print $some_new_hash{"andrew"}; # Causes Error
[download]

That's because the key you have in the hash is qq{"andrew"\n}, not qq{andrew}.

You would need something like:

%some_new_hash = map {chomp; s#^"##; s#"$##; $_} <DATAFILE>;
[download]

which would lose the newlines and the double quotes of each line read from the file before being put into the hash.

Hope this helps.

Liz