update_params_for_link

get_param_from_link.py

import urllib.parse as urlparse
def get_url_param(url: str, param: str) -> str:
    url_parse = urlparse.urlparse(url)
    url_dict = dict(urlparse.parse_qsl(url_parse.query))
    return url_dict.get(param)

update_params_for_link.py

import urllib.parse as urlparse
from urllib.parse import urlencode


def update_url_params(url: str, params: dict) -> str:
    """
    update params of url
    :param url:
    :param params:
    :return:
    """
    url_parse = urlparse.urlparse(url)
    url_dict = dict(urlparse.parse_qsl(url_parse.query))
    url_dict.update(params)
    url_new_query = urlencode(url_dict)
    url_parse = url_parse._replace(query=url_new_query)
    return urlparse.urlunparse(url_parse)

url = "http://stackoverflow.com/search?q=question"
params = {
    'lang': 'en', 'tag': 'python',
    'q': 'hello'
}

print(update_params(url, params))
# Outputs http://stackoverflow.com/search?q=hello&lang=en&tag=python