selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable

故障

D:\zz\PycharmProjects\test\venv\Scripts\python.exe D:/zz/PycharmProjects/test/web.py
Traceback (most recent call last):
  File "D:\zz\PycharmProjects\test\venv\lib\site-packages\selenium\webdriver\common\service.py", line 76, in start
    stdin=PIPE)
  File "C:\Python\Python37\lib\subprocess.py", line 756, in __init__
    restore_signals, start_new_session)
  File "C:\Python\Python37\lib\subprocess.py", line 1155, in _execute_child
    startupinfo)
FileNotFoundError: [WinError 2] 系统找不到指定的文件。

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "D:/zz/PycharmProjects/test/web.py", line 2, in <module>
    browser = webdriver.Chrome()#声明浏览器
  File "D:\zz\PycharmProjects\test\venv\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 73, in __init__
    self.service.start()
  File "D:\zz\PycharmProjects\test\venv\lib\site-packages\selenium\webdriver\common\service.py", line 83, in start
    os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'chromedriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home

           

原因

没有chromedriver 或者不匹配

措施

1、右键 帮助-关于chrome 查看版本号

     或者 地址栏输入 chrome://version/ 

2、http://chromedriver.storage.googleapis.com/index.html 选择匹配的版本号，然后选择对应的系统，下载

将chromedriver.exe 放入安装的selenium库下

"D:\zz\PycharmProjects\test\venv\Lib\site-packages\selenium\webdriver\chrome\chromedriver.exe"      

3、

from selenium import webdriver
chrome_driver=r"D:\zz\PycharmProjects\test\venv\Lib\site-packages\selenium\webdriver\chromedriver.exe"
driver=webdriver.Chrome(executable_path=chrome_driver)
           

即可

url = 'https:www.baidu.com'
browser.get(url)#打开浏览器预设网址
print(browser.page_source)#打印网页源代码
browser.close()#关闭浏览器