title: What exactly returns canvas.coords()?
body: <p>I've got some problems (again !) : according to <a href="http://infohost.nmt.edu/tcc/help/pubs/tkinter/tkinter.pdf" rel="nofollow noreferrer">this documentation</a> should </p>
  
  <pre><code>temporary = cv.create_text(a,b, text = "ip example", anchor = E)
  x,y = cv.coords(temporary)
  print(coords)
  </code></pre>
  
  <p>return a tuple <code>(x1,y1,x2,y2)</code>
  Sadly I only get two coordinates : (ex : <code>(347.08203932499373, 320.5342302750968)</code>). </p>
  
  <p>What went wrong ? </p>
  
  <p>EDIT : </p>
  
  <p>1) More precisely, this point is in the documentation p.23, .coords § @DeepSpace</p>
  
  <p>2) I understood this point, but I absolutely need the top-left AND bottom right apex coordinate. If cv.coords() doesn't return these values, how could I find them ? @RonNorris</p>