How do I print a hash in perl

demisheep has asked for the wisdom of the Perl Monks concerning the following question:

How do I print $stopwords? It seems to be a string ($) but when I print it I get: "HASH(0x8B694)" with the memory address changing each run.

I am using Lingua::StopWords and I simply want to print the stop words it's using so I know for sure what stop words are there. I would like to print these two a file.

Here is the code:

use Lingua::StopWords qw( getStopWords );

open(TEST, ">results_stopwords.txt") or die("Unable to open requested 
+file.");
my $stopwords = getStopWords('en');

print $stopwords;
[download]

I've tried:

my @temp = $stopwords;
print "@temp";
[download]

But that doesn't work. Help!

Last note: I know there is a list of stop words for Lingua::StopWords, but I am using the (en) and I just want to make absolute sure what stop words I am using, so that is why I want to print it and ideally I want to print it to a file which the file part I should already know how to do.

Comment on How do I print a hash in perl Select or Download Code

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Re: How do I print a hash in perl by Kenosis (Priest) on Nov 02, 2012 at 19:55 UTC
`getStopWords('en')` returns a hash reference that needs to be dereferenced for printing (the keys are the stopwords): `use strict; use warnings; use Lingua::StopWords qw( getStopWords ); my $stopwords = getStopWords('en'); print "$_\n" for sort keys %$stopwords;` [download] Partial output: `a about above after again against all am an and any are aren't ...` [download]	[reply] [d/l] [select]
Re^2: How do I print a hash in perl by demisheep (Initiate) on Nov 09, 2012 at 16:52 UTC
Thank you! That worked perfectly!	[reply]
Re: How do I print a hash in perl by toolic (Bishop) on Nov 02, 2012 at 19:55 UTC
It looks like $stopwords is a hash reference. Tip #4 from the Basic debugging checklist, try: `use Data::Dumper; print Dumper($stopwords);` [download] See also: perldsc	[reply] [d/l]
Re: How do I print a hash in perl by aitap (Curate) on Nov 02, 2012 at 20:03 UTC
`$stopwords` is a hash reference, not just a hash. See perlreftut and perlref for information about how to work with references. Sorry if my advice was wrong.	[reply] [d/l]