claude
fbec36cb67
Scaffold the course repo and author the full curriculum in dependency-chain order, following the settled build decisions in handoff.md. - Scaffold: course README, vendor-neutral AGENTS.md (dogfoods Module 5), _TEMPLATE.md (the fixed 9-section module shape), root .gitignore, ship config. - Modules 1-2: reference exemplars (locked for tone/depth/lab style). - Modules 3-27: full lessons + runnable labs, each following the template, respecting the chain, vendor/model-agnostic, with "feel the pain" labs. - Module 8 hosting comparison web-researched and date-stamped (as of 2026-06-22), not written from memory; expansion-zone modules carry Verify-before-publish. - Capstone: the full loop end to end on the running tasks-app example. Lab code syntax-checked (Python/shell/YAML); every module has the 7 core template sections. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01TfzV5QvtPDz8LJS3Pu5VLT
43 lines
1.2 KiB
Python
43 lines
1.2 KiB
Python
"""Core task logic for the demo app.
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Same running example as Modules 1 and 2, with one addition: `complete` now validates the
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index and raises a clear error for a bad one. That explicit edge-case handling is here on
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purpose — it's the kind of thing an AI "refactor" likes to quietly remove. This is the
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known-good base you'll review an AI change against in Module 10.
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"""
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from dataclasses import dataclass, field
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@dataclass
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class Task:
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title: str
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done: bool = False
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@dataclass
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class TaskList:
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tasks: list[Task] = field(default_factory=list)
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def add(self, title: str) -> Task:
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task = Task(title=title)
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self.tasks.append(task)
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return task
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def complete(self, index: int) -> None:
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if not 0 <= index < len(self.tasks):
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raise IndexError(f"no task at index {index}")
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self.tasks[index].done = True
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def pending(self) -> list[Task]:
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return [t for t in self.tasks if not t.done]
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def render(self) -> str:
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if not self.tasks:
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return "(no tasks yet)"
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lines = []
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for i, task in enumerate(self.tasks):
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box = "[x]" if task.done else "[ ]"
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lines.append(f"{i}. {box} {task.title}")
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return "\n".join(lines)
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