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'webdriver' executable needs to be in PATH

I'm trying to use selenium and I keep getting the error:
Traceback (most recent call last):
File "C:\Users\jensa\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\common\service.py", line 76, in start
stdin=PIPE)
File "C:\Users\jensa\AppData\Local\Programs\Python\Python37-32\lib\subprocess.py", line 775, in __init__
restore_signals, start_new_session)
File "C:\Users\jensa\AppData\Local\Programs\Python\Python37-32\lib\subprocess.py", line 1178, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "seleniumtest.py", line 5, in <module>
driver = webdriver.Chrome(executable_path=path)
File "C:\Users\jensa\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 73, in __init__
self.service.start()
File "C:\Users\jensa\AppData\Local\Programs\Python\Python37-32\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: 'webdriver' executable needs to be in PATH. Please see https://sites.google.com/a/chromium.org/chromedriver/home
I'm really confused as nothing online is helping me. The folder to the chromedriver IS in the PATH.
I've tried having the python file in the same folder as the driver and in a different folder.
I've tried specifying the location via executable_path. I've tried including and not including '.exe' in the executable_path. Nothing works. Can someone please help me get this working. Here's my code:
from selenium import webdriver
chromedriver = r"\C:\bin\chromedriver"
driver = webdriver.Chrome(chromedriver)
driver.get("http://stackoverflow.com")

You need to provide chrome driver binary path , please download latest chrome driver which support to your browser version :
you can download Latest Chrome driver from here
from selenium import webdriver
driver = webdriver.Chrome(executable_path=r"C:\bin\chromedriver.exe")
driver.maximize_window()
driver.get("url")

If it is in the PATH then no need for referencing in your code.
Simply write your code the following
from selenium import webdriver
driver = webdriver.Chrome()
driver.get("http://stackoverflow.com")

selenium.common.exceptions.WebDriverException: Message: invalid argument: unrecognized capability: chromeOptions with Selenium and ChromeDriver 77.0

This is my code
from selenium import webdriver
driver = webdriver.Chrome('C:\chromedriver_win32\chromedriver')
driver.get('http://google.com')
And this is an error message.
Traceback (most recent call last):
File "D:/project/Python/TEST_selenium/chromedriver_test.py", line 16, in <module>
driver = webdriver.Chrome(executable_path="C:\chromedriver_win32\chromedriver",chrome_options=chrome_options)
File "C:\Users\USER\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 69, in __init__
desired_capabilities=desired_capabilities)
File "C:\Users\USER\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 98, in __init__
self.start_session(desired_capabilities, browser_profile)
File "C:\Users\USER\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 188, in start_session
response = self.execute(Command.NEW_SESSION, parameters)
File "C:\Users\USER\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver\remote\webdriver.py", line 256, in execute
self.error_handler.check_response(response)
File "C:\Users\USER\AppData\Local\Programs\Python\Python36-32\lib\site-packages\selenium\webdriver\remote\errorhandler.py", line 194, in check_response
raise exception_class(message, screen, stacktrace)
selenium.common.exceptions.WebDriverException: Message: invalid argument: unrecognized capability: chromeOptions
I can't figure out why an error occurs in this simple code.
This code worked a month ago. But it doesn't work now.
I've updated both chrome and chrome drivers but that doesn't fix the problem.
My chrome and chrome driver version is 77.

Welcome to SO!
From your question, I would guess that your selenium version is out of date. I believe that going to Chrome driver 77 updated the launch behaviour.
Try pip install -U selenium and see if that resolves your issue.

Try adding your ChromeDriver.exe to the folder where you have the project or try only driver = webdriver.Chrome()

This error message...
selenium.common.exceptions.WebDriverException: Message: invalid argument: unrecognized capability: chromeOptions
...implies that the ChromeDriver was unable to initiate/spawn a new WebBrowser i.e. Chrome Browser session due to unrecognized chromeOptions.
You need to take care of a couple of things as follows:
If you intent to pass the absolute path of the ChromeDriver, you have to pass the Key executable_path along with the Value referring to the absolute path of the ChromeDriver.
You can find a detailed discussion in WebDriverException: Message: 'chromedriver' executable needs to be in PATH while setting UserAgent through Selenium Chromedriver Phyton
As you are on windows system, you need to specify the absolute path of the ChromeDriver binary through either of the following options :
Double back slashes i.e. (\\)
Single back slash i.e (\) along with the raw (r) switch.
Binary extension i.e. (.exe)
You can find a detailed discussion in Error Message: 'chromedriver' executable needs to be PATH
Your working code will be:
from selenium import webdriver
driver = webdriver.Chrome(executable_path=r'C:\chromedriver_win32\chromedriver.exe')
driver.get('http://google.com')

selenium script doesn't run in python

Tried executing
from selenium import webdriver
browser=webdriver.Chrome()
browser.get('http://www.google.com')
but doesn't execute and throws error
=RESTART: C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\drive.py =
Traceback (most recent call last):
File "C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\common\service.py", line 76, in start
stdin=PIPE)
File "C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\lib\subprocess.py", line 775, in __init__
restore_signals, start_new_session)
File "C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\lib\subprocess.py", line 1178, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\drive.py", line 4, in <module>
browser=webdriver.Chrome()
File "C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\lib\site-packages\selenium\webdriver\chrome\webdriver.py", line 73, in __init__
self.service.start()
File "C:\Users\Phani\AppData\Local\Programs\Python\Python37-32\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
properly installed selenium using pip install
Please Help!!

