How do I convert an user input only if its a certain variable?-CodePudding

okay so I have the code shown below, where I ask the user for the temperature. they obviously have to anwser in numbers, but I want to put in a joke response for if they don't. how can I convert a variable only if it's of a certain type?

base_temp = input("What is the temperature outside?:" )
if base_temp == str:
    print("ok that is not a real temperature.")
    print("you stupid liar i HATE you.")
else: temp = int(base_temp)

if temp >= 0 and temp <= 30 :
    print("that's nice. Go outside. NOW!")
if temp >= 31 or temp < -10 :
    print("okay you can stay inside.")
    print("you still need to go outside though, stinky.")

CodePudding user response：

You could use the built in isdigit() function which returns true if the given string consists of only digits, so for an ex:

if base_temp.isdigit():
    print("valid temp")
else:
    print("invalid temp")

CodePudding user response：

Use exception handling to do this. modified the code a bit, hope it helps.

it can also handle negative numbers.

base_temp = input("What is the temperature outside?:" )

try:
    temp = int(base_temp)
    if temp >= 0 and temp <= 30 :
        print("that's nice. Go outside. NOW!")
    if temp >= 31 or temp < -10 :
        print("okay you can stay inside.")
        print("you still need to go outside though, stinky.")
        
except ValueError:
    print("ok that is not a real temperature.")
    print("you stupid liar i HATE you.")