python - From tuple to 1d array -


i have list [(1,),(2,),(3,),(4,)] how can convert 1d array [1,2,3,4]? 

test = [(1,),(2,),(3,),(4,)] single = []  in test:     single.append(i[0])  print(single)

output

[1, 2, 3, 4]

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