On 3/02/21 9:24 am, Dan Stromberg wrote:
But how do you know what exceptions could be raised?
Mostly I find that it's not really necessary to know precisely
which exceptions could be raised.
The way I usually deal with exceptions is:
1. If it descends from OSError, I assume it results from some
external condition, so I catch it at a level where I know what
the user was trying to accomplish and can report it in a
meaningful way. E.g.
def open_connection(address):
try:
return some_library.open_thing(address)
except OSError as e:
tell_user("Couldn't connect to %s: %s" % (address, e))
2. If it's anything else, I assume it's a bug and let it
propagate.
--
Greg
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