fix pep8

 DuckDuckGo (Web)

"""

from lxml.html import fromstring

from json import loads

from searx.utils import extract_text, match_language, eval_xpath

from searx.utils import extract_text, match_language

from searx import logger

import re

import httpx

supported_languages_url = 'https://duckduckgo.com/util/u172.js'

time_range_support = True

safesearch = True

VQD_REGEX = r"vqd='(\d+-\d+-\d+)'";

VQD_REGEX = r"vqd='(\d+-\d+-\d+)'"

language_aliases = {

    'ar-SA': 'ar-XA',

    'es-419': 'es-XL',

                   'month': 'm',

                   'year': 'y'}

# match query's language to a region code that duckduckgo will accept

def get_region_code(lang, lang_list=None):

    if lang == 'all':

    # country code goes first

    return lang_parts[1].lower() + '-' + lang_parts[0].lower()

def get_vqd(query):

    resp = httpx.get(f"https://duckduckgo.com/?q={query}&ia=web")

    resp = re.findall(VQD_REGEX, resp.text)

    return resp[0]

def request(query, params):

    if params['time_range'] is not None and params['time_range'] not in time_range_dict:

        return params

        't': 'D',

        'l': params["language"],

        'kl': get_region_code(params["language"]),

        's': 0, # TODO

        's': 0,

        'dl': 'en',

        'ct': 'US',

        'ss_mkt': get_region_code(params["language"]),

    # parse the response

    results = []

    doc = fromstring(resp.text)

    data = re.findall(r"DDG\.pageLayout\.load\('d',(\[.+\])\);DDG\.duckbar\.load\('images'", str(resp.text))

    search_data = loads(data[0].replace('/\t/g', '    '))

    if len(search_data) == 1 and ('n' not in search_data[0]):

        only_result = search_data[0]

        if ((only_result.get("da") is not None and only_result.get("t") == 'EOF') or only_result.get('a') is not None or only_result.get('d') == 'google.com search'):

        if ((only_result.get("da") is not None and only_result.get("t") == 'EOF') or

                only_result.get('a') is not None or only_result.get('d') == 'google.com search'):

            return

    for search_result in search_data:

        if 'n' in search_result:

            continue

        results.append({'title': search_result.get("t"),

                        'content': extract_text(search_result.get('a')),

                        'url': search_result.get('u')})

    # parse correction

    # for correction in eval_xpath(doc, correction_xpath):

    #     # append correction

    #     results.append({'correction': extract_text(correction)})

    return results