convert int index to alphabet letter

Archives Ansible Project
1

Hi everyone,
(It’s more a jinja quesion but…)

Is there a way to convert a int to an alphabet letter (1 → a, 2 → b…)

More aesthetic than (with a filter and less useless variables):

`

letters: ‘abcdefghijklmnopqrstuvwxyz’
index: “{{ groups[‘group1’].index(inventory_hostname) }}”

index_letter: “{{ letters[index] }}”
`

Thanks

2

There is no existing filter that does this, but nothing prevents you
from writing one...

3

Something like this in your filters file:

def num2let(arg):
    return 'abcdefghijklmnopqrstuvwxyz'[arg]
def num2let0(arg):
    return 'abcdefghijklmnopqrstuvwxyz'[arg-1]
class FilterModule(object):
    def filters(self):
        return {
                'num2let': num2let,
                'num2let0': num2let0,
                }

Then it's:

index: "{{ groups['group1'].index(inventory_hostname) | num2let0 }}"