reorder fields

wikipedia_citations.py

@@ -437,9 +437,9 @@ class WikipediaCitations(datasets.GeneratorBasedBuilder):
                     "title": datasets.Value("string"),
                     "url": datasets.Value("string"),
                     "domain": datasets.Value("string"),
+                    "archiveurl": datasets.Value("string"),
                     "format": datasets.Value("string"),
                     "publisher": datasets.Value("string"),
-                    "archiveurl": datasets.Value("string"),
                     "work": datasets.Value("string"),
                     "isbn": datasets.Value("string"),
                     "journal": datasets.Value("string"),
@@ -576,7 +576,7 @@ class WikipediaCitations(datasets.GeneratorBasedBuilder):
         # remove params
         prefix = url.split("?")[0]
         suffix = prefix.split("/")[-1]
-        f = suffix.split(".")[-1] if "." in suffix else "no format"
+        f = suffix.split(".")[-1] if "." in suffix else None
         return f
 
     def _parse_obj(self, obj, language):
@@ -613,10 +613,10 @@ class WikipediaCitations(datasets.GeneratorBasedBuilder):
                             "template": str(template),
                             "title": params.get("title"),
                             "url": params.get("url"),
+                            "archiveurl": params.get("archiveurl"),
                             "domain": self._get_domain(params.get("url")),
                             "format": self._get_format(params.get("url")),
                             "publisher": params.get("publisher"),
-                            "archiveurl": params.get("archiveurl"),
                             "work": params.get("work"),
                             "isbn": params.get("isbn"),
                             "journal": params.get("journal"),