NumPy
ufunc
numpy.ctypeslib
numpy.fft
numpy.linalg
numpy.matlib
numpy.random
numpy.testing
numpy.testing.overrides
numpy.typing
char.chararray.isdecimal
method
For each element in self, return True if there are only decimal characters in the element.
See also
char.isdecimal
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numpy.char.chararray.isalpha
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numpy.char.chararray.isdigit