What's wrong with this 2-dimensional hash? It says that $gra{$k} is not a hash, but it should be the other dimension of the hash. Any ideas what I'm doing wrong? 
my %gra;
$gra{"test"}{"A"}=44;
$gra{"test"}{"B"}=41;
$gra{"foo"}{"A"}=43;
for my $k (keys %gra) {
        print $k,"\n";
        for my $i (keys $gra{$k}) {
              my $v=$gra{$k}{i};
              print "$i: $v\n";
        }
}

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In reply to Two-dimensional hash problem by nyk

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