Bind → conjure → meld

_{Beginner. Three verbs, one order.}

Excerpt. Config and Server are your application classes. Start with a fresh book, register both, and conjure once; the final line returns a Server.

book = md.Spellbook()

# 1. bind everything
book.bind(spell=Config, existence="unique")
book.bind(spell=Server, existence="many")

# 2. conjure ONCE  ← compiles + validates the entire graph
conduit = book.conjure()

# 3. meld everywhere
server = conduit.meld("Server")

conjure() prepares the registered graph. Requirements extraction, graph construction, cycle detection, and runtime compilation run there. Cycles and ambiguous providers refuse startup. A typed parameter with no provider can be supplied at meld(override={...}); omitting it when construction needs it raises UnresolvedInputError. Ordinary Python parameter defaults remain defaults.

One book, one conjure. A Spellbook produces exactly one conduit, ever. More scopes? create_lesser_conduit(). Another root? Another book.

Runnable examples

The basic rhythm — Beginner 21
One book one conduit — Beginner 36

All beginner examples · Level contents · Full contents

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