erdospy

erdospy is a Python package and CLI for analyzing Erdős problems, tracking latest progress, and surfacing relevant discussions directly from the terminal.

Documentation:

• Chinese quick start: docs/quick-start.zh.md
• MkDocs config: mkdocs.yml
• Reusable workflow skill: skills/erdospy-workflow/SKILL.md

Current Phase 1 scope:

• standard src layout package
• reusable SQLite query layer
• typer + rich CLI for core read workflows
• pure CLI workspace flow for local build, incremental update, daily progress, and per-problem history
• full forum extraction via CLI, including thread metadata, problem descriptions, posts, replies, and reaction summaries
• analysis-oriented CLI access to the latest progress and related discussion history
• simple serve dashboard for local viewing and GitHub Pages publishing

Install

pip install -e .

Quick Start

This is the shortest real workflow today.

1. Create a writable local workspace database

erdospy build

By default this creates:

~/.erdospy/erdos_problems.db
~/.erdospy/history.jsonl
~/.erdospy/snapshot.json

Path overrides for automation and testing:

• ERDOSPY_HOME: override the workspace root directory
• ERDOSPY_DB_PATH: override the exact database file path

2. Query the local workspace snapshot

erdospy stats --db ~/.erdospy/erdos_problems.db
erdospy get 42 --db ~/.erdospy/erdos_problems.db --comments
erdospy search "Sidon set" --db ~/.erdospy/erdos_problems.db --limit 5
erdospy list --db ~/.erdospy/erdos_problems.db --status open --tag primes --limit 10

3. Run an incremental refresh

erdospy update updates the local workspace changelog from the tracked forum index.

erdospy update --db ~/.erdospy/erdos_problems.db --quick
erdospy update --db ~/.erdospy/erdos_problems.db --pull
erdospy update --db ~/.erdospy/erdos_problems.db --comments-only

4. Run a full forum extraction

To capture full forum structure, including thread pages, posts, replies, and reaction summaries:

erdospy forum sync --db ~/.erdospy/erdos_problems.db

For a partial full sync while iterating on the scraper:

erdospy forum sync --db ~/.erdospy/erdos_problems.db --limit 20 --show-top 5

Stored forum stats can be inspected directly from CLI:

erdospy forum stats --db ~/.erdospy/erdos_problems.db
erdospy forum thread 12 --db ~/.erdospy/erdos_problems.db --show-posts 3
erdospy forum latest --db ~/.erdospy/erdos_problems.db --limit 10
erdospy forum related 12 --db ~/.erdospy/erdos_problems.db
erdospy forum search "Lean proofs" --db ~/.erdospy/erdos_problems.db

5. Check daily progress and specific records

erdospy daily --db ~/.erdospy/erdos_problems.db
erdospy daily --db ~/.erdospy/erdos_problems.db --date 2026-04-07
erdospy record 42 --db ~/.erdospy/erdos_problems.db

6. Reusable Skill

The reusable workflow description lives in:

skills/erdospy-workflow/SKILL.md

It documents the intended end-to-end usage pattern without adding extra CLI surface.

End-to-end CLI flow

# install once
pip install -e .

# create a writable local DB
erdospy build

# inspect local state
erdospy stats --db ~/.erdospy/erdos_problems.db
erdospy get 42 --db ~/.erdospy/erdos_problems.db --comments

# capture forum data once in full
erdospy forum sync --db ~/.erdospy/erdos_problems.db

# then run daily incremental refreshes
erdospy update --db ~/.erdospy/erdos_problems.db

# inspect what changed today
erdospy daily --db ~/.erdospy/erdos_problems.db

# drill into one problem's local history
erdospy record 42 --db ~/.erdospy/erdos_problems.db

# inspect full stored forum data for a thread
erdospy forum thread 12 --db ~/.erdospy/erdos_problems.db --show-posts 3

# inspect latest progress and related discussion
erdospy forum latest --db ~/.erdospy/erdos_problems.db --limit 10
erdospy forum related 12 --db ~/.erdospy/erdos_problems.db
erdospy forum search "formalised" --db ~/.erdospy/erdos_problems.db

# inspect one problem as a whole
erdospy progress 12 --db ~/.erdospy/erdos_problems.db

# get a compact digest of latest movement
erdospy digest --db ~/.erdospy/erdos_problems.db --limit 10

# serve a local dashboard
erdospy serve dashboard --db ~/.erdospy/erdos_problems.db --port 8000

Forum Capture Status

The current CLI supports a full forum extraction pass that stores:

• thread index metadata from /forum/
• problem descriptions attached to thread pages
• full thread pages for stored entries
• posts and nested replies
• reaction summaries for posts
• problem-level forum reactions where present

Recent real CLI run against the local workspace database produced:

• indexed problem threads: 735
• stored thread details: 79
• stored forum posts: 1745
• distinct post authors: 85

Top stored problem threads in the current local snapshot:

• #1038 with 134 comments
• #848 with 48 comments
• #1045 with 47 comments
• #1041 with 41 comments
• #423 with 38 comments

Command Reference

erdospy stats
erdospy get 42
erdospy get 42 --json
erdospy get 42 --comments
erdospy search "Sidon set"
erdospy list --status open --tag primes --has-prize
erdospy progress 12
erdospy digest
erdospy build
erdospy update --quick
erdospy daily
erdospy record 42
erdospy forum sync
erdospy forum stats
erdospy forum thread 12
erdospy forum latest
erdospy forum related 12
erdospy forum search "formalised"
erdospy serve dashboard