Python 3 Challenge

challenge.py

# Python 3
from urllib.parse import urlencode


def gen_url(query_params={}, include_auth=True):
    uri = 'http://google.com'
    auth_key = 'default_value'
    
    if include_auth:
        query_params['default_param'] = auth_key
        
    if not query_params:
        return uri
        
    encoded_query = urlencode(query_params)
    return f'{uri}?{encoded_query}'
    

assert gen_url(include_auth=False) == 'http://google.com'
assert gen_url(include_auth=True) == 'http://google.com?default_param=default_value'
assert gen_url(query_params={'param_a': 'a'}, include_auth=True) == 'http://google.com?param_a=a&default_param=default_value'
assert gen_url(query_params={'param_a': 'a'}, include_auth=False) == 'http://google.com?param_a=a'
assert gen_url(include_auth=False) == 'http://google.com', 'this should be equal to the first assert. It should be idempotent.'


print('Congratulations! You solved it! Please explain it to me.')