Update app.py

app.py

@@ -15,7 +15,7 @@ class preProcess:
 
 
     def check_columns(self, df):
-      if (len(df.columns) > 3):
+      if (len(df.columns) > 4):
         st.error('File has more than 3 coloumns.')
         return False
       if (len(df.columns) == 0):
@@ -63,7 +63,7 @@ class Model:
       return summary
       
       
-      
+st.write('This application generates a summary of a datafile (.csv). Right now, it only generates summaries of files with maximum of four columns. If the file contains more than four columns, the app will throw an error.')
 mode = st.selectbox('What kind of summary do you want?',
      ('Simple', 'Analytical'))
 st.write('You selected: ' + mode + ' summary.') 
@@ -74,9 +74,10 @@ if uploaded_file is not None and mode is not None and title is not None:
   st.write('Preprocessing file...')
   p = preProcess(uploaded_file, title)
   contents = p.read_data()
-  st.write(contents)
   check = p.check_columns(contents)
   if check:
+    st.write('Your file contents:\n')
+    st.write(contents)
     title_data = p.combine_title_data(contents)
     st.write('Linearized input format of the data file:\n ')
     st.markdown('**'+ title_data + '**')