Delete data element by name

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From darcymason@gmail.com on June 11, 2009 22:26:44

As outline in PydicomUserGuide , can delete a data element from a dataset using the tag. But should be able to do so using the name, just as for getting and setting DICOM data elements, e.g. del ds.PatientId

Steps:

• add delattr method to Dataset in dataset.py: (The code should be similar to that in setattr)
  • check if attribute already exists (i.e. is not a DICOM name), delete normally if it is.
  • If not a normal attribute, then get tag by TagForName(name) and delete the tag from the dataset if it exists; if not, raise appropriate error (AttributeError)
• write unit tests -- need to test delete of attributes that exist and that attempt to del one that doesn't exist raises AttributeError
• modify example programs that delete data elements (anonymize.py for sure; others?) to use the new format with the name

Then I will need to also edit the deletion part of the PydicomUserGuide to show how to use the new method.

Original issue: http://code.google.com/p/pydicom/issues/detail?id=50

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From darcymason@gmail.com on November 05, 2009 21:44:40

Done in revision 5aa5d9e255 , including unit tests. Wiki edited in my local clone.

Status: Fixed