Using ProcessPoolExecutor with get_filings about edgartools

[dgunning]

Company(ticker) gets the company json with the first 1000 filings for that company. If the company has more than 1000 filings the code issues a call for each page of 1000 filings until all are retrieved. So for given company you could be making several calls
Company(ticker, include_old_filings=False) makes just the first call, but that's moot since you need all the 10-K's

max_workers>2 will likely overload the requests per second at the moment.

There is a more efficient way to do this .. I need some time to do the details but

• get a list of ciks from the tickers using get_cik_ticker_lookup()
• filings = get_filings(form=['10-K', '10-Q'], filing_date=f'{start_date}:{end_date}')
• filter filings by cik
• Separate into companies

I'm also working on a set of batch improvements including a Throttler inside the request framework but that's a couple releases out (a week or two)

(Side note: you've given me an idea for optimization by getting old filings only when get_filings is called. Right now it's just a filter.)