Selenium using Python in 2019 on mac - python-3.x

Question

I'm a non-programmer trying to use Automate the Boring Stuff with Python to do exactly that. I watched all the videos and thought I was ready, but as I tried to get going I'm stuck on square zero.
I'm on a Mac OSx Mojave Version 10.14.2
Successfully installed Python 3.7.2
I'm trying to follow this chapter: http://automatetheboringstuff.com/chapter11/
Successfully installed Selenium because:
import selenium
does not give an error.
but when I run this:
from selenium import webdriver
browser = webdriver.Firefox()
I get this error:
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/common/service.py", line 76, in start
stdin=PIPE)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 775, in __init__
restore_signals, start_new_session)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 1522, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'your\\path\\geckodriver.exe': 'your\\path\\geckodriver.exe'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<pyshell#3>", line 1, in <module>
driver = webdriver.Firefox(executable_path=r'your\path\geckodriver.exe')
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/firefox/webdriver.py", line 164, in __init__
self.service.start()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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: 'your\path\geckodriver.exe' executable needs to be in PATH.
>>> driver = webdriver.Firefox(executable_path=r'your\path\geckodriver.exe')
Traceback (most recent call last):
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/common/service.py", line 76, in start
stdin=PIPE)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 775, in __init__
restore_signals, start_new_session)
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/subprocess.py", line 1522, in _execute_child
raise child_exception_type(errno_num, err_msg, err_filename)
FileNotFoundError: [Errno 2] No such file or directory: 'your\\path\\geckodriver.exe': 'your\\path\\geckodriver.exe'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "<pyshell#4>", line 1, in <module>
driver = webdriver.Firefox(executable_path=r'your\path\geckodriver.exe')
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/selenium/webdriver/firefox/webdriver.py", line 164, in __init__
self.service.start()
File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/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: 'your\path\geckodriver.exe' executable needs to be in PATH.
I've tried everything in this: Selenium using Python - Geckodriver executable needs to be in PATH and I don't think it works anymore.
I've installed geckodriver and tried appending it to PATH but nothing seems to work. geckodriver is installed in /usr/local/bin/ and I've appended it to path by running export PATH=$PATH:/path/to/geckodriver and export PATH=$PATH:/usr/local/bin/geckodriver but I keep getting the same error
I've tried having both the newest Firefox and Firefox v46 installed because I read somewhere that it doesn't work after that version.
Any help is much appreciated.

Answer 1

I suggest to install with pip
pip install geckodriver-autoinstaller
and then add this code
import geckodriver_autoinstaller
# Check if the current version of geckodriver exists
# and if it doesn't exist, download it automatically,
# then add geckodriver to path
geckodriver_autoinstaller.install()

Answer 2

Set your executable_path
from selenium import webdriver
webdriver.Firefox(executable_path=r'path\to\geckdriver\geckodriver.exe')
executable_path –
Full path to override which geckodriver binary to use for Firefox 47.0.1 and greater, which defaults to picking up the binary from the system path.
from documentation
Edit: also works on lower versions firefox
Edit 2:
Perhaps you could verify the executable can be found by python itself.
import os.path
os.path.exists(file_path)