flake8 3.7.1 fixes

freqtrade/exchange/__init__.py

@@ -237,7 +237,7 @@ class Exchange(object):
                     f'Exchange {self.name} does not support market orders.')
 
         if order_types.get('stoploss_on_exchange'):
-            if self.name is not 'Binance':
+            if self.name != 'Binance':
                 raise OperationalException(
                     'On exchange stoploss is not supported for %s.' % self.name
                 )
@@ -247,7 +247,7 @@ class Exchange(object):
         Checks if order time in force configured in strategy/config are supported
         """
         if any(v != 'gtc' for k, v in order_time_in_force.items()):
-            if self.name is not 'Binance':
+            if self.name != 'Binance':
                 raise OperationalException(
                     f'Time in force policies are not supporetd for  {self.name} yet.')
 

freqtrade/tests/rpc/test_fiat_convert.py

@@ -117,7 +117,7 @@ def test_fiat_convert_get_price(mocker):
     assert fiat_convert._pairs[0].crypto_symbol == 'BTC'
     assert fiat_convert._pairs[0].fiat_symbol == 'USD'
     assert fiat_convert._pairs[0].price == 28000.0
-    assert fiat_convert._pairs[0]._expiration is not 0
+    assert fiat_convert._pairs[0]._expiration != 0
     assert len(fiat_convert._pairs) == 1
 
     # Verify the cached is used

freqtrade/vendor/qtpylib/indicators.py

@@ -236,7 +236,7 @@ def crossed(series1, series2, direction=None):
     if direction is None:
         return above or below
 
-    return above if direction is "above" else below
+    return above if direction == "above" else below
 
 
 def crossed_above(series1, series2):