algo.py

def initialize(context):
    # avoid out of bounds error by dropping firstBottomDate col
    patterns = pd.read_csv("data/patterns.csv").drop(["firstBottomDate"], axis=1)
    patterns = convert_date_cols(patterns)
    context.patterns = patterns

    tickers = pd.read_csv("data/tickers.csv")
    tickers = convert_date_cols(tickers)
    context.stocks = [zp.api.symbol(ticker) for ticker in tickers.symbol]

    context.position_dates = {}