old_contents: # write_new.py
  """Simple example of writing a DICOM file from scratch using pydicom.
  
  This example does not produce a DICOM standards compliant file as written,
  you will have to change UIDs to valid values and add all required DICOM data
  elements
  """
  # Copyright (c) 2010 Darcy Mason
  # This file is part of pydicom, released under a modified MIT license.
  #    See the file license.txt included with this distribution, also
  #    available at http://pydicom.googlecode.com
  import sys
  import os.path
  import dicom
  from dicom.dataset import Dataset, FileDataset
  import dicom.UID
  
  if __name__ == "__main__":
      print "---------------------------- "
      print "write_new.py example program"
      print "----------------------------"
      print "Demonstration of writing a DICOM file using pydicom"
      print "NOTE: this is only a demo. Writing a DICOM standards compliant file"
      print "would require official UIDs, and checking the DICOM standard to ensure"
      print "that all required data elements were present."
      print
      
      if sys.platform.lower().startswith("win"):
          filename = r"c:\temp\test.dcm"
          filename2 = r"c:\temp\test-explBig.dcm"
      else:
          homedir = os.path.expanduser("~")
          filename = os.path.join(homedir, "test.dcm")
          filename2 = os.path.join(homedir, "test-explBig.dcm")
      
      print "Setting file meta information..."
      # Populate required values for file meta information
      file_meta = Dataset()
      file_meta.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.2' # CT Image Storage
      file_meta.MediaStorageSOPInstanceUID = "1.2.3" # !! Need valid UID here for real work
      file_meta.ImplementationClassUID = "1.2.3.4" # !!! Need valid UIDs here
      
      print "Setting dataset values..."
      
      # Create the FileDataset instance (initially no data elements, but file_meta supplied)
      ds = FileDataset(filename, {}, file_meta=file_meta, preamble="\0"*128)
      
      # Add the data elements -- not trying to set all required here. Check DICOM standard
      ds.PatientsName = "Test^Firstname"
      ds.PatientID = "123456"
      
      # Set the transfer syntax
      ds.is_little_endian = True
      ds.is_implicit_VR = True
      
      print "Writing test file", filename
      ds.save_as(filename)
      print "File saved."
      
      # Write as a different transfer syntax
      ds.file_meta.TransferSyntaxUID = dicom.UID.ExplicitVRBigEndian #XXX pydicom 0.9.5 bug in filewriter not recognizing transfer syntax
      ds.is_little_endian = False
      ds.is_implicit_VR = False
      
      print "Writing test file as Big Endian Explicit VR", filename2
      ds.save_as(filename2)
new_contents: # write_new.py
  """Simple example of writing a DICOM file from scratch using pydicom.
  
  This example does not produce a DICOM standards compliant file as written,
  you will have to change UIDs to valid values and add all required DICOM data
  elements
  """
  # Copyright (c) 2010 Darcy Mason
  # This file is part of pydicom, released under a modified MIT license.
  #    See the file license.txt included with this distribution, also
  #    available at http://pydicom.googlecode.com
  import sys
  import os.path
  import dicom
  from dicom.dataset import Dataset, FileDataset
  import dicom.UID
  
  if __name__ == "__main__":
      print "---------------------------- "
      print "write_new.py example program"
      print "----------------------------"
      print "Demonstration of writing a DICOM file using pydicom"
      print "NOTE: this is only a demo. Writing a DICOM standards compliant file"
      print "would require official UIDs, and checking the DICOM standard to ensure"
      print "that all required data elements were present."
      print
      
      if sys.platform.lower().startswith("win"):
          filename = r"c:\temp\test.dcm"
          filename2 = r"c:\temp\test-explBig.dcm"
      else:
          homedir = os.path.expanduser("~")
          filename = os.path.join(homedir, "test.dcm")
          filename2 = os.path.join(homedir, "test-explBig.dcm")
      
      print "Setting file meta information..."
      # Populate required values for file meta information
      file_meta = Dataset()
      file_meta.MediaStorageSOPClassUID = '1.2.840.10008.5.1.4.1.1.2' # CT Image Storage
      file_meta.MediaStorageSOPInstanceUID = "1.2.3" # !! Need valid UID here for real work
      file_meta.ImplementationClassUID = "1.2.3.4" # !!! Need valid UIDs here
      
      print "Setting dataset values..."
      
      # Create the FileDataset instance (initially no data elements, but file_meta supplied)
      ds = FileDataset(filename, {}, file_meta=file_meta, preamble="\0"*128)
      
      # Add the data elements -- not trying to set all required here. Check DICOM standard
      ds.PatientsName = "Test^Firstname"
      ds.PatientID = "123456"
      
      # Set the transfer syntax
      ds.is_little_endian = True
      ds.is_implicit_VR = True
      
      print "Writing test file", filename
      ds.save_as(filename)
      print "File saved."
      
      # Write as a different transfer syntax
      ds.file_meta.TransferSyntaxUID = dicom.UID.ExplicitVRBigEndian #XXX shouldn't need this but pydicom 0.9.5 bug not recognizing transfer syntax
      ds.is_little_endian = False
      ds.is_implicit_VR = False
      
      print "Writing test file as Big Endian Explicit VR", filename2
      ds.save_as(filename2)
subject: Clarify comment in write_new.py on setting transfer syntax.