Hi, The warning is raised here [0]. The date_formats should be a list, and in this test is parametrized a string. If a list is set on the date_formats the warning does not emitted.
I created this issue on upstream [1]. What is your opinion? Make an patch or we wait for an upstream response? [0] https://salsa.debian.org/python-team/modules/dateparser/-/blob/master/tests/test_date.py#L302 [1] https://github.com/scrapinghub/dateparser/issues/688 Cheers, Arias Emmanuel @eamanu yaerobi.com