library · inferred from evidence
Pyppeteer
A Python library for controlling a headless browser, used for local rendering of diagrams.
- ModuleNotFoundError: No module named 'pyppeteer.launcher'; 'pyppeteer' is not a package
Fixes the pyppeteer shadowing failure where Python finds a pyppeteer.py file instead of the package. Use when the error says `'pyppeteer' is not a package`. Not for plain `No module named 'pyppeteer'`.
- TimeoutError from mermaid.ink when rendering a LangGraph diagram
Fixes draw_mermaid_png() timing out against mermaid.ink when rendering LangGraph diagrams. Use when you see ReadTimeout or "Failed to reach https://mermaid.ink/" from get_graph().draw_mermaid_png(). Workarounds: print_ascii() fallback, high