WIP: Poloniex exchange - fix for multiple exchanges

catalyst/exchange/poloniex/poloniex_api.py

@@ -40,7 +40,6 @@ class Poloniex_api(object):
             req['command'] = method
             req['nonce']   = int(time.time()*1000)
             post_data      = urllib.parse.urlencode(req)
-            print(post_data)
             signature      = hmac.new(self.secret, post_data, hashlib.sha512).hexdigest()
             headers        = { 'Sign': signature, 'Key': self.key}
         else:

catalyst/utils/run_algo.py

@@ -170,7 +170,6 @@ def _run(handle_data,
                 base_currency=base_currency,
                 portfolio=portfolio
             )
-
         elif exchange_name == 'bittrex':
             exchanges[exchange_name] = Bittrex(
                 key=exchange_auth['key'],
@@ -179,7 +178,7 @@ def _run(handle_data,
                 portfolio=portfolio
             )
         elif exchange_name == 'poloniex':
-            exchange = Poloniex(
+            exchanges[exchange_name] = Poloniex(
                 key=exchange_auth['key'],
                 secret=exchange_auth['secret'],
                 base_currency=base_currency,