If you want to verify "AB.12" but "ABx12" is also passing, check if the dot is being specified as a literal character. In Python's regular expressions, . usually matches any character except a newline ...
Researchers have released pt13528, an open-source Python library implementing ISO 13528 proficiency testing statistics that ...
While hospitalized, Satoshi had consulted his attending physician several times about things that were a bit difficult to ask ...