Upgrade to release 0.4.17:
- Provide support for PEP 567 ContextVars
- Provide a feature flag indicating whether we handle context vars
- Switch contextvars when switching greenlets
Signed-off-by: Leon Anavi <leon.anavi@konsulko.com>
Acked-by: Trevor Gamblin <trevor.gamblin@windriver.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
