test if variable is Numeric?

[buran]

the common way is

var = 5
print(isinstance(var, int))

note that you can supply multiple types as second argument

var = 5
var2 = 1.2
var3 = 'some text'
print(isinstance(var, (int, float)))
print(isinstance(var2, (int, float)))
print(isinstance(var3, (int, float)))

read https://docs.quantifiedcode.com/python-a...tance.html or https://stereochro.me/ideas/type-vs-isinstance why isinstance() is preferable than type()
At the end of the link there is also link to other resources why checking for type is against python principles/design patterns. You probably have heard that it's easier to ask for forgiveness than permission and "If it looks like a duck, swims like a duck, and quacks like a duck, then it probably is a duck" (https://docs.python.org/3.6/glossary.html , check EAFP and duck-typing) https://en.wikipedia.org/wiki/Duck_typing