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@rsignell
Description
I'm on a secure NATO system with a custom SSL cert and when I try to load some xarray tutorial data:
import xarray as xr ds = xr.tutorial.open_dataset("air_temperature").isel(time=slice(0, 100))
I get back:
--------------------------------------------------------------------------- SSLCertVerificationError Traceback (most recent call last) File ~/miniforge3/envs/pangeo/lib/python3.10/site-packages/urllib3/connectionpool.py:703, in HTTPConnectionPool.urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw) 702 # Make the request on the httplib connection object. --> 703 httplib_response = self._make_request( 704 conn,
With other packages I can set an environment variable to point to the custom .pem, like:
os.environ['AWS_CA_BUNDLE']='/home/shared/PA-RootCA-Cert-2023-Pub.pem' # s3
os.environ['REQUESTS_CA_BUNDLE']='/home/shared/PA-RootCA-Cert-2023-Pub.pem' # requests
but there doesn't seem to be such an environment variable for urllib3?
I see this info in the urlib3 docs about custom SSL, but I'm not sure how I could pass this custom context to the xr.tutorial.open_dataset command.
Does anyone know how to overcome this issue?