_contextvars.py 321 B

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  1. import sys
  2. def load_contextvar_class():
  3. if sys.version_info >= (3, 7):
  4. from contextvars import ContextVar
  5. elif sys.version_info >= (3, 5, 3):
  6. from aiocontextvars import ContextVar
  7. else:
  8. from contextvars import ContextVar
  9. return ContextVar
  10. ContextVar = load_contextvar_class()