Check the type of array in Numpy

from numpy import array
a = array([1,2,3])
a.dtype  # dtype('int32')
a.dtype.kind  # 'i', for 'integer'

s = array(['a','b','c'])
s.dtype  # dtype('|S1')
s.dtype.kind  # 'S' for 'string'

f = array([1., 2., 3.])
f.dtype  # dtype('float64')
f.dtype.kind  # 'f' for 'float'