diff --git a/README.md b/README.md
index 15a6ec0..2096e25 100644
--- a/README.md
+++ b/README.md
@@ -209,9 +209,10 @@ This Crypto AlgoTrading Framework can be used with Pypy, but the results will no
 
 ## TODO
 
-*   Python 3 implementation
-*   Cython version
-*   Pure Python for Pypy (without Pandas and Numpy dependency)
+- [ ] Add ByBit API
+- [x] Python 3 implementation
+- [ ] Cython version
+- [ ] Pure Python for Pypy (without Pandas and Numpy dependency)
 
 ## Additional Info
 
diff --git a/cryptoalgotrading/aux.py b/cryptoalgotrading/aux.py
index 02015de..8090f55 100644
--- a/cryptoalgotrading/aux.py
+++ b/cryptoalgotrading/aux.py
@@ -396,7 +396,7 @@ def get_histdata_to_file(markets=None,
 
     if isinstance(markets,str): markets = [markets]
 
-    if not markets: 
+    if not markets:
         markets = get_markets_list(base_market, exchange)
 
     for market in markets:
@@ -540,7 +540,7 @@ def get_time_right(date_n_time):
     if '-' in date_n_time:
         try:
             t_day, t_month, t_year = t_date.split('-')
-        except Exception as e:
+        except Exception:
             t_day, t_month = t_date.split('-')
             t_year = str(localtime()[0])
 
diff --git a/cryptoalgotrading/cryptoalgotrading.py b/cryptoalgotrading/cryptoalgotrading.py
index 2ee190f..0040bfe 100644
--- a/cryptoalgotrading/cryptoalgotrading.py
+++ b/cryptoalgotrading/cryptoalgotrading.py
@@ -557,8 +557,9 @@ def backtest(markets,
     if not isinstance(exit_funcs,list): exit_funcs=[exit_funcs]
 
     # For selected markets.
-    if from_file: markets = manage_files(markets, interval=interval)
-    
+    if from_file: 
+        markets = manage_files(markets, interval=interval)
+
     log(str(len(markets)) + " files/chunks to analyse...", 1, log_level)
 
     # Create a multiprocessing Pool