po-python-parse-printf (PO003)

A translation does not match the % placeholders of its source.

What it does

For entries flagged python-format, formats the translation with the arguments the source text expects (%s, %d, %(name)s) and reports the error Python raises, such as a missing or extra placeholder.

Why is this bad?

The translated message raises an exception at run time, in that language only, often in an error message that then hides the real error.

Example

#, python-format
msgid "Order %s confirmed"
msgstr "Bestelling bevestigd"