Add float initializer to FtPrecise

freqtrade/util/ft_precise.py

@@ -1,9 +1,12 @@
 """
 Slim wrapper around ccxt's Precise (string math)
-To have imports from freqtrade
+To have imports from freqtrade - and support float initializers
 """
 from ccxt import Precise
 
 
 class FtPrecise(Precise):
-    pass
+    def __init__(self, number, decimals=None):
+        if not isinstance(number, str):
+            number = str(number)
+        super().__init__(number, decimals)