From 0682f142d27ae97f8591b8d53cbef516e5359efe Mon Sep 17 00:00:00 2001
From: creslin <34645187+creslinux@users.noreply.github.com>
Date: Mon, 30 Jul 2018 10:27:19 +0000
Subject: [PATCH] Update __init__.py

Moved to pow(10, on recommendation from core team
Removed excessive boiler plating for simple function

Tested on sandbox with print output and in scratch

conn is HTTPSConnectionPool(host='api-public.sandbox.gdax.com', port=443)
conn is HTTPSConnectionPool(host='api-public.sandbox.gdax.com', port=443)
be_amount 0.00610615427076642
sym prec is 8
af_amount 0.00610615
b4_price 8188.46
sym prec is 2
af_price 8188.46
---
 freqtrade/exchange/__init__.py | 18 ++++--------------
 1 file changed, 4 insertions(+), 14 deletions(-)

diff --git a/freqtrade/exchange/__init__.py b/freqtrade/exchange/__init__.py
index 4792a0a21..0f89eb660 100644
--- a/freqtrade/exchange/__init__.py
+++ b/freqtrade/exchange/__init__.py
@@ -155,32 +155,22 @@ class Exchange(object):
         '''
         Returns the amount to buy or sell to a precision the Exchange accepts
         Rounded down
-        :param pair: the symbol
-        :param amount: amount
-        :return: amount
         '''
         if self._api.markets[pair]['precision']['amount']:
             symbol_prec = self._api.markets[pair]['precision']['amount']
-            multiplier = int('1' + ('0' * symbol_prec))
-            big_amount = amount * multiplier
-            round_down = floor(big_amount)
-            amount = round_down / multiplier
+            big_amount = amount * pow(10, symbol_prec)
+            amount = floor(big_amount) / pow(10, symbol_prec)
         return amount
 
     def symbol_price_prec(self, pair, price: float):
         '''
         Returns the price buying or selling with to the precision the Exchange accepts
         Rounds up
-        :param pair: the symbol
-        :param price: amount
-        :return: price
         '''
         if self._api.markets[pair]['precision']['price']:
             symbol_prec = self._api.markets[pair]['precision']['price']
-            multiplier = int('1' + ('0' * symbol_prec))
-            big_price = price * multiplier
-            round_up = ceil(big_price)
-            price = round_up / multiplier
+            big_price = price * pow(10, symbol_prec)
+            price = ceil(big_price) / pow(10, symbol_prec)
         return price
 
     def buy(self, pair: str, rate: float, amount: float) -> Dict: