Extracts all emails from given urls in CSV companies.csv (with first field representing company name and the second field is the website of the company) and writes them in CSV emails.csv (with first field representing company name and the rest of the fields representing extracted emails).

Assuming there is input CSV file companies.csv.

$ pip install -r requirements.txt
$ python3 main.py

Now you can find extracted emails in CSV file emails.csv.