Updating a module level shared dictionary
<p>A module level dictionary 'd' and is accessed by different threads/requests in a django web application. I need to update 'd' every minute with a new data and the process takes about 5 seconds. </p>

<p>What could be best solution where I want the users to get either the old value or the new value of d and nothing in between. </p>

<p>I can think of a solution where a temp dictionary is constructed with a new data and assigned to 'd' but not sure how this works!</p>

<p>Appreciate your ideas.</p>

<p>Thanks</p>
