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https://abstracthiphop.com/bad-operand-type-for-unary-nonetype/
bad operand type for unary -: 'NoneType' - Abstract Hip Hop
bad operand type for unary -: 'NoneType'bad operand type for unary -: 'NoneType'bad operand type for unary -: 'NoneType'bad operand type for unary -:
abstract hip hop
bad
operand
type
unary