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Literal neg is missing support for decimals #2962

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WhiteGobo opened this issue Oct 30, 2024 · 0 comments

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WhiteGobo commented Oct 30, 2024

Using __neg__ on Literals with XSD.decimal throws a TypeError
Any reason not to use duck typing instead of typechecking?

rdflib/rdflib/term.py

Lines 1011 to 1014 in d119ebe

    
           if isinstance(self.value, (int, long_type, float)): 
        
               return Literal(self.value.__neg__()) 
        
           else: 
        
               raise TypeError(f"Not a number; {self!r}")

from rdflib import *
Literal("2.4", datatype=XSD.decimal).__neg__()

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