Testing if Python string variable holds number (int,float) or non-numeric str?

Question

If a Python string variable has had either an integer, floating point number or a non-numeric string placed in it, is there a way to easily test the \"type\" of that value?<

Answer 1

use .isdigit():

In [14]: a = '145'

In [15]: b = 'foo'

In [16]: a.isdigit()
Out[16]: True

In [17]: b.isdigit()
Out[17]: False

In [18]: