第一個(gè)坑：'geckodriver' executable needs to be in PATH

1.如果啟動(dòng)瀏覽器過程中報(bào)如下錯(cuò)誤

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 145, in __init__
self.service.start()
File "D:\test\python3\lib\site-packages\selenium\webdriver\common\service.py", line 81, in start
os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.

2.這個(gè)是因?yàn)樽钚碌膕elenium3.0啟動(dòng)firefox需要geckodriver.exe這個(gè)驅(qū)動(dòng)文件。

3.下載之后，配置到環(huán)境變量path下（可以直接放python根目錄）

第二坑：Expected browser binary location, but unable to find binary in default location

1.如果啟動(dòng)瀏覽器過程中報(bào)如下錯(cuò)誤：

Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__
keep_alive=True)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__
self.start_session(desired_capabilities, browser_profile)

File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_session
response = self.execute(Command.NEW_SESSION, capabilities)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in execute
self.error_handler.check_response(response)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: Expected browser binary location, but unable to find binary in default location,
no 'moz:firefoxOptions.binary' capability provided, and no binary flag set on the command line.

2.這個(gè)是因?yàn)閒irefox.exe這個(gè)文件也需要配置到環(huán)境變量path下。

3.這個(gè)路徑就是安裝完firefox后，找到firefox.exe這個(gè)文件的地址，加到path下。

第三坑：Unsupported Marionette protocol version 2, required 3

1.如果啟動(dòng)瀏覽器過程中出現(xiàn)如下錯(cuò)誤

Traceback (most recent call last):
File "<stdin>", line 1, in <module>

File "D:\test\python3\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 155, in __init__
keep_alive=True)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 92, in __init__
self.start_session(desired_capabilities, browser_profile)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 179, in start_session
response = self.execute(Command.NEW_SESSION, capabilities)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 238, in execute
self.error_handler.check_response(response)
File "D:\test\python3\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 193, in check_response

raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: Unsupported Marionette protocol version 2, required 3

2.這個(gè)錯(cuò)誤原因是firefox版本過低了，最新的selenium3.0版本支持firefox47以上的版本，升級版本就可以了

第四坑：WebDriverException: Message: newSession

1.Traceback (most recent call last):

File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 170, in init
keep_alive=True)
File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 156, in init
self.start_session(capabilities, browser_profile)
File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 245, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\webdriver.py”, line 314, in execute
self.error_handler.check_response(response)
File “D:\test\python3\lib\site-packages\selenium\webdriver\firefox\\errorhandler.py”, line 242, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: newSession

2.下載最新的geckodriver.exe 然后把它放到python的安裝目錄下

以上就是本文的全部內(nèi)容，希望對大家的學(xué)習(xí)有所幫助，也希望大家多多支持腳本之家。