Bump python-statemachine from 2.3.6 to 2.4.0

[dependabot]

Bumps python-statemachine from 2.3.6 to 2.4.0.

Release notes

Sourced from python-statemachine's releases.

v2.4.0

StateMachine 2.4.0

November 5, 2024

What's new in 2.4.0

This release introduces powerful new features for the StateMachine library: {ref}Condition expressions and explicit definition of {ref}Events. These updates make it easier to define complex transition conditions and enhance performance, especially in workflows with nested or recursive event structures.

Python compatibility in 2.4.0

StateMachine 2.4.0 supports Python 3.7, 3.8, 3.9, 3.10, 3.11, 3.12, and 3.13.

Conditions expressions in 2.4.0

This release introduces support for conditionals with Boolean algebra. You can now use expressions like or, and, and not directly within transition conditions, simplifying the definition of complex state transitions. This allows for more flexible and readable condition setups in your state machine configurations.

Example (with a spoiler of the next highlight):

>>> from statemachine import StateMachine, State, Event
>>> class AnyConditionSM(StateMachine):
...     start = State(initial=True)
...     end = State(final=True)
...
...     submit = Event(
...         start.to(end, cond="used_money or used_credit"),
...         name="finish order",
...     )
...
...     used_money: bool = False
...     used_credit: bool = False
>>> sm = AnyConditionSM()
>>> sm.submit()
Traceback (most recent call last):
TransitionNotAllowed: Can't finish order when in Start.
>>> sm.used_credit = True
>>> sm.submit()
>>> sm.current_state.id
'end'

See {ref}`Condition expressions` for more details or take a look at the {ref}`sphx_glr_auto_examples_lor_machine.py` example.

... (truncated)

Commits

• 9434716 Merge branch 'release/2.4.0'
• 90b78fc release: Update translations
• 5bd27b7 release: New 2.4.0 release doc
• 9cadf84 docs: Improving docs for events
• f22bae0 feat: Improved Event class (#488)
• 1275cd4 feat: Conditionals with boolean algebra (#487)
• ff14d62 fix: Fix nested events inside loops leaking memory by referencing the previou...
• 25d6392 Merge tag 'v2.3.6' into develop
• See full diff in compare view

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 71.58%. Comparing base (8eece96) to head (79c14c8).

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #158      +/-   ##
==========================================
- Coverage   71.72%   71.58%   -0.14%     
==========================================
  Files          28       28              
  Lines        2889     2889              
  Branches      225      225              
==========================================
- Hits         2072     2068       -4     
- Misses        758      760       +2     
- Partials       59       61       +2     

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