Algorithmic trading using Python with Interactive Brokers Robinhood TD Ameritrade: security info

IBridgePy, www.iBridgePy.com, is a flexible and easy-to-easy python platform to help traders build automated algorithmic trading robots. You can use IBridgePy to back test strategies and trade with Interactive Brokers IB, Robinhood and TD Ameritrade. This tutorial is to introduce security_info.csv as a database in IBridgePy Agenda: * Answer why security_info.csv is needed in IBridgePy * Explain each column in security_info.csv * Get exchange and primaryExchange from IB’s contract search database * Add new securities into security_info.csv for trading * Use superSymbol( )