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Module Dependency Map

Page Maps

graph LR
  family["Python Programming"]
  program["Python Meta-Programming"]
  section["Reference"]
  page["Module Dependency Map"]
  capstone["Capstone evidence"]

  family --> program --> section --> page
  page -.applies in.-> capstone
flowchart LR
  orient["Orient on the page map"] --> read["Read the main claim and examples"]
  read --> inspect["Inspect the related code, proof, or capstone surface"]
  inspect --> verify["Run or review the verification path"]
  verify --> apply["Apply the idea back to the module and capstone"]

Use this page when you remember a mechanism but no longer remember why the course placed it where it did.

The point is not just sequencing. The point is dependency discipline. Later modules should feel like consequences of earlier ones, not like disconnected advanced topics.

How to use this map

Use it in one of three moments:

  • before a module, to see what it depends on
  • after a break, to find the last stable concept you still own
  • during confusion, to locate the earlier boundary that a later mechanism is leaning on

If a late module feels magical, this page should help you find the missed floor beneath it.

Main sequence

graph TD
  m01["01 Runtime Objects and the Object Model"]
  m02["02 Runtime Observation and Inspection"]
  m03["03 Signatures, Provenance, and Runtime Evidence"]
  m04["04 Function Wrappers and Transparent Decorators"]
  m05["05 Decorator Design, Policies, and Typing"]
  m06["06 Class Customization Before Metaclasses"]
  m07["07 Descriptors, Lookup, and Attribute Control"]
  m08["08 Descriptor Systems and Validation Framework Design"]
  m09["09 Metaclass Design and Class Creation"]
  m10["10 Runtime Governance and Mastery Review"]

  m01 --> m02 --> m03 --> m04 --> m05
  m03 --> m06 --> m07 --> m08 --> m09 --> m10
  m05 --> m10
  m08 --> m10
  m09 --> m10

Why the sequence looks like this

Module Depends most on Reason
01 none the object model is the floor beneath every later runtime technique
02 01 observation should come before mutation or transformation
03 01-02 provenance and signature discipline depend on knowing what can be inspected honestly
04 02-03 wrappers only deserve trust if runtime evidence survives them
05 04 decorator policy is a design problem after transparent wrapping is already clear
06 01-05 lower-power class customization should be exhausted before metaclass pressure appears
07 01-06 descriptor behavior relies on the earlier object and lookup model
08 06-07 descriptor systems are safer after single-descriptor behavior is already legible
09 06-08 metaclasses belong late because class-creation invariants are the strongest escalation
10 all earlier modules governance review requires the whole power ladder in view

Read the sequence as three dependency chains

Observation chain

Modules 01 to 03 establish:

  • what exists at runtime
  • how to inspect it safely
  • how runtime evidence becomes strong enough for review

Without that chain, wrappers and descriptors stop being inspectable and start feeling magical.

Control chain

Modules 04 to 09 establish:

  • what belongs at call boundaries
  • what belongs at attribute boundaries
  • what belongs at class-creation boundaries

Without that chain, stronger hooks begin solving problems that lower-power tools could have owned more honestly.

Governance chain

Module 10 establishes:

  • when the mechanism is still defensible
  • when the blast radius is too high
  • what proof and rollback expectations now apply

Without that chain, the course teaches power without teaching restraint.

Safe routes through the sequence

  • new to metaprogramming: read Modules 01 through 10 in order
  • working maintainer: start with Modules 03, 04, 07, and 09, then backfill the lower-power dependencies when they are unclear
  • runtime steward: start with Modules 05, 08, 09, and 10, then revisit earlier modules when transparency or blast-radius questions appear

If you are lost in the sequence

If you are stuck on... Return to... Because...
observation versus execution 01 and 02 you need the inspection floor first
decorator honesty 03 and 04 wrapper trust depends on evidence surviving
descriptor ownership 06 and 07 attribute rules need lower-power class groundwork
descriptor systems 07 and 08 reusable field design is clearer after single-field behavior
metaclass justification 06, 08, and 09 the missed lower-power tools matter as much as the final hook
governance and rejection decisions 05, 09, and 10 review judgment needs the whole escalation ladder

Good stopping point

Stop when you can explain:

  • what lower-power knowledge one module depends on
  • why Modules 09 and 10 arrive late
  • which earlier module you would revisit if a later mechanism still feels magical