a config file, I would use a >> call that specifies the key and a value to use if the key isn't present, >> and inside that function I might use a try to handle any exception >> caused when processing the key, and it could return the default. > Most config file APIs I have used have has_section and has_key type functions > that remove the need to catch exceptions. > > What config file API are you using htat is missing this? > > Barry > I was talking about if I was to roll my own, I would start by calling a function I was writing with the key / default value, and it might have a try block so any error that threw an exception would cause it to fall back to the default value.
The OP is obviously obviously thinking of something a bit off standard, or he would just be using a standard config reader, and not need this. Maybe the issue is parsing the data from the config line into some internal format, and wanting to catch bad values, like a line that said "nfiles = 42balloons" that throws when it is expecting just a number. -- Richard Damon _______________________________________________ Python-ideas mailing list Python-ideas@python.org https://mail.python.org/mailman/listinfo/python-ideas Code of Conduct: http://python.org/psf/codeofconduct/
