Update app.py

app.py

@@ -129,29 +129,35 @@ def filter_by_fields(selected_country, selected_city, selected_language):
 
     df = pd.DataFrame(data)
 
-    # Normalize key fields
+    # Normalize Country & City
     df["Country"] = df["Country"].astype(str).str.strip().str.title()
     df["City"] = df["City"].astype(str).str.strip().str.title()
+
+    # Normalize Languages: always string, lowercase, comma-separated
     df["Languages"] = df["Languages"].apply(
         lambda x: ", ".join(x) if isinstance(x, list) else str(x)
-    ).str.lower().str.strip()
+    ).str.strip().str.lower()
 
-    # Apply filters
+    # Normalize filters
     if selected_country != "All":
-        df = df[df["Country"] == selected_country.strip().title()]
+        selected_country = selected_country.strip().title()
+        df = df[df["Country"] == selected_country]
+
     if selected_city != "All":
-        df = df[df["City"] == selected_city.strip().title()]
+        selected_city = selected_city.strip().title()
+        df = df[df["City"] == selected_city]
+
     if selected_language != "All":
-        df = df[df["Languages"].str.contains(selected_language.lower())]
+        selected_language = selected_language.strip().lower()
+        df = df[df["Languages"].str.contains(selected_language, na=False)]
 
     if df.empty:
         return "<p>No participants match your filters.</p>"
 
-    # Optional: hide address
+    # Hide address if present
     if "Address" in df.columns:
         df = df.drop(columns=["Address"])
 
-    # Optional: rename headers
     display_names = {
         "Discord": "Discord",
         "Name": "Name",
@@ -168,16 +174,14 @@ def filter_by_fields(selected_country, selected_city, selected_language):
         "Project Idea": "Project Idea"
     }
 
-    html = '<h3 style="margin-top:20px;">🔍 Find your matching Teammates & Register your team <a href="https://forms.gle/gJEMGD4CEA2emhD18" target="_blank">here</a>👈👈</h3>'
+    html = '<h3 style="margin-top:20px;">🔍 Find your matching Teammates & Register your team <a href="https://forms.gle/gJEMGD4CEA2emhD18" target="_blank">here</a></h3>'
     html += "<table style='width:100%; border-collapse: collapse;'>"
 
-    # Table headers
     html += "<tr>"
     for col in df.columns:
         html += f"<th style='border: 1px solid #ccc; padding: 6px;'>{display_names.get(col, col)}</th>"
     html += "</tr>"
 
-    # Table rows
     for _, row in df.iterrows():
         html += "<tr>"
         for col in df.columns:
@@ -190,6 +194,7 @@ def filter_by_fields(selected_country, selected_city, selected_language):
     html += "</table>"
     return html
 
+
 # Delete discord
 def delete_by_discord(discord, code):
     if code != ADMIN_CODE:
@@ -254,9 +259,10 @@ def download_csv(code):
     return csv_path
 
     
-    country_filter.change(fn=update_city_filter, inputs=[country_filter], outputs=[city_filter])
-    for dropdown in [country_filter, city_filter, language_filter]:
-        dropdown.change(fn=filter_by_fields, inputs=[country_filter, city_filter, language_filter], outputs=[table_html])
+country_filter.change(fn=update_city_filter, inputs=[country_filter], outputs=[city_filter])
+for dropdown in [country_filter, city_filter, language_filter]:
+    dropdown.change(fn=filter_by_fields, inputs=[country_filter, city_filter, language_filter], outputs=[table_html])
+
 
 
     gr.Markdown("---\n### 🛡️ Admin Panel (delete by Discord)")