Python Setup & IDE Guide

Short, clear, Python‑focused.

---

Requirements

• Python 3.10+
  Uses pattern matching, modern type hints, async improvements.

python --version

---

IDE Setup (PyCharm / IntelliJ)

1. Set interpreter:
   File → Settings → Project → Python Interpreter → Select Python 3.10+

2. Fix syntax warnings:
   Editor → Inspections → Python → Set language level to 3.10+

3. Ensure correct SDK:
   Project Structure → Project SDK → Python 3.10+

---

Installation

# Activate venv
~\venvs\scaev\Scripts\Activate.ps1

# Install deps
pip install -r requirements.txt

# Playwright browsers
playwright install chromium

---

Database Configuration (PostgreSQL)

The scraper now uses PostgreSQL (no more SQLite files). Configure via DATABASE_URL:

• Default (baked in): postgresql://auction:heel-goed-wachtwoord@192.168.1.159:5432/auctiondb
• Override for your environment:

# Windows PowerShell
$env:DATABASE_URL = "postgresql://user:pass@host:5432/dbname"

# Linux/macOS
export DATABASE_URL="postgresql://user:pass@host:5432/dbname"

Packages used:

• Driver: psycopg[binary]

Nothing is written to local .db files anymore.

---

Verify

python -c "import sys; print(sys.version)"
python main.py --help

Common fixes:

pip install playwright
playwright install chromium

---

Auto‑Start (Monitor)

Linux (systemd) — Recommended

cd ~/scaev
chmod +x install_service.sh
./install_service.sh

Service features:

• Auto‑start
• Auto‑restart
• Logs: ~/scaev/logs/monitor.log

sudo systemctl status scaev-monitor
journalctl -u scaev-monitor -f

---

Windows (Task Scheduler)

cd C:\vibe\scaev
.\setup_windows_task.ps1

Manage:

Start-ScheduledTask "ScaevAuctionMonitor"

---

Cron Alternative (Linux)

crontab -e
@reboot cd ~/scaev && python3 src/monitor.py 30 >> logs/monitor.log 2>&1
0 * * * * pgrep -f monitor.py || (cd ~/scaev && python3 src/monitor.py 30 >> logs/monitor.log 2>&1 &)

---

Status Checks

ps aux | grep monitor.py
tasklist | findstr python

---

Troubleshooting

• Wrong interpreter → Set Python 3.10+
• Multiple monitors running → kill extra processes
• PostgreSQL connectivity → verify DATABASE_URL, network/firewall, and credentials
• Service fails → check journalctl -u scaev-monitor

---

Java Extractor (Short Version)

Prereqs: Java 21, Maven

Install:

mvn clean install
mvn exec:java -Dexec.mainClass=com.microsoft.playwright.CLI -Dexec.args="install"

Run:

mvn exec:java -Dexec.args="--max-visits 3"

Enable native access (IntelliJ → VM Options):

--enable-native-access=ALL-UNNAMED

---

---

This file keeps everything compact, Python‑focused, and ready for onboarding.