PSE Data Scraper

PSE Data Scraper pulls company lists and historical price data from PSE EDGE, then exports them to CSV for analysis. It includes a CLI, retry logic, optional caching, and a small Python API.

Quick Start

Install dependencies:

pip install -r requirements.txt

Run the full pipeline:

python -m pse_data_scraper sync

You can also run the direct entry point (same defaults as pse sync):

python main.py

CLI Usage

Install locally for the pse command:

pip install -e .

Examples:

pse sync
pse companies --refresh
pse prices --symbols BDO,ALI --from 2020-01-01 --to 2024-01-01
pse export --format csv
pse status

Common options:

• --rate-limit sets the delay between requests.
• --symbols limits downloads to specific tickers.
• --max-companies is useful for quick test runs.
• --refresh forces re-downloads even if files exist.
• --no-cache disables cached API responses.
• Dates accept MM-DD-YYYY or YYYY-MM-DD.

Legacy commands (still supported): scrape, download, combine, all.

Configuration

Generate a starter config:

pse init

By default, the CLI reads pse.toml from the current directory. You can override it with --config path/to/pse.toml.

Example pse.toml:

[paths]
data_dir = "data"
cache_dir = ".cache"

[network]
rate_limit = 0.8

[download]
start_date = "2020-01-01"
symbols = ["BDO", "ALI"]

Python API

from pse_data_scraper.client import PSEClient
from pse_data_scraper.scraper import scrape_companies, save_companies_to_csv
from pse_data_scraper.downloader import download_historical_data
from pse_data_scraper.combiner import combine_csvs

client = PSEClient(rate_limit_seconds=0.6)
companies = scrape_companies(client)
save_companies_to_csv(companies, "data/companies.csv")
download_historical_data(client, input_csv="data/companies.csv", output_dir="data/history")
combine_csvs("data/history", "data/combined.csv")

Output Files

• data/companies.csv - company list with IDs and symbols
• data/history/ - one CSV per company
• data/combined.csv - consolidated price dataset
• .cache/ - optional cached API responses

API Notes

The scraper uses endpoints observed from PSE EDGE. See docs/API.md for payload and response details.

Structure

pse-data-scraper/
├── main.py
├── pyproject.toml
├── requirements.txt
├── requirements-dev.txt
├── pse_data_scraper/
│   ├── cli.py
│   ├── client.py
│   ├── config.py
│   ├── downloader.py
│   ├── models.py
│   ├── pipeline.py
│   ├── scraper.py
│   ├── status.py
│   └── utils.py
├── utils/               # compatibility wrappers
└── docs/
    └── API.md

Development

pip install -e .
pip install -r requirements-dev.txt
pytest

License

MIT. See LICENSE.