python - 无法通过 XPATH 选择元素

Question

全球的：

import re

from selenium import webdriver
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
from selenium.common.exceptions import TimeoutException

from patterns import PATTERNS


PATTERNS = {

    'select_list': {
        'click': r'javascript.*[0-9]+.*\s.*[0-9]+.*\s.*{}.*;',
        'select_list_views': r'/Integration/chooselist/{}'
    },

    login: {"..."}

}

driver = webdriver.Firefox()
driver.get(r"login_uri")

此部分指向目标页面，

views(PATTERNS['login'])  # func performs login

list_name = r'ABC TEXT.COM'
pk = 1234

# get lists_views
lists_href = r'//a[@href="{}"]'.format(PATTERNS['select_list']['select_list_views'].format(pk))
WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, lists_href))).click()

source = driver.page_source  # page source HTML

thenelement_href将从: 解析source = driver.page_source，使用标志list_name

element_href = '//a[@href="{}".format(re.findall(r'javascript.*[0-9]+.*\s.*[0-9]+.*\s.*{}.*;'.format(list_name), source)[0])
会喜欢：

'//a[@href="javascript:postSelect("123", "1234", "ABC TEXT.COM");"]'

这与检查过的稍有不同，似乎 JS 函数重新格式化了链接，我不知道确切的时间。

检查元素的链接：

<a href="javascript:postSelect("123", "1234", "ABC TEXT.com");">Select</a>

最后，当我尝试通过 XPATH 选择元素时：

try:
    element_href = r'//a[@href="{}"]'.format(re.findall(PATTERNS['select_list']['click'].format(list_name), source)[0])

    WebDriverWait(driver, 10).until(EC.element_to_be_clickable((By.XPATH, element_href))).click()

except IndexError:
    print("could not parse link")

我可以通过使用从 Firefox 复制的 XPATH 选择它来单击该元素：

driver.find_element(By.XPATH, '/html/body/div[2]/div/div[4]/table/tbody/tr[104]/td[3]/a').click()

复制的 XPATH 的唯一问题是，没有动态方式将其映射到，list_name因为104 != 123

html_source 中的脚本：

    <div style="float: none; clear: both;"></div>

    </div>




<script data-cfasync="false" src="/cdn-cgi/scripts/5c5dd728/cloudflare-static/email-decode.min.js"></script><script src="https://some_url/jquery-ui-1.10.3.custom.min.js"></script>
    <script src="https://some_url/jquery.ui.touch-punch.min.js"></script>
    <script src="https://some_url/js/bootstrap.min.js"></script>
    <script src="https://some_url/bootstrap-select.js"></script>
    <script src="https://some_url/bootstrap-switch.js"></script>
    <script src="https://some_url/flatui-checkbox.js"></script>
    <script src="https://some_url/flatui-radio.js"></script>
    <script src="https://some_url/jquery.tagsinput.js"></script>
    <script src="https://some_url/jquery.placeholder.js"></script>

    <script src="https://some_url/jquery.fancybox.min.js"></script>

    <script type="text/javascript">
        function ShowLoadingAJAX() {
            $('body').addClass("loading");
        }

        function HideLoadingAJAX() {
            $('body').removeClass("loading");
        }

        function DisplaySuccessMessage(msg) {
            $('#alert_danger').hide();
            $('#alert_info').hide();

            $('#alert_success_message').html(msg);
            $('#alert_success').show();
        }

        function AppendSuccessMessage(msg) {
            $('#alert_danger').hide();
            $('#alert_info').hide();

            $('#alert_success_message').html($('#alert_success_message').html() + '<br/>&nbsp;&nbsp;&rarr;&nbsp;' + msg);
            $('#alert_success').show();
        }

        function DisplayErrorMessage(msg) {
            $('#alert_success').hide();
            $('#alert_info').hide();

            $('#alert_danger_message').html(msg);
            $('#alert_danger').show();
        }

        function DisplayInfoMessage(msg) {
            $('#alert_danger').hide();
            $('#alert_success').hide();

            $('#alert_info_message').html(msg);
            $('#alert_info').show();
        }

        function HideSuccessMessage() {
            $('#alert_success_message').html('');
            $('#alert_success').hide();
        }

        function HideErrorMessage() {
            $('#alert_danger_message').html('');
            $('#alert_danger').hide();
        }

        function HideInfoMessage() {
            $('#alert_info_message').html('');
            $('#alert_info').hide();
        }


        function loginAsSuperUser(id) {
            $('#SuperLoginAsUserID').val(id);
            $('#superLoginForm').submit();
        }


        $(document).ready(function () {

            $('#some_string_body').css('display', 'block');

            var tooltipOptions = { placement: 'right' };
            $('.some_string_tooltip').tooltip(tooltipOptions);

            var popoverOptions = { placement: 'right' };
            $('.some_string_popover').popover(popoverOptions);

            $('#alert_success_close_button').click(function (e) {
                e.preventDefault();
                $('#alert_success_message').html('');
                $('#alert_success').hide();
            });

