error on windows "No module named:structLog"

This is the error i get when I put: python node.py:
Traceback (most recent call last):
File "C:\Users\marce\blockchain-book\chapters\chapter_7\node.py", line 3, in
from funcoin.blockchain import Blockchain
File "C:\Users\marce\blockchain-book\chapters\chapter_7\funcoin\blockchain.py", line 8, in
import structlog
ModuleNotFoundError: No module named 'structlog'

Reproduce the error with `python node.py` from `chapters/chapter_7`, then inspect `chapters/chapter_7/funcoin/blockchain.py` and its `structlog` import. Confirm the expected dependency setup for this chapter and verify that the command runs on Windows without the reported ModuleNotFoundError.

Written by the indexing model from the issue text.