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# chesscom-scraper
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2023-11-27 21:13:46 +00:00
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**Caution! Be careful running this script.**
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2023-11-28 03:04:47 +00:00
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We intentionally delay each batch of requests by 3 seconds. Make sure any
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adjustments to this script appropriately rate-limit.
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## Overview
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This is a simple web scraper for [chess.com](https://www.chess.com/coaches)
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coaches. Running:
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```bash
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$> python3 main.py --user-agent <your-email>
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```
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will query [chess.com](https://www.chess.com) for all listed coach usernames as
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well as specific information about each of corresponding coach (their profile,
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recent activity, and stats). The result will be found in a newly created `data`
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directory with the following structure:
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```
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data
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├── coach
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│ ├── <username>
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│ │ ├── <username>.html
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│ │ ├── activity.json
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│ │ └── stats.json
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│ ├── ...
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└── pages
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├── <n>.txt
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├── ...
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```
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## Development
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This script was written using Python (version 3.11.6). Packaging and dependency
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management relies on [poetry](https://python-poetry.org/) (version 1.7.0).
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[direnv](https://direnv.net/) can be used to a launch a dev shell upon entering
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this directory (refer to `.envrc`). Otherwise run via:
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```bash
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$> nix develop
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```
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### Language Server
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The [python-lsp-server](https://github.com/python-lsp/python-lsp-server)
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(version v1.9.0) is included in this flake, along with the [python-lsp-black](https://github.com/python-lsp/python-lsp-black)
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plugin for formatting purposes. `pylsp` is expected to be configured to use
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[McCabe](https://github.com/PyCQA/mccabe), [pycodestyle](https://pycodestyle.pycqa.org/en/latest/),
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and [pyflakes](https://github.com/PyCQA/pyflakes). Refer to your editor for
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configuration details.
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### Formatting
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Formatting depends on the [black](https://black.readthedocs.io/en/stable/index.html)
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(version 23.9.1) tool. A `pre-commit` hook is included in `.githooks` that can
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be used to format all `*.py` files prior to commit. Install via:
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```bash
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$> git config --local core.hooksPath .githooks/
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```
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If running [direnv](https://direnv.net/), this hook is installed automatically
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when entering the directory.
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