From 7e11f296a4419828ecc0de2262854dd5f9328db7 Mon Sep 17 00:00:00 2001
From: TheHolyRoger <theholyroger@theholyroger.com>
Date: Fri, 26 Mar 2021 02:31:10 +0000
Subject: [PATCH] Fix / Kucoin debug logging outputs

---
 .../exchange/kucoin/kucoin_order_book_tracker.py      | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/hummingbot/connector/exchange/kucoin/kucoin_order_book_tracker.py b/hummingbot/connector/exchange/kucoin/kucoin_order_book_tracker.py
index 8b42c7db4f..10764f2b08 100644
--- a/hummingbot/connector/exchange/kucoin/kucoin_order_book_tracker.py
+++ b/hummingbot/connector/exchange/kucoin/kucoin_order_book_tracker.py
@@ -75,10 +75,8 @@ async def _order_book_diff_router(self):
                 # Log some statistics.
                 now: float = time.time()
                 if int(now / 60.0) > int(last_message_timestamp / 60.0):
-                    self.logger().debug("Diff messages processed: %d, rejected: %d, queued: %d",
-                                        messages_accepted,
-                                        messages_rejected,
-                                        messages_queued)
+                    self.logger().debug(f"Diff messages processed: {messages_accepted}, "
+                                        f"rejected: {messages_rejected}, queued: {messages_queued}")
                     messages_accepted = 0
                     messages_rejected = 0
                     messages_queued = 0
@@ -127,8 +125,7 @@ async def _track_single_book(self, trading_pair: str):
                     # Output some statistics periodically.
                     now: float = time.time()
                     if int(now / 60.0) > int(last_message_timestamp / 60.0):
-                        self.logger().debug("Processed %d order book diffs for %s.",
-                                            diff_messages_accepted, trading_pair)
+                        self.logger().debug(f"Processed {diff_messages_accepted} order book diffs for {trading_pair}.")
                         diff_messages_accepted = 0
                     last_message_timestamp = now
                 elif message.type is OrderBookMessageType.SNAPSHOT:
@@ -142,7 +139,7 @@ async def _track_single_book(self, trading_pair: str):
                         d_bids, d_asks = active_order_tracker.convert_diff_message_to_order_book_row(diff_message)
                         order_book.apply_diffs(d_bids, d_asks, diff_message.update_id)
 
-                    self.logger().debug("Processed order book snapshot for %s.", trading_pair)
+                    self.logger().debug(f"Processed order book snapshot for {trading_pair}.")
             except asyncio.CancelledError:
                 raise
             except Exception: