Unable to locate latest ChromeDriver version.

[hadi16]

I am getting the following error when I try to install ChromeDriver using the Python REPL on my machine. I am running Python 3.7.6 on macOS Mojave (10.14.6).

Python 3.7.6 (v3.7.6:43364a7ae0, Dec 18 2019, 14:18:50) 
[Clang 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyderman as driver
>>> path = driver.install(browser=driver.chrome)
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyderman/__init__.py", line 46, in install
    data = browser.get_url(version=version, _os=_current_os, _os_bit=_os_bit)
  File "/Library/Frameworks/Python.framework/Versions/3.7/lib/python3.7/site-packages/pyderman/drivers/chrome.py", line 11, in get_url
    raise Exception("Unable to locate latest ChromeDriver version!")
Exception: Unable to locate latest ChromeDriver version!

[shadowmoose]

Hey, when you visit https://chromedriver.storage.googleapis.com/LATEST_RELEASE are you able to see a release version string there?

[hadi16]

Yes, I see the following when I visit this page: 80.0.3987.106

[hadi16]

This function within _open() in downloader.py is raising an Exception (which results in None being returned):

def _open(url):
    # noinspection PyBroadException
    try:
        return urlopen(url, timeout=15)
    except Exception:
        return None

This is surprising, since the URL seems right (and this function just calls a native Python function)...

[hadi16]

Here is the specific exception that is thrown: <urlopen error [SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1076)>

[shadowmoose]

Thanks for digging into this issue's root cause. It's very difficult for me to replicate, because the test cases seem to be working fine across all platforms.

Have you tried the solutions proposed here? This may be a setup-specific bug.

[hadi16]

Yes, this was indeed the issue. It would be very helpful to include this as a debugging FAQ within the readme for the project. Thank you!