old_contents: #!/usr/bin/env python
  ## 
  ## @file    echo_sedml.py
  ## @brief   Echos (and prints) a SED-ML model.
  ## @author  Frank T. Bergmann
  ## 
  ## <!--------------------------------------------------------------------------
  ## This file is part of libSEDML.  Please visit http://sed-ml.org for more
  ## information about SEDML, and the latest version of libSEDML.
  ## 
  ## Copyright (c) 2013, Frank T. Bergmann  
  ## All rights reserved.
  ## 
  ## Redistribution and use in source and binary forms, with or without
  ## modification, are permitted provided that the following conditions are met: 
  ## 
  ## 1. Redistributions of source code must retain the above copyright notice, this
  ##    list of conditions and the following disclaimer. 
  ## 2. Redistributions in binary form must reproduce the above copyright notice,
  ##    this list of conditions and the following disclaimer in the documentation
  ##    and/or other materials provided with the distribution. 
  ## 
  ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  ## WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  ## DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  ## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  ## (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  ## LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  ## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  ## SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  ## ------------------------------------------------------------------------ -.
  ## 
  
  import sys
  import os.path
  import libsedml
  
  def main (args):
    """Usage: echo_sedml input-filename output-filename
    """
    if len(args) != 3:
      print(main.__doc__)
      sys.exit(1)
  
    d = libsedml.readSedML(args[1]);
    if ( d.getErrorLog().getNumFailsWithSeverity(libsedml.LIBSEDML_SEV_ERROR) > 0):
      print d.getErrorLog().toString();
    else:
      libsedml.writeSedML(d, args[2]);
  
    return 0;
  
  if __name__ == '__main__':
    main(sys.argv)  
new_contents: #!/usr/bin/env python
  ## 
  ## @file    echo_sedml.py
  ## @brief   Echos (and prints) a SED-ML model.
  ## @author  Frank T. Bergmann
  ## 
  ## <!--------------------------------------------------------------------------
  ## This file is part of libSEDML.  Please visit http://sed-ml.org for more
  ## information about SEDML, and the latest version of libSEDML.
  ## 
  ## Copyright (c) 2013, Frank T. Bergmann  
  ## All rights reserved.
  ## 
  ## Redistribution and use in source and binary forms, with or without
  ## modification, are permitted provided that the following conditions are met: 
  ## 
  ## 1. Redistributions of source code must retain the above copyright notice, this
  ##    list of conditions and the following disclaimer. 
  ## 2. Redistributions in binary form must reproduce the above copyright notice,
  ##    this list of conditions and the following disclaimer in the documentation
  ##    and/or other materials provided with the distribution. 
  ## 
  ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  ## ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  ## WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  ## DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
  ## ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  ## (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  ## LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  ## ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  ## SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  ## ------------------------------------------------------------------------ -.
  ## 
  
  import sys
  import os.path
  import libsedml
  
  def main (args):
    """Usage: echo_sedml input-filename output-filename
    """
    if len(args) != 3:
      print(main.__doc__)
      sys.exit(1)
  
    d = libsedml.readSedML(args[1]);
    if ( d.getErrorLog().getNumFailsWithSeverity(libsedml.LIBSEDML_SEV_ERROR) > 0):
      print (d.getErrorLog().toString());
    else:
      libsedml.writeSedML(d, args[2]);
  
    return 0;
  
  if __name__ == '__main__':
    main(sys.argv)  
subject: use more portable print statement