hash_password doesn't work with python 3

[peterhoeg]

Description

hash_password doesn't work with python 3 while perfectly fine with python 2.

peter@dolores:d8ckawjc9q4wz968ysp2mzabi2ykci7v-matrix-synapse-0.33.8/bin $ ./hash_password                                             
  File "/nix/store/d8ckawjc9q4wz968ysp2mzabi2ykci7v-matrix-synapse-0.33.8/bin/.hash_password-wrapped", line 53
    print bcrypt.hashpw(password + password_pepper, bcrypt.gensalt(bcrypt_rounds))
               ^
SyntaxError: invalid syntax

Version information

• Homeserver: Own home server
• Version: 0.33.8
• Install method: package manager
• Platform: NixOS

[hawkowl]

Fixed in #4161