PDFContents - ImportError: attempted relative import with no known parent package

[bluenostromo]

Code does not function

~/Downloads/Robinhood-1099-Parser-1.0.1/Robinhood-1099-Parser-1.0.1/rh_1099
$ python main.py --pdf tax.pdf --check
Traceback (most recent call last):
File "C:\Users\Dylan\Downloads\Robinhood-1099-Parser-1.0.1\Robinhood-1099-Parser-1.0.1\rh_1099\main.py", line 5, in
from .pdf_contents import PDFContents
ImportError: attempted relative import with no known parent package

[kevinpark1217]

Did you follow the Windows prerequisite section here?