On this page
numpy.chararray.isnumeric
method
- chararray.isnumeric(self)[source]
- 
    For each element in self, return True if there are only numeric characters in the element.See also 
© 2005–2020 NumPy Developers
Licensed under the 3-clause BSD License.
 https://numpy.org/doc/1.19/reference/generated/numpy.chararray.isnumeric.html