`gramex.cache.open(..., rel=True)` does not work in a Jupyter Notebook

[sanand0]

The path of the file that executes the code is not the path of the Notebook, at least on Windows.

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FileNotFoundError                         Traceback (most recent call last)
~\AppData\Local\Temp\ipykernel_12512\936185542.py in <module>
----> 1 skills = gramex.cache.open('skills.xlsx', rel=True)