strings and ints consistency - isinstance

[Sayth Renshaw]

Hi

Trying to clarify why ints and strings arent treated the same.

You can get a valuerror from trying to cast a non-int to an int as in int(3.0) however you cannot do a non string with str(a).

Which means that you likely should use try and except to test if a user enters a non-int with valuerror. 
However as you can't str () and get a valuerror you use conditional logic with strings.

Therefore to try and keep with pythons only one obvious way of doing things should i prefer conditional logic for all using isinstance?

That way regardless of input type my code flows the same and more explicitly states the intended type.
Sayth