Opencage

New error 'SSLError' which is more explicit in case of SSL certificate chain issues
Allow setting a domain name (only used in test suite)
Allow setting sslcontext, for example to ignore SSL certificat errors (for debugging only)
Batch example: Guess if input is coordinate pair, if so then do reverse geocoding
Batch example: Give example of input file format
Batch example: Ship CA root certificates instead of relying on those of the operating system

Batch example: Raise exception when API key fails (quota, missing API key)
Batch example: Raise exception when input file contains an empty line. Better
early than risking errors later during the async geocoding
Batch example: The CSV '1, "street,city"' were parsed as 3 columns, not the
expected 2 columns
Test suite: Switched from Travis-CI to Github Actions
Dependencies: Requests 2.26->2.31, backoff 1.10->2.2.1, because only those say to support Python 3.10

Using requests > 2.26 , pyopenssl no longer a dependency
Allow setting the http protocol to make API requests (less secure)
Batch example: add progress bar, can be switched off
Batch example: add image of output to README
Examples: mark scripts as executable

Add python 3.11, no longer test against python 3.6
Test suite: add pytest-asyncio to enable async tests
Batch example: exception handling caused another exception
Batch example: by default don't request annotations (faster)
Documentation improvements

Better handling of non-JSON error responses from API
Test on Python 3.10

Python 2 no longer supported
New geocode_async and reverse_geocode_async methods
You can now reuse HTTP connections for multiple requests by using a `with` block
Updated examples/batch.py using asyncronous/parallel requests, much faster
Mayor refactor of test suite
Some tests now run against the live API endpoint using test API keys