Correct failing regexes: . matched any char

journals/regexes.py

@@ -10,10 +10,10 @@ REGEX_CHOICES = '|'.join([j.doi_label for j in Journal.objects.all()])
 
 # Regex used for URLs of specific Publications and for
 # doi validation during the publication process.
-PUBLICATION_DOI_REGEX = '({})'.format(REGEX_CHOICES)
-PUBLICATION_DOI_REGEX += '(.\w+(.[0-9]+(.[0-9]{3,})?)?)?'
+PUBLICATION_DOI_REGEX = r'({})'.format(REGEX_CHOICES)
+PUBLICATION_DOI_REGEX += r'(\.\w+(\.[0-9]+(\.[0-9]{3,})?)?)?'
 PUBLICATION_DOI_VALIDATION_REGEX = PUBLICATION_DOI_REGEX
-DOI_DISPATCH_REGEX = '(?P<journal_tag>{})'.format(REGEX_CHOICES)
-DOI_DISPATCH_REGEX += '(.(?P<part_1>\w+)(.(?P<part_2>[0-9]+)(.(?P<part_3>[0-9]{3,}))?)?)?'
+DOI_DISPATCH_REGEX = r'(?P<journal_tag>{})'.format(REGEX_CHOICES)
+DOI_DISPATCH_REGEX += r'(\.(?P<part_1>\w+)(\.(?P<part_2>[0-9]+)(\.(?P<part_3>[0-9]{3,}))?)?)?'
 
-DOI_ISSUE_REGEX = '(?P<doi_label>({}).\w+(.[0-9]+)?)'.format(REGEX_CHOICES)
+DOI_ISSUE_REGEX = r'(?P<doi_label>({})\.\w+(\.[0-9]+)?)'.format(REGEX_CHOICES)