Update suspect configuration

def configure_suspect(host_url, username, password, project_key, fields_list, link_type_id, scope, notify_assignee,
                      notify_reporter, notify_project_lead, notify_user_list):
    """
    This method is used to configure the Requirements Suspect Configuration
    Query parameters:
    [project_key] the project key
    Query parameters:
    [fields_list] fields that trigger a suspect
    [link_type_id] link types that should be affected if a field change
    [scope] define if a change in an issue will trigger suspect. Accepts 'both' or 'downstream'
    [notify_assignee] notify assignee if set to true
    [notify_reporter] notify reporter if set to true
    [notify_project_lead] notify project lead if set to true
    [notify_user_list] the jira users to be notified
    """

    # The REST API path to configure the Requirements Suspect Configuration
    path_uri = '/rest/com.easesolutions.jira.plugins.requirements/1.0/' + project_key + '/suspectconfiguration?'

    # The query string to be added to the URI
    query_string = ""

    # The field-value pair/s for the query string of the URI
    if fields_list:
        query_string += 'fieldList=' + fields_list
    if link_type_id:
        if query_string:
            query_string += '&linkTypeIds=' + link_type_id
        else:
            query_string += 'linkTypeIds=' + link_type_id
    if scope:
        if query_string:
            query_string += '&scope=' + scope
        else:
            query_string += 'scope=' + scope
    if notify_assignee:
        if query_string:
            query_string += '&notifyAssignee=' + notify_assignee
        else:
            query_string += 'notifyAssignee=' + notify_assignee
    if notify_reporter:
        if query_string:
            query_string += '&notifyReporter=' + notify_reporter
        else:
            query_string += 'notifyReporter=' + notify_reporter
    if notify_project_lead:
        if query_string:
            query_string += '&notifyProjectLead=' + notify_project_lead
        else:
            query_string += 'notifyProjectLead=' + notify_project_lead
    if notify_user_list:
        if query_string:
            query_string += '&notifyUserList=' + notify_user_list
        else:
            query_string += 'notifyUserList=' + notify_user_list

    # Send a PUT request to configure the Requirements Suspect Configuration
    # Return the result of the PUT request
    try:
        return requests.put(host_url + path_uri + query_string, auth=HTTPBasicAuth(username, password))
    except requests.exceptions.RequestException as e:
        print e

# ['SC'] the project key parameter where the suspect will be configured
# ['summary'] the field parameter for the fields list
# ['-1'] the id parameter to select all link types
# ['down'] The scope parameter of the configuration
# ['true'] boolean parameter for Assignee notification
# ['true'] boolean parameter for reporter notification
# ['true'] boolean parameter for project lead notification
# ['myUser'] users parameter for the users to be notified.
# Store the result of the POST request to [response]
response = configure_suspect(HOST_URL, USERNAME, PASSWORD, 'SC', 'summary', '-1', 'down', 'true',
                             'true', 'true', 'myUser')

# Check response if Suspect is configured
if response.status_code == 200:
    print response.text
else:
    print 'Error code: ', response.status_code
    print response.text

Suspect Configuration saved for SC