我有以下标题，我试图从中获取多个文本。我只能获取菜单Mobile App Guide，Quick Links，SDKs，Protocols & Plugins和FAQ的文字。但是我无法获得子菜单文本。
我使用elem.find_elements_by_css_selector("*")和elem.find_elements_by_xpath(".//*")创建了header标记下所有子元素的列表。
我认为这是因为我只是迭代到if len(child.text) > 0父元素的最近孩子。任何人都知道我如何遍历标题标记的所有子元素（包括子菜单）？
from behave import given, when, then
from selenium.webdriver.common.keys import Keys
# @given('the user is on documentation home page')
# def on_home_page(context):
# context.driver.get("URL removed")
@when('the header is displayed')
def header_display(context):
assert context.driver.find_element_by_xpath('/html/body/header')
@then('the header should have {menu}')
def header_menu(context, menu):
elem = context.driver.find_element_by_tag_name("header")
all_children_by_css = elem.find_elements_by_css_selector("*")
all_children_by_xpath = elem.find_elements_by_xpath(".//*")
children = []
for child in all_children_by_xpath:
# print(len(child.text))
if len(child.text) > 0:
# print(child.text)
if child.text not in children:
children.append(child.text)
print(children)
if menu in children:
assert True
else:
assert False
页眉的源代码
<header class="header docs-header">
<nav class="top-bar" data-topbar role="navigation">
<ul class="title-area">
<li class="name">
<h1>
<a title="LaunchKey Home Page" class="home-link" href="https://www.iovation.com/launchkey">
<img alt="LaunchKey Logo" class="header-logo" src="_static/images/logo-name.svg">
</a>
</h1>
</li>
<li class="toggle-topbar menu-icon">
<a href="#" title="menu-toggle">
<span> </span>
</a>
</li>
</ul>
<section class="top-bar-section">
<ul class="left">
<li class="has-dropdown">
<a href="#">Mobile App Guide
<i class="zmdi zmdi-chevron-down margin-left-qtr"></i>
</a>
<ul class="dropdown">
<li class="blue-hover">
<a href="user/mobile-app-guide/index.html">Android</a>
</li>
<li class="blue-hover">
<a href="user/mobile-app-guide/index.html">iOS</a>
</li>
</ul>
</li>
<li class="has-dropdown">
<a href="#">Quick Links
<i class="zmdi zmdi-chevron-down margin-left-qtr"></i>
</a>
<ul class="dropdown">
<li class="blue-hover">
<a href="common/getting-started-guide.html">Getting Started Guide</a>
</li>
<li class="blue-hover">
<a href="developer/api/index.html">API Reference</a>
</li>
<li class="blue-hover">
<a href="developer/encryption/index.html">Encryption</a>
</li>
<li class="blue-hover">
<a href="glossary.html">Glossary of Terms</a>
</li>
<li class="blue-hover">
<a href="hacker/index.html">Hackers</a>
</li>
<li class="blue-hover">
<a href="common/resources/index.html">Designers</a>
</li>
<li class="blue-hover">
<a href="https://launchkey.com/support" target="_blank">Support</a>
</li>
</ul>
</li>
<li class="has-dropdown">
<a href="#">SDKs
<i class="zmdi zmdi-chevron-down margin-left-qtr"></i>
</a>
<ul class="dropdown">
<li class="blue-hover">
<a href="developer/web-desktop/index.html">Desktop/Web MFA</a>
</li>
<li class="blue-hover">
<a href="developer/mobile/index.html">Native Mobile MFA</a>
</li>
<li class="blue-hover">
<a href="developer/white-label/index.html">Authenticator</a>
</li>
</ul>
</li>
<li class="has-dropdown">
<a href="#">Protocols & Plugins
<i class="zmdi zmdi-chevron-down margin-left-qtr"></i>
</a>
<ul class="dropdown">
<li class="blue-hover">
<a href="developer/cms/word-press/index.html">WordPress</a>
</li>
<li class="blue-hover">
<a href="developer/cms/drupal/index.html">Drupal</a>
</li>
<li class="blue-hover">
<a href="integrator/protocol/oauth/index.html">OAuth</a>
</li>
<li class="blue-hover">
<a href="integrator/protocol/openid/index.html">OpenID</a>
</li>
<li class="blue-hover">
<a href="integrator/module/pam/index.html">SSH PAM</a>
</li>
</ul>
</li>
<li class="blue-hover">
<a href="faq/index.html">FAQ</a>
</li>
</ul>
<ul class="right">
<li>
<div role="search">
<form id="rtd-search-form" class="wy-form" action="search.html" method="get">
<input type="text" name="q" placeholder="Search docs" tabindex="1" />
<input type="hidden" name="check_keywords" value="yes" />
<input type="hidden" name="area" value="default" />
</form>
</div>
</li>
</ul>
</section>
</nav>
</header>