Why same stock repeated, and stock.price or stock.adjustedprice causing error?

HI Mostafa,

1. Because coarse filter can contain the same stock multiple times from one call to the other. Like, in call #1, there is MSFT in coarse. In call #2, MSFT can still be in there. So your code can then append MSFT twice in your selectedStocks list. Use a set() instead of a list or make sure the symbol is not in the list before the append. Like this:

if symbol not in selectedStocks:
	selectedStocks.append(symbol)

2. Don't do coarse = [c for c in coarse if c.Price > 1000]. It messes with Python.NET dispatch algorithm. If you use another variable instead of overwriting coarse, it should be fine. For instance:

prelims = [c for c in coarse if c.Price > 1000]

Fred

Thanks Fred. For the first point, i just realized I was placing the loop to print stocks in the wrong place and now it's fixed (no repeated stocks any more).

For the second point, I changed the (coarse) variable to (selectedStocks) and still getting the same error. What surprises me a lot the same expression (stock.AdjustedPrice) is used few lines above with the averages.update method and that didn't cause any problem, but it's not working and causing error when used in this if comparison statement (stock.AdjustedPrice > self.averages[symbol].EMA20). Any idea how I can fix that?

I just found the solution in another thread.

Comparing current stock price to ema should be in the following format:

stock.AdjustedPrice or Price > self.averages[symbol].EMA20.Current.Value

instead of my original code which caused the error:

stock.AdjustedPrice > self.averages[symbol].EMA20