try-catch in test.py causes uncomprehensible pdb stack running with pytest.

[rainwoodman]

test.py uses try-catch-finally to capture temporary files.

However if we try to debug a test failure inside such block, pdb cannot fall into the local scope of the exception, but would rather only jump to the scope of the finally clause.

I wonder if using a context manager may be work around this. Or perhaps moving clean-up outside of the finally clause is still acceptable, since test failure is already unexpected, and when failure occurs one is likely interested to inspect the temporary file any ways.

[beckermr]

We should probably just move to pytest but that is a lot of work.

[rainwoodman]

My impression was pytest also has the finally clause exception issue.

Getting rid of the try-catch is less work and results easier test cases on the other hand.