Return None on failed symbol lookups

piker/brokers/core.py

@@ -37,7 +37,12 @@ async def quote(brokermod: ModuleType, tickers: [str]) -> dict:
     """Return quotes dict for ``tickers``.
     """
     async with brokermod.get_client() as client:
-        return await client.quote(tickers)
+        results = await client.quote(tickers)
+        for key, val in results.items():
+            if val is None:
+                brokermod.log.warn(f"Could not find symbol {key}?")
+
+        return results
 
 
 async def poll_tickers(

piker/brokers/questrade.py

@@ -152,7 +152,15 @@ class Client:
         t2ids = await self.tickers2ids(tickers)
         ids = ','.join(map(str, t2ids.values()))
         results = (await self.api.quotes(ids=ids))['quotes']
-        return {sym: quote for sym, quote in zip(tickers, results)}
+        quotes = {quote['symbol']: quote for quote in results}
+
+        # set None for all symbols not found
+        if len(t2ids) < len(tickers):
+            for ticker in tickers:
+                if ticker not in quotes:
+                    quotes[ticker] = None
+
+        return quotes
 
     async def symbols(self, tickers):
         """Return quotes for each ticker in ``tickers``.
@@ -275,6 +283,8 @@ async def get_client() -> Client:
 
 @asynccontextmanager
 async def quoter(client: Client, tickers: [str]):
+    """Quoter context.
+    """
     t2ids = await client.tickers2ids(tickers)
     ids = ','.join(map(str, t2ids.values()))
 

piker/brokers/robinhood.py

@@ -1,8 +1,8 @@
 """
 Robinhood API backend.
 """
-import asks
 from async_generator import asynccontextmanager
+import asks
 
 from ..log import get_logger
 from ._util import resproc
@@ -27,7 +27,8 @@ class _API:
         return await self._request('quotes/', params={'symbols': symbols})
 
     async def fundamentals(self, symbols: str) -> dict:
-        return await self._request('fundamentals/', params={'symbols': symbols})
+        return await self._request(
+            'fundamentals/', params={'symbols': symbols})
 
 
 class Client:
@@ -40,9 +41,9 @@ class Client:
         self.api = _API(self._sess)
 
     async def quote(self, symbols: [str]):
-        resp = await self.api.quotes(','.join(symbols))
-        results = resp['results']
-        return {sym: quote for sym, quote in zip(symbols, results)}
+        results = (await self.api.quotes(','.join(symbols)))['results']
+        return {quote['symbol'] if quote else sym: quote
+                for sym, quote in zip(symbols, results)}
 
 
 @asynccontextmanager