REF: Use Py3.6 PEP 515 underscores in numeric literals

Author: kernc

backtesting/_plotting.py

@@ -86,7 +86,7 @@ def lightness(color, lightness=.94):
     return color.to_rgb()
 
 
-_MAX_CANDLES = 10000
+_MAX_CANDLES = 10_000
 
 
 def _maybe_resample_data(resample_rule, df, indicators, equity_data, trades):

backtesting/backtesting.py

@@ -969,7 +969,7 @@ def __init__(self,
                  data: pd.DataFrame,
                  strategy: Type[Strategy],
                  *,
-                 cash: float = 10000,
+                 cash: float = 10_000,
                  commission: float = .0,
                  margin: float = 1.,
                  trade_on_close=False,

doc/examples/Quick Start User Guide.ipynb

@@ -646,7 +646,7 @@
    "source": [
     "from backtesting import Backtest\n",
     "\n",
-    "bt = Backtest(GOOG, SmaCross, cash=10000, commission=.002)\n",
+    "bt = Backtest(GOOG, SmaCross, cash=10_000, commission=.002)\n",
     "stats = bt.run()\n",
     "stats"
    ]

doc/examples/Quick Start User Guide.py

@@ -155,7 +155,7 @@ def next(self):
 # +
 from backtesting import Backtest
 
-bt = Backtest(GOOG, SmaCross, cash=10000, commission=.002)
+bt = Backtest(GOOG, SmaCross, cash=10_000, commission=.002)
 stats = bt.run()
 stats
 # -