benwatsonnandos opened a new issue #14955:
URL: https://github.com/apache/airflow/issues/14955
**Apache Airflow version**: 2.0.1
**Kubernetes version (if you are using kubernetes)** (use `kubectl
version`): N/A
**Environment**: Ubuntu 20.04, Python 3.9
- **Cloud provider or hardware configuration**: AWS EC2 (single instance)
- **OS** (e.g. from /etc/os-release): Ubuntu 20.04
- **Kernel** (e.g. `uname -a`): 5.4.0-1038-aws #40-Ubuntu SMP Fri Feb 5
23:50:40 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
- **Install tools**:
- **Others**: Python 3.9 is a `venv`.
**What happened**:
I'm upgrading my old Airflow 1.10.5 and Python 2.7 environment to Airflow
2.0.1 and Python 3.9. I have a file `utils.py` in `~/airflow/plugins`
(referenced in `airflow.cfg::plugins_folder` that contains a macro that is used
by multiple DAGs (file contents simplified for brevity):
```python
from airflow.plugins_manager import AirflowPlugin
def ret_one():
return 1
class AirflowPluginsTest(AirflowPlugin):
name = "ret_one"
macros = [ret_one]
```
When restarting Airflow then I can see `ret_one` as a macro in `Admin ->
Plugins` in the UI, but using `from airflow.macros import ret_one` in a DAG or
ipython results in a missing module exception and the macro can't be used. This
worked in Airflow 1.10.5.
**What you expected to happen**:
The macro should be found and should be available to DAGs.
**How to reproduce it**:
Run Airflow 2.0.1 on Python 3.9. Create a custom macro (like the above), and
try to import it in a DAG/ipython.
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