old_contents: #! /usr/bin/env python
  
  if __name__ == "__main__":
      import os, sys
  
      sys.path.insert(
          0,
          os.path.join(
              os.path.dirname(__file__),
              "..",
              "lib",
              "scons-2.3.2"
          )
      )
  
      import SCons.Script
  
      # this does all the work, and calls sys.exit
      # with the proper exit status when done.
      SCons.Script.main()
  
new_contents: #! /usr/bin/env python
  
  if __name__ == "__main__":
      import os, sys
  
      sys.path.insert(
          0,
          os.path.join(
              os.path.dirname(__file__),
              "..",
              "lib",
              "scons-2.3.2"
          )
      )
  
      if sys.version_info[0] >= 3:
          sys.exit("""\
  Error, scons must be run with Python3. Our attempts at guessing to find a
  Python2 version must have failed. Ideally you would install Scons, then
  Nuitka would use it and not face the issue.""")
  
      import SCons.Script
  
      # this does all the work, and calls sys.exit
      # with the proper exit status when done.
      SCons.Script.main()
  
subject: Check that inline copy of scons is not run with Python3.