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I have the following code: ... sub setImage { my $self=shift; my $filename=shift; unless(-r $filename) { warn \"File $filename not found\";
How do I check if an object is an instance of a Named tupl开发者_如何学Ce?Calling the function collections.namedtuple gives you a new type that\'s a subclass of tuple (and no other classes) with a mem
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