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numpy.core.defchararray.isnumeric
numpy.core.defchararray.isnumeric(a)[source]- 
    
For each element, return True if there are only numeric characters in the element.
Calls
unicode.isnumericelement-wise.Numeric characters include digit characters, and all characters that have the Unicode numeric value property, e.g.
U+2155, VULGAR FRACTION ONE FIFTH.Parameters: - 
           
a : array_like, unicode - 
           
Input array.
 
Returns: - 
           
out : ndarray, bool - 
           
Array of booleans of same shape as
a. 
See also
unicode.isnumeric - 
           
 
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 https://docs.scipy.org/doc/numpy-1.16.1/reference/generated/numpy.core.defchararray.isnumeric.html