Update app.py

app.py

@@ -124,26 +124,34 @@ def filter_by_fields(selected_country, selected_city, selected_language):
     with open(DATA_FILE, "r") as f:
         data = json.load(f)
 
-    df = pd.DataFrame(data)
-    if df.empty:
+    if not data:
         return "<p>No data available.</p>"
 
-    df["Languages"] = df["Languages"].apply(lambda x: ", ".join(x) if isinstance(x, list) else str(x))
+    df = pd.DataFrame(data)
 
+    # Normalize key fields
+    df["Country"] = df["Country"].astype(str).str.strip().str.title()
+    df["City"] = df["City"].astype(str).str.strip().str.title()
+    df["Languages"] = df["Languages"].apply(
+        lambda x: ", ".join(x) if isinstance(x, list) else str(x)
+    ).str.lower().str.strip()
+
+    # Apply filters
     if selected_country != "All":
-        df = df[df["Country"].str.title() == selected_country.title()]
+        df = df[df["Country"] == selected_country.strip().title()]
     if selected_city != "All":
-        df = df[df["City"].str.title() == selected_city.title()]
+        df = df[df["City"] == selected_city.strip().title()]
     if selected_language != "All":
-        df = df[df["Languages"].str.contains(selected_language)]
-
-    if "Address" in df.columns:
-        df.drop(columns=["Address"], inplace=True)
+        df = df[df["Languages"].str.contains(selected_language.lower())]
 
     if df.empty:
         return "<p>No participants match your filters.</p>"
 
-    # Rename column headers for display only
+    # Optional: hide address
+    if "Address" in df.columns:
+        df = df.drop(columns=["Address"])
+
+    # Optional: rename headers
     display_names = {
         "Discord": "Discord",
         "Name": "Name",
@@ -159,17 +167,17 @@ def filter_by_fields(selected_country, selected_city, selected_language):
         "Experience": "Experience",
         "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 += "<table style='width:100%; border-collapse: collapse;'>"
 
-    # Header row
+    # Table headers
     html += "<tr>"
     for col in df.columns:
-        html += f"<th style='border: 1px solid #ccc; padding: 6px;'>{col}</th>"
+        html += f"<th style='border: 1px solid #ccc; padding: 6px;'>{display_names.get(col, col)}</th>"
     html += "</tr>"
 
-    # Data rows
+    # Table rows
     for _, row in df.iterrows():
         html += "<tr>"
         for col in df.columns:
@@ -182,6 +190,7 @@ 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:
         return "❌ Invalid admin code."