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Config conduit lifecycle hooks๏
๐ก Intermediate ยท Lesson 33
SpellbookConfiguration hooks, family 2: the CONDUIT LIFECYCLE. Five moments of a conduit's life are observable: on_conduit_pre_created / on_conduit_post_created / on_conduit_activated at conjure, and on_conduit_cleanup_start / on_conduit_cleanup_complete at the end. Register before conjure; watch the whole life.
Before you run๏
Use the Intermediate guide for prerequisite concepts. Run from a checkout with Melder installed and Python 3.14 free-threading selected. The collection download includes the level's local helper modules.
Run the saved script๏
python UX_and_AIX_experiences/02_intermediate/33_config_conduit_lifecycle_hooks.py
py -3.14t UX_and_AIX_experiences/02_intermediate/33_config_conduit_lifecycle_hooks.py
Public surface๏
conduit lifecycle hooks, firing order
Code๏
1"""
2TIER: intermediate (33)
3GOAL: SpellbookConfiguration hooks, family 2: the CONDUIT LIFECYCLE.
4 Five moments of a conduit's life are observable:
5 on_conduit_pre_created / on_conduit_post_created /
6 on_conduit_activated at conjure, and
7 on_conduit_cleanup_start / on_conduit_cleanup_complete at the
8 end. Register before conjure; watch the whole life.
9SURFACE EXERCISED: conduit lifecycle hooks, firing order
10"""
11import melder as md
12
13
14class Anything:
15 pass
16
17
18def main() -> None:
19 moments = []
20
21 book = md.Spellbook()
22 config = book.get_configuration()
23 for name in ("on_conduit_pre_created", "on_conduit_post_created",
24 "on_conduit_activated", "on_conduit_cleanup_start",
25 "on_conduit_cleanup_complete"):
26 config.add_hook(book.id, name,
27 (lambda n: lambda *a, **k: moments.append(n))(name))
28
29 book.bind(spell=Anything, existence="unique")
30 conduit = book.conjure()
31 print("after conjure:", moments)
32
33 conduit.cleanup()
34 print("after cleanup:", moments)
35 assert moments.index("on_conduit_pre_created") < moments.index(
36 "on_conduit_cleanup_start")
37 print("a conduit's whole life, observed in order")
38
39
40if __name__ == "__main__":
41 main()
Check the outcome๏
The script contains its own assertions or demonstrated refusal paths. Run it to evaluate those checks against your installed version. The code above is taken directly from the saved file; no run output is invented here.