try:
 from array import array
except ImportError:
 print("SKIP")
 raise SystemExit

def test(a):
 print(a)
 a.append(1.2)
 print(len(a), '%.3f' % a[0])
 a.append(1)
 a.append(False)
 print(len(a), '%.3f %.3f' % (a[1], a[2]))
 a[-1] = 3.45
 print('%.3f' % a[-1])

test(array('f'))
test(array('d'))

print('{:.4f}'.format(array('f', b'\xcc\xcc\xcc=')[0]))