##
8.4 #if

The template:

      #set $size = 500
      #if $size >= 1500
      It's big
      #else if $size < 1500 and $size > 0
      It's small
      #else
      It's not there
      #end if

The output:

      It's small

The generated code:

      size = 500
      if size >= 1500:
          write("It's big\n")
      elif size < 1500 and size > 0:
          write("It's small\n")
      else:
          write("It's not there\n")