diff --git a/freqtrade/configuration/timerange.py b/freqtrade/configuration/timerange.py
index f980b71ea..ec6eb75e6 100644
--- a/freqtrade/configuration/timerange.py
+++ b/freqtrade/configuration/timerange.py
@@ -7,7 +7,7 @@ from typing import Optional
 import arrow
 
 
-class TimeRange():
+class TimeRange:
     """
     object defining timerange inputs.
     [start/stop]type defines if [start/stop]ts shall be used.
diff --git a/freqtrade/data/dataprovider.py b/freqtrade/data/dataprovider.py
index 7e2a6b407..eb6ec0f2a 100644
--- a/freqtrade/data/dataprovider.py
+++ b/freqtrade/data/dataprovider.py
@@ -17,7 +17,7 @@ from freqtrade.state import RunMode
 logger = logging.getLogger(__name__)
 
 
-class DataProvider():
+class DataProvider:
 
     def __init__(self, config: dict, exchange: Exchange) -> None:
         self._config = config
diff --git a/freqtrade/edge/__init__.py b/freqtrade/edge/__init__.py
index 807fd8825..66a777ce5 100644
--- a/freqtrade/edge/__init__.py
+++ b/freqtrade/edge/__init__.py
@@ -28,7 +28,7 @@ class PairInfo(NamedTuple):
     avg_trade_duration: float
 
 
-class Edge():
+class Edge:
     """
     Calculates Win Rate, Risk Reward Ratio, Expectancy
     against historical data for a give set of markets and a strategy