No attr named query

Okay so I'm programming a Wolfram Alpha API and I added a res string with query and its giving me this error: AttributeError: 'str' object has no attribute 'query' Here's the PyDa.py:

import PySimpleGUI as sg                       
sg.theme('Dark Blue')

    app_id = ('API_key')
    client = (app_id)


layout = [  [sg.Text("Hello, my name's Ted. What's your question?")],   
        [sg.Input()],
        [sg.Button('Ok'), sg.Button('Cancel')] ]


window = sg.Window('Ted', layout)      


while True:
event, values = window.read()   
if event in (None, 'Cancel'):
        break


res = client.query(values[0])
print(next(res.results).text)




window.close()        

where values[0] is what the user enters. I've tried completely deleting query and it doesn't work. I thing I need to install something but when I try pip install wolframalpha api it does install but that's not whats missing/ is wrong. I should be getting pods but its not sending those because of the error.

Hmm, I don't know exactly what happens before the client.query call, but the AtrributeError says client is of type str. I don't think there is a problem with dependencies, because then the error would be different. The client is according to the docs defined with client = Client(getfixture('API_key')). If you have this in your code, then I have no idea what's wrong.