QuantConnect Community Discussions
QUANTCONNECT COMMUNITY
Hello the attached algo, doesn't make any transactions because is not able to retrieve the option chain for the specific symbol. In the loop of the select_options() function, the line if kvp.Key == key, never match because kvp.Key has an '?' before the stock symbol, so the chain does not retrieved for the required symbol.
The correct behaviour I suppose is that kvp.Key would be equal to 'AAPL', or 'NFLX' or 'GOOG' or 'TSLA' without the '?'. How this can be solved? It is a bug?
Upvote
Hi Nicolas,
I cannot run your algorithm because I get "JSONDecodeError". I believe the token for that external resource is not valid for me. However from your description, I believe here is the problem:
the type of kvp.Key is a Symbol, not a string. That is the reason you see "?" when you try to print it right away. To get the ticker string of that symbol, we need kvp.Key.Value.
Hope it helps!
QuantConnectâ„¢ 2025. All Rights Reserved
Share New Research 
To unlock posting to the community forums please complete at least 30% of Boot Camp.
You can continue your Boot Camp training progress from the terminal. We hope to see you in the community soon!