Test not getting graded

my final programming assignment is showing following error
“There was a problem compiling the code from your notebook. Details:
unsupported format string passed to NoneType.format

Even though my answers match the expected output

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There can be several reasons this happens.

  • Maybe you have an obsolete copy of the notebook ipynb or .py utility file.

  • Maybe you did not complete the entire assignment, and left some “None” code in the notebook.

  • Maybe you renamed your notebook, and the grader is working on the copy with the original file name.

Do any of these sound possible in your situation?

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No none of these is the case

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