HTML Table Extractor

Description

This Python script extracts tables from HTML files and converts them into Excel spreadsheets. It handles hyperlinks by creating separate URL columns and can add a custom 'type' column to all extracted tables.

Features

• Extracts all tables from a given HTML file
• Preserves hyperlinks by creating separate URL columns
• Adds a custom 'type' column to all tables
• Outputs data to an Excel file with multiple sheets (one per table)
• Prepends "https://scan.merlinchain.io" to all extracted URLs

Requirements

• Python 3.x
• pandas
• BeautifulSoup4
• openpyxl

Usage

Run the script from the command line with two arguments:

1. Path to the HTML file
2. Value for the 'type' column

Output

The script generates an Excel file named '[original_filename]_tables.xlsx' in the same directory as the input HTML file. Each table from the HTML file is placed in a separate sheet within the Excel file.

Main Functions

• read_html_file(file_path): Reads the HTML file
• html_table_to_dataframe(table, type_value): Converts an HTML table to a pandas DataFrame
• extract_tables_to_excel(html_content, output_file, type_value): Extracts all tables and saves them to an Excel file
• main(): Handles command-line arguments and orchestrates the extraction process

Notes

• The script assumes relative URLs in the HTML and prepends "https://scan.merlinchain.io" to all URLs
• Empty URL columns are automatically removed from the output
• Use at your own risk.