title: Getting a Weekly info in Python with Sqlite3
body: <pre><code>enter code here
  </code></pre>
  
  <p>i have a Table which daily Datas are stored and with this function i want to get an amount of data from ( yyyy, m, d ) until ( yyyy, m, d )</p>
  
  <pre><code>def weekly_cal():
      connect = sqlite3.connect('working_time_app.db')
      cursor = connect.cursor()
  
      cursor.execute("SELECT sum( fnishing - starting ) FROM working_time_app_table WHERE date between" +
                     d_u_entry and d_f_entry)
      # ( d_u_entry ) and (d_f_entry) are variables which the Dates are stored in and i got those inputs 
      # from an entry box
      sum_result = cursor.fetchall()
  
      show_weekly_cal_label = Label(cal_win, text=sum_result, font=("mv boli", 12), fg="white", bg="black")
      show_weekly_cal_label.grid(column=3, row=15, columnspan=5)
  
      connect.commit()
      connect.close()
  </code></pre>
  
  <p>the function should return the sum of Hours in the range of entered Dates the code does not show any Errors and after Running the code i do not get any Errors also . But the Label or Data will not be showed on the screen.</p>