Python Selenium Geckodriver 应该在 PATH 中

Question

I'm trying to fill a form automatically using Selenium.我正在尝试使用 Selenium 自动填写表单。 Here is the HTML code:这是 HTML 代码：

<!DOCTYPE html>
<html>
<body>

<h2>Text input fields</h2>

<form>
  <label for="fname">First name:</label><br>
  <input type="text" id="fname" name="fname" value="John"><br>
  <label for="lname">Last name:</label><br>
  <input type="text" id="lname" name="lname" value="Doe"><br>
    <label for="cars">Choose a car:</label>
  <select id="cars" name="cars">
    <option value="volvo">Volvo</option>
    <option value="saab">Saab</option>
    <option value="fiat">Fiat</option>
    <option value="audi">Audi</option>
  </select><br>
  <textarea name="message" rows="10" cols="30">The cat was playing in the garden.</textarea>
</form>

Here is the Python/Selenium code: It says the Geckodriver needs to be in PATH.这是 Python/Selenium 代码：它说 Geckodriver 需要在 PATH 中。 Previously when I got this error, I specified the executablepath but that doesn't seem to be working anymore.以前，当我收到此错误时，我指定了可执行路径，但这似乎不再起作用。 What am I doing wrong?我究竟做错了什么？

import selenium
from selenium import webdriver
from selenium.webdriver.common.keys import Keys

driver = webdriver.Firefox(executable_path="C:\Users\Anna\Downloads\geckodriver")
driver.get("example form.html")

#First name
element = driver.find_element_by_name("fname")
element.clear()

element.send_keys("Anna")

#Last name
element = driver.find_element_by_name("lname")
element.clear()

element.send_keys("Zharavina")

#Dropdown list | Car selection
select = Select(driver.find_element_by_name("cars"))
select.deselect_all()
select.select_by_value(volvo)

#Textarea
element = driver.find_element_by_name("message")
element.clear()

element.send_keys("Test message 10013341381")

This is the error I am getting:这是我得到的错误：

Traceback (most recent call last):
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/selenium/webdriver/common/service.py", line 72, in start
    self.process = subprocess.Popen(cmd, env=self.env,
  File "/usr/lib/python3.8/subprocess.py", line 854, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "/usr/lib/python3.8/subprocess.py", line 1702, in _execute_child
    raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'geckodriver.exe'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "main.py", line 7, in <module>
    driver = webdriver.Firefox(executable_path="geckodriver.exe")
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/selenium/webdriver/firefox/webdriver.py", line 164, in __init__
    self.service.start()
  File "/opt/virtualenvs/python3/lib/python3.8/site-packages/selenium/webdriver/common/service.py", line 81, in start
    raise WebDriverException(
selenium.common.exceptions.WebDriverException: Message: 'geckodriver.exe' executable needs to be in PATH.

What am I doing wrong?我究竟做错了什么？

Answer 1

Try replacing the \\ with / in the executable_path .尝试在executable_path中用/替换\\ 。
Replace this:替换这个：

driver = webdriver.Firefox(executable_path="C:\Users\Anna\Downloads\geckodriver")

with:和：

driver = webdriver.Firefox(executable_path="C:/Users/Anna/Downloads/geckodriver")

Or you can move the geckodriver to the same directory where you have saved your source code.或者，您可以将 geckodriver 移动到保存源代码的同一目录中。 Then you will not need to provide the executable path.那么您将不需要提供可执行路径。

driver = webdriver.Firefox() #will also work fine

Answer 2

There are at list two issues with your current code;您当前的代码有两个问题； the easier one - the way you're passing the path to the driver.更简单的 - 您将路径传递给驱动程序的方式。
In Python strings the character \\ is called an escape character, and used to specify special chars (like \\n for a new line).在 Python 字符串中，字符\\称为转义字符，用于指定特殊字符（如\\n换行）。

So if you need to actually use it - like in paths - you need to escape itself;因此，如果您需要实际使用它 - 就像在路径中一样 - 您需要逃避自己； also, the executables in Windows are usually with the extension ".exe", which you have omitted.此外，Windows 中的可执行文件通常带有您已省略的扩展名“.exe”。 Thus a proper argument in that call would be:因此，该调用中的正确参数是：

driver = webdriver.Firefox(executable_path="C:\\Users\\Anna\\Downloads\\geckodriver.exe")

You can also use Python's raw strings , not to escape the \\ character:您还可以使用 Python 的原始字符串，而不是转义\\字符：

driver = webdriver.Firefox(executable_path=r"C:\Users\Anna\Downloads\geckodriver.exe")

driver.get("example form.html") driver.get("示例表单.html")

Now with the bigger problem, which resolution is totally within your hands - by the exception stack trace it's obvious you are running the script in some Linux OS environment.现在有了更大的问题，哪个解决方案完全掌握在您的手中 - 通过异常堆栈跟踪，很明显您正在某些 Linux 操作系统环境中运行脚本。 In the same time, the geckodriver you are trying to pass is in a Windows drive, and such executable.同时，您尝试传递的 geckodriver 位于 Windows 驱动器中，并且是此类可执行文件。
You have to change one of the two - either run it in Windows, OR pass a path to a Linux geckodriver executable.您必须更改两者之一 - 要么在 Windows 中运行它，要么将路径传递给 Linux geckodriver 可执行文件。

Python Selenium Geckodriver 应该在 PATH 中

问题描述

2 个解决方案

解决方案1
0 2020-08-29 08:40:01

解决方案2
0 2020-08-29 10:56:52

Python Selenium Geckodriver 应该在 PATH 中

问题描述

2 个解决方案

解决方案1 0 2020-08-29 08:40:01

解决方案2 0 2020-08-29 10:56:52

解决方案1
0 2020-08-29 08:40:01

解决方案2
0 2020-08-29 10:56:52