This isn't working because you haven't provide path of the chrome driver.WebDriver doesn't know where is the chromedriver path.
driver = webdriver.Chrome("path of the chrome driver Chromedriver.exe")
for example:
from selenium import webdriver
driver = webdriver.Chrome("d:/chromedriver/Chromedriver.exe")
driver.get("https://www.google.com")

You can try Firefox for this purpose:
First Download Geckodriver from here: https://github.com/mozilla/geckodriver/releases/tag/v0.24.0
from selenium import webdriver
fox = webdriver.Firefox(executable_path='/path/to/downloaded/gecko/driver')
fox.get("https://www.google.com")
Same could be done with google chrome :
You can download chrome driver from here:
https://sites.google.com/a/chromium.org/chromedriver/home
No need to setup PATH variable.

I have just fixed the issue. You need to download an updated version of Google Chrome. For instance, my old version was 96 but now it is 101. That is it.

OSError: [Errno 8] Exec format error with GeckoDriver and Selenium on MacOS

I am using firefox gecko driver to make a bot, I keep getting error messages with my bot and I have found that the source of the message is the:
from selenium import webdriver
browser= webdriver.Firefox()
lines.
I have added every file mentioned in the error message to path including gecko driver, firefox, and the other smaller documents. I am at a complete loss
Here is the error message:
Traceback (most recent call last):
File "/usr/local/bin/fuckobot1.py", line 3, in <module>
browser= webdriver.Firefox()
File "/Users/'myname'/Library/Python/2.7/lib/python/site-packages/selenium/webdriver/firefox/webdriver.py", line 164, in __init__
self.service.start()
File "/Users/'myname'/Library/Python/2.7/lib/python/site-packages/selenium/webdriver/common/service.py", line 76, in start
stdin=PIPE)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 1335, in _execute_child
raise child_exception
OSError: [Errno 8] Exec format error

This error message...
OSError: [Errno 8] Exec format error
...implies that the GeckoDriver binary which was invoked was not in proper format.
Your main issue is the incompatibility of the GeckoDriver binary format with respect to the underlying Operating System.
As you are on MacOS you need to download geckodriver-v0.23.0-macos.tar.gz from mozilla/geckodriver, untar/unzip it and provide the absolute path of the GeckoDriver through the argument executable_path as follows:
from selenium import webdriver
browser= webdriver.Firefox(executable_path='/path/to/geckodriver')

This may be answer to this issue,
when it shows something like, Your Firefox profile cannot be loaded. It may be missing or inaccessible.
Actual problem is, Firefox 48.0 or greater not works with selenium 3.0.0 or greater version.
so please check your versions.
so, to make it work you need to update with recent selenium and respective geckodriver version too that fixes this issue.
then try basic commands,
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
driver = webdriver.Firefox()

Firefox driver can't start for Selenium 3.0.1 with FF49 and Python

i have following Selenium Webdriver script with Python. But i got error:
from selenium import webdriver
from selenium.webdriver.common.desired_capabilities import DesiredCapabilities
caps = DesiredCapabilities.FIREFOX
caps["marionette"] = True
driver = webdriver.Firefox(capabilities=caps)
driver.get("http://www.mahsumakbas.net")
print driver.title
driver.close()
error is:
Traceback (most recent call last): File
"C:\Mahsum\DevelopmentWorkSpace\Eclipse\Java\selenium_proj\src\hello.py",
line 6, in
driver = webdriver.Firefox(capabilities=caps) File "C:\Python27\lib\site-packages\selenium\webdriver\firefox\webdriver.py",
line 135, in init
self.service.start() File "C:\Python27\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.
Exception AttributeError: "'Service' object has no attribute
'process'" in >
ignored
Selenium Webdriver version is: 3.0.1
Firefox: 49.0.2
geckodriver: v0.11.1-win64
i added geckodriver path to Windows PATH variable.
where is the problem?

You can place the 'geckodriver' .exe in the base path of Python and it will work.
Alternatively, you have to declare the path to geckodriver when initializing if you prefer to have a clean Python folder. Either do it every time you run your script or by PATH as you says you've done. As Naveen suggests, a reboot is necessary before a PATH is correctly saved. You could also try to run this in the Windows command line:
setx path "%path%;c:\path\to\geckodriver-folder"

final code is like follow and working:
binary = FirefoxBinary("C:\\Program Files (x86)\\Mozilla Firefox\\firefox.exe")
driver = webdriver.Firefox(firefox_binary=binary)
set path of geckodriver.exe without file name(only folder that it is placed) to PATH vairable.
this time, i have another problem:
driver.close() doesn't close firefox.
when change as driver.quit() it closes but following line is appear on console:
'NoneType' object has no attribute 'path'
there is not any indicator to show it is warning or error. Just line itself.

Try to add firefox profile
profile = webdriver.FirefoxProfile()
webdriver.Firefox(capabilities=caps,firefox_profile=profile)

from selenium import webdriver
# To Run on FireFox Browser
self.driver = webdriver.Firefox(executable_path="C:/Drivers/geckodriver.exe")
driver.get("http://www.mahsumakbas.net")
print(driver.title)
driver.close()