arrays - Using Python 3, Is there a quicker way to pick out particular cell values in an excel spreadsheet besides sorting through lists generated by xlrd? - 


def data_search(security, statistic):     """takes in specific asset , desired statistic (e.g. 'gross er', 'asset class', etc),     returns answer cme or equity ranking template spreadsheet"""     securities = xlrd.open_workbook('desktop\\cme.xlsx').sheet_by_index(1)     securities_array = securities.col_values(1, start_rowx = 1, end_rowx = securities.nrows)     desired_security_row = securities_array.index(security) + 1     statistics_array = securities.row_values(0, start_colx = 0, end_colx = securities.ncols)     statistic_index = statistics_array.index(statistic)     return securities.row(desired_security_row)[statistic_index].value

i'm using python's xlrd read excel spreadsheet gather information , form list of financial data different assets. "cme" spreadsheet referenced in code above spreadsheet has 500 different financial assets ticker/symbol (e.g. 'aapl') running down column b on spreadsheet. x-axis has bunch of headers desired statistic such "gross expected return" , "yield". want able feed particular ticker , desired statistic function , return statistic ticker. code uses xlrd @ column b , generate list out of 500 securities (eg. ['aapl', 'schb', 'db', ...])then finds index of security how identifies right row. generates list of statistic types on spreadsheet (e.g. ['gross expected return', 'yield', 'beta', ...]) , finds index of desired statistic. @ correct row , return value of whatever's in cell of correct index.

when run for-loop calling function x amount of times on list of tickers, appears highly inefficient. curious see if had ideas on faster way either involving or not involving xlrd.


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