Ceneo.pl parser

This application is for collecting product data from the Ceneo.pl website.

Capabilities:

- Automatic data collection: Collects information about products (name, ID, price, availability) from all pages of the category.
- Pagination handling: Automatically navigates to the next pages of the category.
- Data extraction from JSON-LD: Finds and extracts product data from the JSON-LD markup on the page.
- Saving to Excel: Saves the collected data to an Excel file with separate sheets for each category.
- User-friendly interface: Allows easy selection of a file with links to categories and a file for saving results.
- Logging: Displays the progress of the parsing in the application window.

Easy to use:

- Select a file with links to Ceneo.pl categories.
- Select an Excel file to save the data.
- Click "Start parsing."

Technologies:

- PyQt5: for creating the graphical interface.
- Playwright: for browser automation and interaction with web pages.
- Pandas: for processing and saving data to Excel.
- JSON: for working with JSON-LD data.