ai-agent-book 精选快照（<2MB 代码与文档，来自 github.com/bojieli/ai-agent-book）

agentbook/__init__.py

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+"""Shared packaging and plumbing for the ai-agent-book companion experiments.
+
+This package exists so the repo can declare its dependencies once (see the root
+``pyproject.toml``) instead of repeating them across per-project
+``requirements.txt`` files.
+
+Install what a chapter needs::
+
+    pip install -e ".[ch1]"     # chapter 1, no GPU stack
+    pip install -e ".[ch7]"     # heavy fine-tuning deps, opt in explicitly
+
+Scope: this package holds *plumbing only* -- provider resolution, environment
+loading, trace printing. The teaching code stays inside each chapter's
+experiment directory, where a reader can follow it top to bottom.
+"""
+
+__version__ = "0.1.0"
+
+__all__ = ["__version__"]