Is it possible to combine these functions together to create 1 function?

def checkinput():while True:try:name=input("whats your name?")return nameexcept ValueError:print("error!")

Combined with:

def checkage():while True:try:age=input("whats your age?")return ageexcept ValueError:print("error!")

Thanks in advance!

You can refactor the code to create one function that handles both cases, by recognizing the parts that are the same, and parameterizing the other parts.

def check_value(prompt):while True:try:val=input(prompt)return valexcept ValueError:print("error!")

The only difference between the two functions (other than trivial differences like variable names) was the prompt shown by the input function. We make that a parameter to the new unified function, and call it like this:

x = check_input("What's your name?")
y = check_input("What's your age?")

Why you expect input to possibly raise a ValueError is a different question.