how to populate option menu(drop down box) on the selection of another option menu in python?
<p>I want to know about the python code of which i asked. the thing is:</p>

<p>two option menu
1-country
2-city</p>

<p>when we select the country ,should be populate all city to second option
menu which is related to that particular country which we select from country 
option menu.</p>

<p>please give me reply very soon......</p>
