PSI_url_construct.py

service_url = "https://www.googleapis.com/pagespeedonline/v5/runPagespeed/"
def speed_test_url(url, device):
    params = {
        "?url": url,
        'strategy': device,
        'key': key,
        }
    data = urllib.parse.urlencode(params, doseq=True)
    main_call = urllib.parse.urljoin(service_url, data)
    main_call = main_call.replace(r'%3F', r'?')
    return main_call
    
test_url = speed_test_url(url='https://example.com', device='mobile')

response = requests.get(test_url).json()