implement simple GUI in Python 3.0

extremely in hurry, need this to be done in at most 8 hours. Use python 3.0 tkinter functions to code a simple procedure like a user interface for a weather app, the requirements as below: 1:when the main procedure executes, it should display a main-window to let user input a location. 2:when the user input a location, system will verify if it is an valid input(just create a test list as database), if not, ask input again; if yes, the procedure should create a new check button to let user choose if they want to view the temperature of that location or rainfall information of the location. 3:user can choose to view either the rainfall or the temperature or both of them. After choose, the procedure should create a sub-window to displayed the chosen information. 4:User may check different locations weather in same time, for each valid location input, a independent sub-window is needed to display the information. 5:User may close the sub-window at any time. (a quit button on the sub window) I've already done the main-window part which can create sub-windows, it is executable but still have problem need to fix. Other functions are required to implement. If you wish you can modify my code and add yours based on mine.