Error Social Appp Python

C:\Users\Rares\Documents\Social Network>python app.py
Traceback (most recent call last):
  File "app.py", line 180, in <module>
    admin=True
  File "C:\Users\Rares\Documents\Social Network\models.py", line 56, in create_u
ser
    password=generate_password_hash(password),
  File "C:\Python34\lib\site-packages\flask_bcrypt-0.6.2-py3.4.egg\flask_bcrypt.
py", line 47, in generate_password_hash
    return Bcrypt().generate_password_hash(password, rounds)
  File "C:\Python34\lib\site-packages\flask_bcrypt-0.6.2-py3.4.egg\flask_bcrypt.
py", line 159, in generate_password_hash
    return bcrypt.hashpw(password, bcrypt.gensalt(rounds))
  File "C:\Python34\lib\site-packages\bcrypt\__init__.py", line 139, in hashpw
    raise TypeError("Unicode-objects must be encoded before hashing")
TypeError: Unicode-objects must be encoded before hashing

C:\Users\Rares\Documents\Social Network>