CSV Address Indexer Script

I have a plain CSV file filled with street addresses that need to be checked—one by one—against a public-facing search form on a specific website. Your task is to build a small, repeatable script that will:

• Read each address from my input CSV
• Query the site’s public search exactly as a human would (no private APIs available)
• Capture the full address details returned in the results and write them to a new CSV
• When an address is not found, write a clearly-marked placeholder row so the output file keeps the same order and record count as the original

The finished script should run from the command line on a typical desktop environment, accept the path to my input file, and generate a single output CSV with the scraped data. Please keep external dependencies light and include concise setup/run instructions so I can reproduce the results on my own machine.