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ZTFY utility used to generate sequences

Project description


ZTFY.sequence is a small package used to set sequential identifiers on selected persistent contents.

The SequentialIntIds utility is based on zope.intid.IntIds utility, but overrides a few methods to be able to define these sequential IDs.

Classes for which we want to get these sequential IDs have to implement the ISequentialIntIdTarget marker interface. They can also implement two attributes, which allows to define the name of the sequence to use and a prefix.

This prefix, which can also be defined on the utility, is used to define an ID in hexadecimal form, as for example ‘LIB-IMG-000012ae7c’, based on the ‘main’ numeric ID.

Sequence utility

Sequences are handled by a utility implementing ISequentialIntIds interface and registered for that interface.

You can set two optional parameters on this utility, to define the first hexadecimal ID prefix as well as the length of hexadecimal ID (not including prefix).


Thierry Florac <>, Author



  • force unicode on hexadecimal OID value
  • added TAL “sequence:” namespace package


  • package created using templer [Thierry Florac]

Project details

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