update

app.py

@@ -1,5 +1,6 @@
 import streamlit as st
 import pandas as pd
+import numpy as np
 
 st.title('Excel File Uploader')
 
@@ -12,12 +13,20 @@ if uploaded_file is not None:
     data_caqh = pd.read_excel(uploaded_file, sheet_name='CAQH')
     data_ndb = pd.read_excel(uploaded_file, sheet_name='NDB')
 
-    data_caqh['full-addr'] = data_caqh['address1'] + ', ' + data_caqh['address2'] + ', ' + data_caqh['city'] + ', '+ data_caqh['state']+ ', ' + data_caqh['postalcode']    
+    data_caqh['full-addr'] = data_caqh['address1'].astype(str) + ', ' \
+                             + np.where(data_caqh['address2'].isnull(),  '' , data_caqh['address2'].astype(str))  \
+                             + data_caqh['city'].astype(str) + ', '\
+                             + data_caqh['state'].astype(str) + ', ' \
+                             + data_caqh['postalcode'].astype(str)
 
-    data_ndb['zip_cd_zip_pls_4_cd'] = data_ndb['zip_cd'].astype(str) + '-' + data_ndb['zip_pls_4_cd'].astype(str)
-    data_ndb['zip_cd_zip_pls_4_cd'] = data_ndb['zip_cd_zip_pls_4_cd'].apply(lambda x: x if (x[-1] != '0' and x[-1] != '1') else x[:-1])
+    data_ndb['zip_pls_4_cd'] = data_ndb['zip_pls_4_cd'].astype(str).apply(lambda x: x if (x[-1] != '0' and x[-1] != '1') else '')
 
-    data_ndb['full-addr'] = data_ndb['adr_ln_1_txt'] + ', ' + data_ndb['st_cd'] + data_ndb['zip_cd_zip_pls_4_cd']
+    data_ndb['zip_cd_zip_pls_4_cd'] = data_ndb['zip_cd'].astype(str) +\
+                                      np.where( data_ndb['zip_pls_4_cd'].isnull() , '', '-' \
+                                      + data_ndb['zip_pls_4_cd'].astype(str))
+
+    data_ndb['full-addr'] = data_ndb['adr_ln_1_txt'].astype(str) + ', ' \
+                            + data_ndb['st_cd'].astype(str) + ', ' + data_ndb['zip_cd_zip_pls_4_cd']
 
     st.dataframe(data_caqh)
     st.dataframe(data_ndb)