title: Output Extent (Environment Setting)
body: <p>I would like to know how to set up the Output extent on ArcMAP using Python.</p>
  
  <p>I have a loop to Create Thiessen Polygons, but I didn't mange to change my output extent the size I want.</p>
  
  <pre><code>arcpy.Extent(293490,5898230,316430,5930230)
  
  for i in range(3,51,1):
      arcpy.CreateThiessenPolygons_analysis("AVF%i" % i,"AVF%iVoronoi" % i,"ONLY_FID")
  </code></pre>
  
  <p>Thanks for your help</p>