If you don't have the more fanciful features of YAML in your input, try YAML::Tiny.

Test.pl 
use strict;
use warnings;
use YAML::Tiny;
my $yaml = YAML::Tiny->read('test.yaml');

[download]
Test.yaml 
---
rootproperty: blah
section:
  one: two
  three: four
  Foo: Bar
  one: again
  empty: ~

[download]
Results: 
D:\>perl test.pl
YAML::Tiny found a duplicate key 'one' in line 'again' at test.pl line
+ 5.

[download]

In reply to Re: duplicate keys in YAML by SuicideJunkie
in thread duplicate keys in YAML by the_dark_lord

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