csv to array

[scidam]

I would suggest you to use Pandas for such data manipulations.
e.g.

import pandas as pd
data = pd.read_csv('your_file.csv') # check sep (separator) parameter 
data.values # numpy array
data['col1'] #access data by column names

It is very flexible and allows to perform basic operations with the data, e.g. filtering,
grouping, i/o, descriptive statistics, etc.