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Pip

As explained in Build a Reasoning Model (From Scratch)

Python’s package installer used to install packages from a terminal.

pip is Python’s package installer, used from a terminal to install the libraries required by a project. With Python 3.10 or newer, it provides a straightforward environment setup path. section 2.2

PyTorch may require a platform- and hardware-specific build, particularly for GPU acceleration. If a generic installation selects the wrong build, use the official PyTorch installation selector, then install the remaining packages separately. section 2.2

How Build a Reasoning Model (From Scratch) covers it

How deep it goes
Demonstrates file-based and direct package installation, but defers environment isolation and detailed platform-specific configuration to uv or PyTorch guidance.
Examples
Uses requirements.txt, a remote requirements file, and direct installation of PyTorch, tokenizers, and reasoning-from-scratch.
What it assumes
Assumes a Python environment, preferably Python 3.10 or newer, and terminal access.
What you can do after
Operate/configure a Python environment by installing project dependencies from a file or package list.
How it connects
Connects Python environments with requirements.txt, PyTorch, tokenizers, reasoning-from-scratch, and uv.

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This explainer was generated by Manning's knowledge graph from the text of Build a Reasoning Model (From Scratch). The section links point to the parts of the book it draws on.