Try

action_script/webmention.py

@@ -15,6 +15,8 @@ now = datetime.datetime.now()
 since_data = now - datetime.timedelta(hours=24 * since_days)
 url = f"https://webmention.io/api/mentions.jf2?domain={domain}&token={token}&since={since_data.isoformat()}&per-page=999"
 
+print(url)
+
 
 def clean_slug(slug: str):
     return slug.replace(http_domain, "").split("?")[0]