Update app.py

app.py

@@ -16,7 +16,13 @@ zip_path = "top_100_influencers.zip"
 # Download zip file if not already present
 if not os.path.exists(zip_path):
     print("📥 Downloading influencer dataset...")
-    r = requests.get(url)
+    headers = {"User-Agent": "Mozilla/5.0"}
+    r = requests.get(url, headers=headers)
+    
+    # Confirm file is binary ZIP
+    if r.status_code != 200 or b"PK" not in r.content[:10]:
+        raise ValueError("❌ Invalid ZIP file downloaded. Check URL or access permissions.")
+    
     with open(zip_path, "wb") as f:
         f.write(r.content)