1.5.0

This will be the last release that supports Python 2, with fixes for serious bugs being available for a year after the release date.

Fixes

• Fixed the AssociationServer not properly closing its sockets (#382)

• Improved the robustness of determining the local IP address (#394)

• Fixed not being able to set an Implementation Version Name of length 1 (#414)

• Changed ImplantationPlanSRDocumentStorage to ImplantationPlanSRStorage to match the name from Part 6 of the DICOM Standard rather than Part 4.

• Stopped the QR Move SCP from associating with the move destination when no sub-operations were required (#436)

• Fixed a possible race condition during DIMSE message exchange (#435)

• Fixed the association acceptor selecting the first matching proposed transfer syntax rather than the first matching supported transfer syntax during presentation context negotiation (#445)

• Fixed incorrect Pending status value for Modality Worklist (#462)

• Fixed an InvalidEventError due to two A-ABORT messages being sent. Issue is triggered when the DIMSE and network timeouts have the same value and both expire while sending a DIMSE request. (#460)

• Fixed datasets encoding using Deflated Explicit VR Little Endian not transferring correctly (#482)

Enhancements

• Added configuration option _config.USE_SHORT_DIMSE_AET so elements with a VR of AE in DIMSE messages are no longer padded to the maximum 16 characters. (#403)

• When acting as the association Acceptor check that the user hasn’t sent an A-ABORT or A-ASSOCIATE-RJ before attempting association negotiation (#408)

• Added message_id to Event for use when receiving a DIMSE service request

• Added the well-known SOP Instances for the supported service classes to sop_class.

• Added support for the DIMSE intervention event handlers aborting or releasing the association during service class operation.

• Add new SOP classes up to 2019e version of the standard (#424)

• Added AllStoragePresentationContexts which contains all of the Storage Service Class’ SOP Class UIDs rather than just the first 128 as in StoragePresentationContexts.

• Updates and additions to the applications:

  • Overhaul of echoscp, echoscu, storescp and storescu apps

  • Added non-toy implementations for findscu, getscu and movescu apps

  • Added qrscp app

• Apps can now be invoked from the command line with python -m pynetdicom [appname] [options], e.g. python -m pynetdicom echoscu 127.0.0.1 11112 -d

• Added ability to pass optional extra arguments to event handlers by using (evt.EVT_NAME, handler, ['list', 'of', 'args']) (#447)

• Added AE.make_server() (#453)

• Added request_handler keyword parameter to AssociationServer (#453)

• Added hook in AE for creating AssociationSocket objects (#455)

• Added a customisable Status convenience class for comparing, returning and yielding status values (#454)

• Added hook in RequestHandler for creating Association objects (#455)

• Prefer an exact match when selecting a valid presentation context over a convertible one (#472)

• Added configuration options _config.LOG_REQUEST_IDENTIFIERS and _config.LOG_RESPONSE_IDENTIFIERS for controlling whether or not the contents of C-FIND, C-GET and C-MOVE request and response Identifier datasets are logged

• Added pretty_dataset() and pretty_element() functions for producing pretty string output from datasets and elements

• When handling evt.EVT_C_MOVE, the handler function may optionally yield (addr, port, kwargs) as its first yield, where kwargs is a dict containing keyword parameters that will be passed to AE.associate() when the association with the Storage SCP is initiated.

Changes

• Using a key that corresponds to a given UID with Association.send_c_find(), Association.send_c_get() and Association.send_c_move() removed as per planned deprecation. Use the UID directly instead.

• Support for Python 2 is deprecated and will be removed starting in version 2.0.

• Python 3.4 is no longer supported, Python 3.7 and 3.8 are now officially supported

• If an A-ABORT is received while waiting for a DIMSE message the Association.send_* methods will now return immediately rather than waiting for the DIMSE timeout. (#430)

• Added abort_type keyword parameter to ACSE.is_aborted()

• Added args keyword parameter to Association.bind() and AssociationServer.bind()

• Association.get_handlers() and AssociationServer.get_handlers() now return a 2-tuple or list of 2-tuples.

• Added deflated keyword parameter to encode() and decode()

• encode_element() is deprecated and will be removed in version 2.0

• Deflated Explicit VR Little Endian added to DEFAULT_TRANSFER_SYNTAXES

Known Issues

• TLS v1.3 (with OpenSSL 1.1.1 or higher) is not currently supported (#364)