What's Changed

• switch pre-commit -> prek by @samuelcolvin in https://github.com/pydantic/monty/pull/392
• gc: properly release references held by values in cycles by @davidhewitt in https://github.com/pydantic/monty/pull/399
• bump to Rust 1.95 by @davidhewitt in https://github.com/pydantic/monty/pull/401
• fix GC tracking for datetime.tzinfo by @rsr5 in https://github.com/pydantic/monty/pull/397
• clean up some dict view implementations by @davidhewitt in https://github.com/pydantic/monty/pull/402
• convert py_repr methods to take &mut VM by @davidhewitt in https://github.com/pydantic/monty/pull/403
• make Task have owning references to its coroutine / gather by @davidhewitt in https://github.com/pydantic/monty/pull/404
• fix hash equality for trivial types by @davidhewitt in https://github.com/pydantic/monty/pull/405
• further isolate unsafe code within Heap implementation by @davidhewitt in https://github.com/pydantic/monty/pull/406
• fix: parse errors must not leak ruff AST Debug formatting by @smigolsmigol in https://github.com/pydantic/monty/pull/390
• ci: fix lint failures from nightly clippy by @davidhewitt in https://github.com/pydantic/monty/pull/415
• Add gc.collect() function only with test-hooks feature by @davidhewitt in https://github.com/pydantic/monty/pull/398
• merge lifetimes in VM to a single lifetime by @davidhewitt in https://github.com/pydantic/monty/pull/416
• fix lifetimes from conflicting merges to main by @davidhewitt in https://github.com/pydantic/monty/pull/417
• fix no active frame panic on duplicate coroutine in gather by @rsr5 in https://github.com/pydantic/monty/pull/410
• cache the hash value of interned / static strings by @davidhewitt in https://github.com/pydantic/monty/pull/418
• fix: avoid panic when list.sort() key callback mutates the list by @SAY-5 in https://github.com/pydantic/monty/pull/413
• implement "trial deletion" GC to collect cycles by @davidhewitt in https://github.com/pydantic/monty/pull/407
• reject reusing an already-awaited external future via gather by @rsr5 in https://github.com/pydantic/monty/pull/420
• Add dart/flutter bindings by @runyaga in https://github.com/pydantic/monty/pull/414
• inline hash caching directly into relevant types by @davidhewitt in https://github.com/pydantic/monty/pull/422
• Fix async external function exception propagation by @vivekraghuram in https://github.com/pydantic/monty/pull/424
• note that make install-py is often necessary in CLAUDE.md by @davidhewitt in https://github.com/pydantic/monty/pull/426
• fix typo in CLAUDE.md by @davidhewitt in https://github.com/pydantic/monty/pull/427
• fix exception stack corruption in various raise cases by @davidhewitt in https://github.com/pydantic/monty/pull/428
• avoid unbounded recursion in two tuple traversal cases by @davidhewitt in https://github.com/pydantic/monty/pull/429
• move all String heap allocation to go through allocate_string helper by @davidhewitt in https://github.com/pydantic/monty/pull/430
• Bound AST depth produced by folding flat elif and bool-op chains by @dsp-ant in https://github.com/pydantic/monty/pull/437
• Pre-check requested size in bytes(int) constructor against resource l… by @dsp-ant in https://github.com/pydantic/monty/pull/435
• Clean up compiler - no longer emit dead code, simpler exception handlers, ensure jumps hit the same depth by @davidhewitt in https://github.com/pydantic/monty/pull/432
• agents: note that certain heap operations only need &Heap by @davidhewitt in https://github.com/pydantic/monty/pull/441
• refactor GatherFuture to be a state machine by @davidhewitt in https://github.com/pydantic/monty/pull/433
• fix panic on duplicate parameter names by @smigolsmigol in https://github.com/pydantic/monty/pull/382
• only swallow AttributeError in getattr by @davidhewitt in https://github.com/pydantic/monty/pull/442
