reformat position string and remove instrument restriction

Author: sdliriano

bitmex.py

@@ -61,6 +61,6 @@ def display_positions(secret, id_api):
     position_list = get_position_list(secret, id_api)
     position_string = ""
     for pos in position_list:
-        position_string += str(pos) + "\n\n"
+        position_string += (str(pos) + "\n")
     return position_string
 

position.py

@@ -77,5 +77,4 @@ def set_realised_pnl(self, p):
         self.realised_pnl = p
 
     def __str__(self):
-        if self.symbol.lower() == "xbtusd":
-            return "Instrument: " + self.symbol + "\n" +"Direction: "+ self.direction +"\n" + "Position Size: " + str(self.position_size) + " Contracts" +"\n" + "Value: " + str(abs(self.position_value / 100000000)) + " XBT" + "\n" + "Entry Price: $" + str(self.entry) + "\n" + "Market Price: $" + str(self.market_price) + "\n" +"Liquidation Price: $" + str(self.liquidation_price) + "\n" + "Margin: " + str(self.margin / 100000000) + " XBT" +"\n" + "Leverage: " + str(self.leverage) +"x" + "\n" + "Unrealised PNL: " + str(format(self.unrealised_pnl / 100000000, 'f')) + " XBT" + "\n" + "Realised PNL: " + str(format(self.realised_pnl / 100000000, 'f')) + " XBT" + "\n"
+        return "Instrument: " + self.symbol + "\n" +"Direction: "+ self.direction +"\n" + "Position Size: " + str(self.position_size) + " Contracts" +"\n" + "Value: " + str(abs(self.position_value / 100000000)) + " XBT" + "\n" + "Entry Price: $" + str(self.entry) + "\n" + "Market Price: $" + str(self.market_price) + "\n" +"Liquidation Price: $" + str(self.liquidation_price) + "\n" + "Margin: " + str(self.margin / 100000000) + " XBT" +"\n" + "Leverage: " + str(self.leverage) +"x" + "\n" + "Unrealised PNL: " + str(format(self.unrealised_pnl / 100000000, 'f')) + " XBT" + "\n" + "Realised PNL: " + str(format(self.realised_pnl / 100000000, 'f')) + " XBT" + "\n"