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# (c) 2012, Michael DeHaan <michael.dehaan@gmail.com> # (c) 2017 Ansible Project # GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt) from __future__ import (absolute_import, division, print_function) __metaclass__ = type DOCUMENTATION = """ name: indexed_items author: Michael DeHaan version_added: "1.3" short_description: rewrites lists to return 'indexed items' description: - use this lookup if you want to loop over an array and also get the numeric index of where you are in the array as you go - any list given will be transformed with each resulting element having the it's previous position in item.0 and its value in item.1 options: _terms: description: list of items required: True """ EXAMPLES = """ - name: indexed loop demo ansible.builtin.debug: msg: "at array position {{ item.0 }} there is a value {{ item.1 }}" with_indexed_items: - "{{ some_list }}" """ RETURN = """ _raw: description: - list with each item.0 giving you the position and item.1 the value type: list elements: list """ from ansible.errors import AnsibleError from ansible.plugins.lookup import LookupBase class LookupModule(LookupBase): def __init__(self, basedir=None, **kwargs): self.basedir = basedir def run(self, terms, variables, **kwargs): if not isinstance(terms, list): raise AnsibleError("with_indexed_items expects a list") items = self._flatten(terms) return list(zip(range(len(items)), items))