from sklearn.preprocessing import OneHotEncoder
import numpy as np

X = np.array([['mujer'],
['hombre'],
['hombre'],
['mujer']])

encoder = OneHotEncoder()
print(encoder.fit_transform(X).toarray()) 
'''
[[0. 1.]
 [1. 0.]
 [1. 0.]
 [0. 1.]]
'''