-# open a filie to write all the output
-output = codecs.open("hp_wiki.csv", "wb", "utf-8")
-output.write(",".join(["title", "user", "timestamp", "size", "anon", "minor", "revid"]) + "\n")
+# r = requests.get("http://tools.wmflabs.org/catscan2/catscan2.php?depth=10&categories=Harry Potter&doit=1&format=json"
+
+r = requests.get(url_catscan, params=parameters)
+articles_json = r.json()
+articles = articles_json["*"][0]["a"]["*"]
+
+# open a file to write all the output
+output = open("hp_wiki.tsv", "w", encoding="utf-8")
+output.write("\t".join(["title", "user", "timestamp", "size", "anon", "minor", "revid"]) + "\n")