title: Finding widgets on a grid (tkinter)
body: <p>Using the <code>tkinter</code> module, suppose I create a grid with 50 button widgets and each of those widgets has different text. I need to be able to specify some way of typing in a row and column so I can get that widget's text at that location.</p>
  <p>For example, if I need the widget's text at the third row in the second column of the grid. I've searched the docs but that tells me how to get info about widgets, when I need info about the grid.</p>