def _vk_login(self, captcha_sid=None, captcha_key=None):

[m0v34x]

<title data-lang-key="title">��ибка 429</title> <style> * { box-sizing: border-box; } html, body { padding: 0; margin: 0; font-family: -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Geneva, "Noto Sans Armenian", "Noto Sans Bengali", "Noto Sans Cherokee", "Noto Sans Devanagari", "Noto Sans Ethiopic", "Noto Sans Georgian", "Noto Sans Hebrew", "Noto Sans Kannada", "Noto Sans Khmer", "Noto Sans Lao", "Noto Sans Osmanya", "Noto Sans Tamil", "Noto Sans Telugu", "Noto Sans Thai", sans-serif, arial, Tahoma, verdana; } h1 { font-size: 20px; line-height: 24px; color: #000000; margin: 0; font-weight: 500; } p { font-size: 16px; line-height: 20px; color: #818C99; margin: 8px 0; } body { display: flex; justify-content: center; align-items: center; min-height: 100vh; min-width: 230px; } .centered { padding: 10px; text-align: center; max-width: 330px; } .hidden { display: none; } .error { padding: 8px 12px; background: #faebeb; color: rgba(0, 0, 0, 0.72); } @media (prefers-color-scheme:dark) { body, html { background: #0a0a0a; } h1 { color: #e1e3e6; } p { color: #76787a; } .error { background: rgba(230, 70, 70, 0.16); color: rgba(225, 227, 230, 0.72); } } </style>

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SparkMD5});
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    /*! (c) Andrea Giammarchi - ISC */
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    var langKeys = {
      en: {
        title: 'Error 429',
        heading: 'You�re requesting a lot!',
        description: 'Or rather, your browser is sending too many requests, and the VK server has sounded the alarm.',
        teleport: 'Teleporting back in&nbsp;5&nbsp;seconds.',
        https: "This page was downloaded by HTTP instead of secure HTTP<strong>S</strong>, which means it won't teleport back.<br/>Contact the service support.",
        cookies: 'You disabled Cookies but you need them to resolve the problem.',
        hash429: "For some reason the page didn't get all the data, and it doesn't work without it.<br/>Contact the service support."
      }
    };

    document.querySelector('#description').classList.add('hidden');
    setTimeout(() => {
      document.querySelector('#description').classList.remove('hidden');
    }, 1200);

    function show (langKey) {
      document.querySelector('[data-lang-key="'+ langKey +'"]').classList.remove('hidden');
    }

    if (!navigator.languages.includes('ru')) {
      var lang = langKeys.en;
      document.querySelector('html').setAttribute('lang', 'en');
      Object.keys(lang).forEach(function(key) {
        document.querySelectorAll('[data-lang-key='+ key +']').forEach(function(el){
          el.innerHTML = lang[key];
        });
      });
    }

    var WAF_CHECK_RESPONSE_STATUS = 429;
    var WAF_CHECK_RESPONSE_SOURCE = '429.html';
    var WAF_TIMEOUT = 0;
    var COOKIE_SUPPORT_NAME = '__cookie-check__';

    if (window.self !== window.top) {
      window.top.postMessage({
        action: 'use_meta',
        type: 'frame_transport',
        data: {
          status: WAF_CHECK_RESPONSE_STATUS,
          source: WAF_CHECK_RESPONSE_SOURCE,
        }
      }, '*')
    }

    if (window.location.protocol !== 'https:') {
      show('https');
      return;
    }

    var url = new URL(window.location.href);
    var hash429 = url.searchParams.get('hash429');

    if (!hash429) {
      Cookies.set(COOKIE_SUPPORT_NAME, 'ok');
      var isCookiesSupported = Cookies.get(COOKIE_SUPPORT_NAME) === 'ok';
      Cookies.remove(COOKIE_SUPPORT_NAME);

      if (!isCookiesSupported) {
        show('cookies');
        return;
      }
      hash429 = Cookies.get('hash429');
    }

    setTimeout(function () {
      if (hash429 && typeof hash429 === 'string') {
        if (url.searchParams.has('key')) {
          url.searchParams.set('key', SparkMD5.hash(hash429));
        } else {
          url.searchParams.append('key', SparkMD5.hash(hash429));
        }
        show('teleport');
        window.location.replace(url.href);
        return;
      }

      show('hash429');
    }, WAF_TIMEOUT);
  })();
</script>

[m0v34x]

When I try to authorize through a proxy, sometimes this error occurs. This is a clean response from vk. Translated as "title: 'Error 429',heading:'Youâre requesting a lot!',description: 'Or rather, your browser is sending too many requests, and the VK server has sounded the alarm.',"
There is also an error of outdated browser when using useragents.

[python273]

Partially fixed in 11.9.9 (#469)

python3 -m pip install -U vk-api