Error: name 'keystore' is not defined

[Zambi9]

Followed the readme, "BIP39-BIP44 Standard Wallets" section, with the commands below, in IDLE:

>>> from cryptos import *
>>> words = entropy_to_words(os.urandom(16))
>>> words
'husband surface feel slice route air coin record want patient galaxy honey'
>>> keystore.bip39_is_checksum_valid(words)
Traceback (most recent call last):
  File "<pyshell#7>", line 1, in <module>
    keystore.bip39_is_checksum_valid(words)
NameError: name 'keystore' is not defined
>>> coin = Bitcoin()
>>> wallet = coin.wallet(words)
Traceback (most recent call last):
  File "<pyshell#9>", line 1, in <module>
    wallet = coin.wallet(words)
AttributeError: 'Bitcoin' object has no attribute 'wallet'
>>> 

[Zambi9]

Ok, evidently I don't have keystore.py as well as a few other files.
I used pip install cryptos for installation.
I now tried to uninstall, download the zip and install that way, I got other errors.
What is the current recommended way to install to have everything working as in the readme?

[Zambi9]

Solved by downloading the zip (or using git clone), then pip install Pbkdf2
Will be great if you could update the package at PyPI (or revise installation instructions in the readme)

[primal100]

Should be working in latest version 2.0.4.