When pulling in saved files (nyse, amex, nasdaq) symbol_data contained
empty lists within the list. When processed in the loop, I would get an
error that the list index was out of range. My list concatenation fix
will remove any blank lists that could cause this error.
When pulling in saved files (nyse, amex, nasdaq) symbol_data contained empty lists within the list. When processed in the loop, I would get an error that the list index was out of range. My list concatenation fix will remove any blank lists that could cause this error.