python : no module named selenium

Question

在网上搜索了几个小时后，我还没有找到问题的答案。我正在使用 Python 3.6，但无法导入 Selenium 。我总是收到消息“没有名为‘selenium’的模块” 我尝试了一切，我首先从这个网站下载了 selenium https://pypi.python.org/pypi/selenium/3.6.0 .

然后我尝试了 python -m pip install -U selenium 也没有成功。我尝试了人们所说的其他一些方法，但它们也没有用。 我正在使用 Windows 10。 有帮助吗？

Answer 1

正如您提到的，您使用 Python 3.6 遵循以下步骤:

• 打开 命令行界面 (CLI) 并发出命令 python 检查 Python 是否正确安装:

  C:\Users\username>python
  Python 3.6.1 (v3.6.1:69c0db5, Jan 16 2018, 17:54:52) [MSC v.1900 32 bit (Intel)]
   on win32
  Type "help", "copyright", "credits" or "license" for more information.
  >>>
  

• 确保 pip 正常工作:

  C:\Users\username>pip
  
  Usage:
    pip <command> [options]
  
  Commands:
    install                     Install packages.
    download                    Download packages.
    uninstall                   Uninstall packages.
    freeze                      Output installed packages in requirements format.
    list                        List installed packages.
    show                        Show information about installed packages.
    check                       Verify installed packages have compatible dependencies.
    search                      Search PyPI for packages.
    wheel                       Build wheels from your requirements.
    hash                        Compute hashes of package archives.
    completion                  A helper command used for command completion.
    help                        Show help for commands.
  
  General Options:
    -h, --help                  Show help.
    --isolated                  Run pip in an isolated mode, ignoring environment variables and user configuration.
    -v, --verbose               Give more output. Option is additive, and can be used up to 3 times.
    -V, --version               Show version and exit.
    -q, --quiet                 Give less output. Option is additive, and can be used up to 3 times (corresponding to WARNING, ERROR, and CRITICAL logging levels).
    --log <path>                Path to a verbose appending log.
    --proxy <proxy>             Specify a proxy in the form [user:passwd@]proxy.server:port.
    --retries <retries>         Maximum number of retries each connection should attempt (default 5 times).
    --timeout <sec>             Set the socket timeout (default 15 seconds).
    --exists-action <action>    Default action when a path already exists: (s)witch, (i)gnore, (w)ipe, (b)ackup, (a)bort.
    --trusted-host <hostname>   Mark this host as trusted, even though it does not have valid or any HTTPS.
    --cert <path>               Path to alternate CA bundle.
    --client-cert <path>        Path to SSL client certificate, a single file containing the private key and the certificate in PEM format.
    --cache-dir <dir>           Store the cache data in <dir>.
    --no-cache-dir              Disable the cache.
    --disable-pip-version-check
                                Don't periodically check PyPI to determine
                                whether a new version of pip is available for
                        download. Implied with --no-index.
  

• 通过pip安装最新的selenium:

  C:\Users\username>pip install -U selenium
  Collecting selenium
    Downloading selenium-3.8.1-py2.py3-none-any.whl (931kB)
      100% |¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦¦| 942kB 322kB/s
  Installing collected packages: selenium
  Successfully installed selenium-3.8.1
  

• 确认 Selenium 已安装:

  C:\Users\username>pip freeze
  selenium==3.8.1 
  

• 打开IDE(如Eclipse、PyCharm)，编写一个简单的程序如下:

  from selenium import webdriver
  
  driver = webdriver.Firefox(executable_path="C:\\path\\to\\geckodriver.exe")
  driver.get('https://stackoverflow.com')
  

• 执行启动 Firefox Quantum 浏览器的程序和 url https://stackoverflow.com 将被访问。

---

Python 下载位置(Windows):

Python(适用于 Windows)可以从以下位置下载:

https://www.python.org/downloads/