ecerulm commented on issue #15325:
URL: https://github.com/apache/airflow/issues/15325#issuecomment-817869309
If airflow was Python 3.7+ instead of Python 3.6+ we could change
`airflow/models/xcom.py` so that instead of resolving the XCom backend right
away it would be delayed until first use.
So instead of:
```
XCom = resolve_xcom_backend()
```
```
def __getattr__(name):
if name == "XCom":
xcom = resolve_xcom_backend()
sys.module[__name__].XCom = xcom
return xcom
raise AttributeError(f"module {__name__} has no attribute {name}")
```
I'm going to try to use
```
XCom = lazy_object_proxy.Proxy(resolve_xcom_backend)
```
if it works I'll create a PR
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