From 3545d5af4d3bb94548487ef5dee43b7585ad7ace Mon Sep 17 00:00:00 2001
From: Jacopo De Simoi <wilderjds@protonmail.com>
Date: Sun, 21 May 2023 12:34:56 -0400
Subject: [PATCH] add debug statement

---
 src/cryptocom/exchange/market.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/cryptocom/exchange/market.py b/src/cryptocom/exchange/market.py
index 2bb04cf..9f0926e 100644
--- a/src/cryptocom/exchange/market.py
+++ b/src/cryptocom/exchange/market.py
@@ -1,3 +1,4 @@
+import sys
 from typing import AsyncGenerator, Dict, List
 
 from . import pairs
@@ -98,6 +99,8 @@ class Exchange:
             data = await self.api.get(
                 "public/get-candlestick",
                 {"instrument_name": pair.name, "timeframe": period.value})
+        if not data:
+                print(f'no data for {pair.name}: request was {pair} {period} {endTime}',file=sys.stderr)
         return [Candle.from_api(pair, candle) for candle in data]
 
     async def listen_candles(