| Tokenizer | Complete | Indentation stack, f-strings, soft keywords. |
| PEG parser | Complete | Full grammar including match. |
| AST | Complete | Generated from Python.asdl. |
| Symbol table | Complete | Two-pass resolver including __class__ cells. |
| Codegen | Complete | Every statement and expression form. |
| Flow graph | Partial | Jump threading, constant folding, dead code, stack depth, exception tables. |
| Assembler | Complete | PEP 657 location tables, exception tables, pools. |
.pyc marshal | Complete | Wire-compatible with CPython 3.14. |
| VM dispatch | Complete | Every Tier-1 opcode wired. |
| Specializer | Complete | All 14 PEP 659 families. |
| Tier-2 trace | Partial | Projector and executor lifecycle. 14 of ~285 uops ported. |
sys.monitoring | Complete | 19 fire events, shadow walk, tool slots. |
| Legacy tracing | Complete | sys.settrace bridge. |
| GIL | Complete | Acquire / release, eval breaker. |
| Memory model | Complete | Refcount + generational cycle collector. |
| Generators / async | Complete | RESUME, YIELD_VALUE, RETURN_GENERATOR, SEND. |
| Import system | Complete | Bootstrap, path finder, frozen modules, inittab. |
| Exception machinery | Complete | PEP 654 groups, except*. |
int / float | Complete | Big-int via objects/long.go. |
str | Complete | UCS-1 / UCS-2 / UCS-4 kinded storage. |
dict | Complete | Combined / split layout, version tag. |
| Other containers | Complete | list, tuple, set, frozenset, bytes, bytearray. |
| Built-in modules | Partial | sys, io, os, functools, collections, dataclasses, contextlib, traceback, weakref, types. More land per release. |