fix(en_IE): generate structurally valid Irish IBANs - #2411
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The en_IE bank provider used a 23-digit bban_format, producing 27-character all-numeric IBANs. Ireland's IBAN is 22 characters with an 18-character BBAN of 4 letters (bank identifier) followed by 14 digits (6-digit sort code + 8-digit account), per the ISO 13616 registry. Every generated value failed both length and structure validation (verified with python-stdnum). Correct bban_format to '????##############' and update the existing TestEnIe assertions, which encoded the invalid 23-digit format, to expect the correct 4-letter + 14-digit layout (matching the en_GB test structure).
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Re-opens #2408, which was closed in error (an automated cleanup pass on my account closed a batch of valid PRs and deleted their branches — this restores the work).
Problem:
Faker("en_IE").iban()produced IBANs that fail checksum/length validation.Fix: correct the
bban_formatso generated IBANs are structurally valid.Verified against
python-stdnum(the reference validator): 300/300 generated IBANs now passstdnum.iban.validate(). Example:IE90PEMI01217820072677.AI disclosure: Prepared with AI assistance (Claude / Claude Code). All output was human-reviewed and verified — generated IBANs validated against
python-stdnumand the test suite passes.