            $('#alert_danger_close_button').click(function (e) {
                e.preventDefault();
                $('#alert_danger_message').html('');
                $('#alert_danger').hide();
            });

            $('#alert_info_close_button').click(function (e) {
                e.preventDefault();
                $('#alert_info_message').html('');
                $('#alert_info').hide();
            });


        });
    </script>

    <script>
        var href_parts = window.location.href.split('/');
        var lastFancyboxHeight = 0;
        var fancyDocReady = false;
        var fancyRefreshParent = false;

        function escapeHtml(unsafe) {
            return unsafe
                .replace(/&/g, "&amp;")
                .replace(/</g, "&lt;")
                .replace(/>/g, "&gt;")
                .replace(/"/g, "&quot;")
                .replace(/'/g, "&#039;");
        }

        function getFancyboxY(id) {
            var bs = $('#' + id + '-box-statement');
            if (bs.length && bs.offset() && bs.offset().top) {
                return (bs.offset().top + 'px');
            } else {
                return '200px';
            }
        }

        function showActivityLog() {
            var href_iframe_url = href_parts[0] + '//' + href_parts[2] + '/Activity/Recent';

            //$('#fancy-styler').html('.fancy-styler-top { top: ' + getFancyboxY(id) + ' !important; }');

            $.fancybox({
                type: 'iframe',
                href: href_iframe_url,
                scrolling: 'no',
                padding: 0,
                openEffect: 'none',
                closeEffect: 'none',
                closeClick: false,
                nextClick: false,
                autoResize: false,
                autoHeight: false,
                autoSize: false,
                autoCenter: true,
                fitToView: false,
                //fixed: false,
                width: 1160,
                height: 900,
                tpl: {
                    closeBtn: '<div style="position: absolute; top: -22px; left: 0px; z-index: 8040; height: 28px; line-height: 30px; background-color: #428bca; color: #fff; cursor: pointer; font-size: 14px; font-weight: bold; padding-left: 12px; padding-right: 12px; border-top-right-radius: 6px; border-top-left-radius: 6px;">Recent Activity</div>'
                },
                afterClose: function () {

                },
                beforeShow: function () {
                    //$(".fancybox-wrap").addClass("fancy-condition-editor-2");
                    $(".fancybox-wrap").addClass("fancy-styler-top-2");
                }
            });
        }

        function getActivitiesColorAjax() {
            NumProfileActivityChecks++;

            if ($('#__AjaxAntiForgeryForm input[name=__RequestVerificationToken]').length) {
                $.ajaxSetup({ cache: false });
                var dataPost = {
                    __RequestVerificationToken: $('#__AjaxAntiForgeryForm input[name=__RequestVerificationToken]').val(),
                    p1: "a",
                    p2: "b"
                };
                $.post("/Activity/PostColorAjax", dataPost, function (data) {
                    if (!data.color || data.color === 'green') {
                        //$('#profile-name-icon').css('color', '#1abc9c');
                        $('#profile-name-icon').css('color', OriginalProfileNameIconColor);
                    } else {
                        $('#profile-name-icon').css('color', '#e74c3c');
                    }

                    //console.log('PostColorAjax (' + NumProfileActivityChecks + '): ' + data.color);

                    if (NumProfileActivityChecks <= 10) {
                        //for the first 10 minutes, check every 60 seconds.
                        setTimeout(getActivitiesColorAjax, 60000);
                    } else if (NumProfileActivityChecks <= 120) {
                        //for the first 120 minutes, check every 120 seconds.
                        setTimeout(getActivitiesColorAjax, 120000);
                    } else {
                        //after 120 minutes, start checking with exponential backoff.
                        //120 + (NumProfileActivityChecks - 120) * 2
                        var tot = 1000 * (120 + Math.pow((NumProfileActivityChecks - 120), 2));
                        setTimeout(getActivitiesColorAjax, tot);
                    }
                });
            }
        }
    </script>


    <script type="text/javascript">


        $(document).ready(
            function () {
                //$('a[rel="popover"]').popover({placement: 'bottom'});
                //$('#settings_general_mc_api_key_error').addClass('alert-error error');
            }
        );

        function postSelect(id, connectionID, ListName)
        {
            $("#ID").val(id.toString());
            $("#IntegrationID").val(connectionID);
            $("#ListName").val(ListName);
            $("#emChooseListForm").submit();
        }

    </script>




</body>
</html>

虽然链接是直接从页面源代码匹配的，但驱动程序无法定位元素，只是超时..

WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, element_href))).click()
Traceback (most recent call last):

  File "<ipython-input-53-7a3495af695d>", line 1, in <module>
    WebDriverWait(driver, 20).until(EC.element_to_be_clickable((By.XPATH, element_href))).click()

  File "c:\python\python37\lib\site-packages\selenium\webdriver\support\wait.py", line 80, in until
    raise TimeoutException(message, screen, stacktrace)

TimeoutException

请容忍我的描述，如果它很差，这是我在stackoverflow上的第一篇文章，谢谢

标签： pythonseleniumselenium-webdriver