我正在用Python文本阅读Sweigart的《自动化无聊的东西》。我正在使用IDLE，并且已经安装了Selenium模块和Firefox浏览器。
每当我试图运行webdriver函数，我得到这个:
from selenium import webdriver
browser = webdriver.Firefox()
例外:
Exception ignored in: <bound method Service.__del__ of <selenium.webdriver.firefox.service.Service object at 0x00000249C0DA1080>>
Traceback (most recent call last):
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\common\service.py", line 163, in __del__
self.stop()
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\common\service.py", line 135, in stop
if self.process is None:
AttributeError: 'Service' object has no attribute 'process'
Exception ignored in: <bound method Service.__del__ of <selenium.webdriver.firefox.service.Service object at 0x00000249C0E08128>>
Traceback (most recent call last):
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\common\service.py", line 163, in __del__
self.stop()
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\common\service.py", line 135, in stop
if self.process is None:
AttributeError: 'Service' object has no attribute 'process'
Traceback (most recent call last):
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\common\service.py", line 64, in start
stdout=self.log_file, stderr=self.log_file)
File "C:\Python\Python35\lib\subprocess.py", line 947, in __init__
restore_signals, start_new_session)
File "C:\Python\Python35\lib\subprocess.py", line 1224, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
在处理上述异常时，发生了另一个异常:
Traceback (most recent call last):
File "<pyshell#11>", line 1, in <module>
browser = webdriver.Firefox()
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\firefox\webdriver.py", line 135, in __init__
self.service.start()
File "C:\Python\Python35\lib\site-packages\selenium\webdriver\common\service.py", line 71, in start
os.path.basename(self.path), self.start_error_message)
selenium.common.exceptions.WebDriverException: Message: 'geckodriver' executable needs to be in PATH.
我想我需要为geckodriver设置路径，但我不确定如何，所以我该如何做到这一点?
