Here's a Python function that checks if a variable can be converted to an int. Please cut$-$and$-$paste it into the top of your a $3.$ py file:

def is$\_$int $(n)$ :

$"""$ Returns True of $n$ is an int, and False otherwise.True

$>$ is$\_$int $(\text{'}5\mathrm{.}6\text{'})$

False

$"""$

try:

int $(n)$

return True

except ValueError:

return False

You don't need to worry about try$/$catch$,$ other than to know it's how Python handles errors $($such as not being able to convert a

string to an int$).$

Using is$\_$int, write a function called ask$\_$int$1($prompt$)$ that prints the string prompt on the screen and then reads an int

typed by the user. If the user types an invalid int, then ask$\_$int $1$ prints the prompt and asks again. It keeps asking until the user

enters a valid int.

For example:How old are you? ten

How old are you? $3\mathrm{.}4$

How old are you? $20$

$20$