Update app.py

app.py

@@ -47,12 +47,10 @@ def login():
         username = st.text_input("Username", placeholder="Enter Username")
         password = st.text_input("Enter Password", type="password")
         username = username.lower().strip()
-
-        user = collection.find_one({"username":username})
-
         submit = st.form_submit_button("Login")
         if submit:
             with st.spinner('Checking credentials...'):
+                user = collection.find_one({"username":username})
                 if user==None:
                     st.warning("Username is does not exits, please register")
                     reset_username_inputs()