gistfile1.py

import numpy as np

def process_file(filename, num_cols, delimiter='\t'):
    def items(infile):
        for line in infile:
            for item in line.rstrip().split(delimiter):
                yield float(item)

    with open(filename, 'r') as infile:
        data = np.fromiter(items(infile))

    return data.reshape((-1, num_cols))