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Organise a set of units of code in a sequence that can be rerun repeatedly skipping already completed units

Project description

A set of Python classes to declare an idempotent sequence of commands – a sequence that can be run repeatedly and on success will produce the same side effects no matter how many times you invoke it.

This is useful when you have a sequence of commands each of which can fail and you want to keep rerunning the sequence until it succeeds, yet you don’t want to run previously completed parts again.

See examples under idemseq/examples.

$ pip install idempotent-sequence

$ set IDEMSEQ_SEQUENCE_ID=/tmp/example02.db

$ idemseq idemseq.examples.example02:example

$ idemseq idemseq.examples.example02:example list
$ idemseq idemseq.examples.example02:example run --dry-run
$ idemseq idemseq.examples.example02:example run
$ idemseq idemseq.examples.example02:example reset all

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