You should use the csv
module:
import csv results = [] with open("input.csv") as csvfile: reader = csv.reader(csvfile, quoting=csv.QUOTE_NONNUMERIC) # change contents to floats for row in reader: # each row is a list results.append(row)
This gives:
[[0.000264, 0.000352, 8.7e-05, 0.000549], [0.00016, 0.000223, 1.1e-05, 0.000142], [0.008853, 0.006519, 0.002043, 0.009819], [0.002076, 0.001686, 0.000959, 0.003107], [0.000599, 0.000133, 0.000113, 0.000466], [0.002264, 0.001927, 0.00079, 0.003815], [0.002761, 0.00288, 0.001261, 0.006851], [0.000723, 0.000617, 0.000794, 0.002189]]
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