Don't crash when there is no match

web_view.py

@@ -11,7 +11,7 @@ import werkzeug
 from requests_oauthlib import OAuth1Session
 from werkzeug.wrappers.response import Response
 
-from add_links import api, core, mediawiki_api, wikidata_oauth
+from add_links import api, core, mediawiki_api, mediawiki_oauth
 from add_links.match import NoMatch, get_diff, get_match
 
 app = flask.Flask(__name__)
@@ -83,7 +83,7 @@ def search_no_link(q: str) -> tuple[int, list[Hit]]:
 @app.before_request
 def global_user() -> None:
     """Make username available everywhere."""
-    flask.g.user = wikidata_oauth.get_username()
+    flask.g.user = mediawiki_oauth.get_username()
 
 
 @app.route("/")
@@ -268,7 +268,7 @@ def article_page(url_title: str) -> str | Response:
         hit_title = flask.request.form["hit"]
         try:
             do_save(from_title, hit_title)
-        except wikidata_oauth.LoginNeeded:
+        except mediawiki_oauth.LoginNeeded:
             return flask.redirect(flask.url_for("start_oauth"))
         return flask.redirect(
             flask.url_for("article_page", url_title=url_title, after=hit_title)
@@ -283,10 +283,15 @@ def article_page(url_title: str) -> str | Response:
 
     by_title = {hit["title"]: hit for hit in hits}
 
+    found = None
     if article_title in by_title:
         hit = by_title[article_title]
-        found = get_diff(from_title, hit["title"], None)
+        try:
-    else:
+            found = get_diff(from_title, hit["title"], None)
+        except NoMatch:
+            pass
+
+    if not found:
         after = flask.request.args.get("after")
         if after:
             print(after)
@@ -316,7 +321,7 @@ def article_page(url_title: str) -> str | Response:
 
 def do_save(title: str, hit_title: str) -> str:
     """Update page on Wikipedia."""
-    token = wikidata_oauth.get_token()
+    token = mediawiki_oauth.get_token()
 
     found = get_match(title, hit_title, None)