在python中使用数字数据读取csv的有效方法

I try to convert a code writen in Matlab into python. I'm trying to read dat file (it's a csv file). that file has about 30 columns and thousands of rows containing (only!) decimal number data (in Matlab it was read into double matrix). I'm asking for the fastest way to read the dat file and the most similar object/array/... to save the data into.I try to convert a code writen in Matlab into p