TypeError in qlib/examples/workflow_by_code.ipynb

🐛 Bug Description

When I run the analyze graphs section in the workflow_by_code.ipynb in Google colab, I got the following error message. The error came from the line of "from qlib.contrib.report import analysis_model, analysis_position". Everything above that line was running fine. May I know what is the reason for it and how to fix it?

TypeError Traceback (most recent call last)
in ()
----> 1 from qlib.contrib.report import analysis_model, analysis_position
2 from qlib.data import D
3 recorder = R.get_recorder(recorder_id=ba_rid, experiment_name="backtest_analysis")
4 print(recorder)
5 pred_df = recorder.load_object("pred.pkl")

14 frames
/usr/local/lib/python3.7/dist-packages/distributed/config.py in ()
18
19 with open(fn) as f:
---> 20 defaults = yaml.load(f)
21
22 dask.config.update_defaults(defaults)

TypeError: load() missing 1 required positional argument: 'Loader'

To Reproduce

Steps to reproduce the behavior:

1.Load qlib/examples/workflow_by_code.ipynb in Google Colab
2.Run the code from the beginning to the "analyze graphs" section
3.The error will show up when runs the line "from qlib.contrib.report import analysis_model, analysis_position"

Expected Behavior

Screenshot

Environment

Note: User could run cd scripts && python collect_info.py all under project directory to get system information
and paste them here directly.

• Qlib version:
• Python version:
• OS (Windows, Linux, MacOS):
• Commit number (optional, please provide it if you are using the dev version):

Additional Notes