python - Numpy 'where' on string -


i use numpy.where function on string array. however, unsuccessful in doing so. can please me figure out?

for example, when use numpy.where on following example error: 

import numpy np  = ['apple', 'orange', 'apple', 'banana']  arr_index = np.where(a == 'apple',1,0)

i following: 

>>> arr_index array(0) >>> print a[arr_index] >>> apple

however, know indices in string array, string 'apple' matches. in above string happens @ 0 , 2. however, np.where returns 0 , not 2.

so, how make numpy.where work on strings? in advance. 

print a[arr_index]

not array_index!!

a = np.array(['apple', 'orange', 'apple', 'banana'])  arr_index = np.where(a == 'apple')  print arr_index  print a[arr_index]

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