ModuleNotFoundError: No module named 'six'

[Cerberus-75]

Please describe your issue in detail. Please also include any relevant
stack traces or other error messages. Ideally, if possible, provide a
small snippet that recreates the problem. Finally, fill in the applicable
fields below which describe the environment you witnessed the issue in.

• Python-valve Version(s): 0.2.1
• Python Version(s): 3.6
• Operating System(s)/Platform(s): Windows 10 Home
• Game Server(s) and Version(s): TF2

when i run a simple command :
import valve.source.a2s

SERVER_ADDRESS = ("139.99.167.214:27025")

with valve.source.a2s.ServerQuerier(SERVER_ADDRESS) as server:
info = server.info()
players = server.players()

print("{player_count}/{max_players} {server_name}".format(**info))
for player in sorted(players["players"],
key=lambda p: p["score"], reverse=True):
print("{score} {name}".format(**player))

in cmd it outputs "ModuleNotFoundError: No module named 'six'"

[TotallyNotChase]

This might be client side, are you sure the module is correctly added in the pythonpath