• deduplicate source lines in tracebacks by @davidhewitt in https://github.com/pydantic/monty/pull/443
• fix more panics by @davidhewitt in https://github.com/pydantic/monty/pull/372
• fix further panics in integer operations by @davidhewitt in https://github.com/pydantic/monty/pull/444
• optimize operand load on bytecode loop by @davidhewitt in https://github.com/pydantic/monty/pull/446
• simplify jump calculation by @davidhewitt in https://github.com/pydantic/monty/pull/445
• refactor futures to have state machines like gather by @davidhewitt in https://github.com/pydantic/monty/pull/447
• Bound except-clause tuple matching by the recursion-depth limit by @dsp-ant in https://github.com/pydantic/monty/pull/439
• Bound container pre-allocation driven by iterator size hints by @dsp-ant in https://github.com/pydantic/monty/pull/434
• optimize cycle collector to have per-node work stack, not per-edge by @davidhewitt in https://github.com/pydantic/monty/pull/450
• move limits in the compiler to return syntax errors rather than panic by @davidhewitt in https://github.com/pydantic/monty/pull/449
• enforce JSON integers do not exceed Monty's BigInt limits by @davidhewitt in https://github.com/pydantic/monty/pull/431
• avoid unbounded recursion in monty_to_py by @davidhewitt in https://github.com/pydantic/monty/pull/453
• avoid UB in Heap::dec_ref by @davidhewitt in https://github.com/pydantic/monty/pull/451
• Implement open builtin, with limitations by @samuelcolvin in https://github.com/pydantic/monty/pull/456
• add more limitations by @samuelcolvin in https://github.com/pydantic/monty/pull/460
• clean up unsupported results in evaluate_function by @davidhewitt in https://github.com/pydantic/monty/pull/463
• avoid panic on string id 128..255 by @davidhewitt in https://github.com/pydantic/monty/pull/466
• collect cell vars from for / while / if control flow expressions by @davidhewitt in https://github.com/pydantic/monty/pull/465
• Context manager support by @samuelcolvin in https://github.com/pydantic/monty/pull/462
• Implement buffered open() methods by @samuelcolvin in https://github.com/pydantic/monty/pull/461
• move value_to_i32 by @samuelcolvin in https://github.com/pydantic/monty/pull/468
• fix(repl): Add local/global store operation in comprehension expressions by @Embers-of-the-Fire in https://github.com/pydantic/monty/pull/297
• Ruff depth limit by @samuelcolvin in https://github.com/pydantic/monty/pull/391
• fix: name-based identity and equality for external function values by @mbeschastn0v in https://github.com/pydantic/monty/pull/458
• Cap comprehension generator count to prevent compiler stack overflow by @samuelcolvin in https://github.com/pydantic/monty/pull/470
• fix overlay append quota by @samuelcolvin in https://github.com/pydantic/monty/pull/472
• Fstring precision limits by @samuelcolvin in https://github.com/pydantic/monty/pull/474
• fix(file): do not serialize OpenFile buffer_meta cache across snapshots by @samuelcolvin in https://github.com/pydantic/monty/pull/471
• proc macro for function signature parsing by @samuelcolvin in https://github.com/pydantic/monty/pull/467
• apply INT_MAX_STR_DIGITS guard to natural JSON BigInt path by @samuelcolvin in https://github.com/pydantic/monty/pull/475
• prep v0.0.18 release by @samuelcolvin in https://github.com/pydantic/monty/pull/476

New Contributors

• @smigolsmigol made their first contribution in https://github.com/pydantic/monty/pull/390
• @SAY-5 made their first contribution in https://github.com/pydantic/monty/pull/413
• @vivekraghuram made their first contribution in https://github.com/pydantic/monty/pull/424
• @dsp-ant made their first contribution in https://github.com/pydantic/monty/pull/437
• @mbeschastn0v made their first contribution in https://github.com/pydantic/monty/pull/458

Full Changelog: https://github.com/pydantic/monty/compare/v0.0.17...v0.0.18