Re: Hello from a super noob!
Hello,
you can refactor your code a little bit and learn more about exceptions:
def get_numbers():
first = None
second = None
while True:
try:
if first is None:
first = int(input('Enter your first number: '))
if second is None:
second = int(input('Enter your second number: '))
except ValueError:
print('You have to enter a number')
continue
else:
return first, second
Am 08.06.2017 um 01:56 schrieb CB:
> Hi everyone,
> I am taking a python class and I'm stuck in an exercise.
>
> what am i doing wrong? Can anyone try to run it? Thanks so much!
>
> #Description:Input validation and while loops.
>
>
> import random
> def main(): #main function need in all programs for automated testing
>
>
> #your program goes here
>
> print()
>
>
>
>
> print("This program will help us practice input validation and while
> loops.")
> print("The user will be asked to enter two numbers which will both be
> validated. ")
> print("The sum of the numbers will then be displayed in a complex print
> statement ")
> print("and the user will be asked if they would like to run the program
> again."
> )
> print()
> print()
>
> while True:
> FirstNumber = input ("Please enter the first number: ")
> if FirstNumber.isdigit ():
> FirstNumber = int(FirstNumber)
> break
> else:
> print ("Invalid response. Please enter a whole number. " )
>
> while True:
>
> SecondNumber = input ("Please enter the second number: " )
> if SecondNumber.isdigit():
> SecondNumber= int(SecondNumber)
>
> break
> else:
> print("Invalid response. Please enter a whole number." )
>
> print()
> print (str(FirstNumber) + " + " + str(SecondNumber)+ " = " +
> str(FirstNumber + SecondNumber))
> print()
>
> while True:
>
> ans= input('Would you like to run the program again (Y/N) : ')
> if ans== 'Y' or ans== 'N':
> break
>
> else:
> print(" lnvalid response. Please answer with 'Y' or 'N' ")
>
> if ans== 'N':
> break
>
>
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Re: Hello from a super noob!
On 08/06/17 00:56, CB wrote: Hi everyone, I am taking a python class and I'm stuck in an exercise. what am i doing wrong? Can anyone try to run it? Thanks so much! It helps if you describe what is going wrong. Not just us, either; "Teddy Bear Debugging", explaining to a colleague (or indeed a soft toy) why your code cannot possibly be wrong, is an excellent way of finding bugs. The number of times I've stopped in the middle of an explanation to fix the now glaringly obvious mistake... Try it and see. Here's a hint: be very aware of what your indentation means. -- Rhodri James *-* Kynesim Ltd -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello from a super noob!
On Thu, 8 Jun 2017 09:56 am, CB wrote: > Can anyone try to run it? Yes, you can. Doctor to patient: "So, what seems to be the problem?" Patient: "You're the doctor, you tell me." -- Steve “Cheer up,” they said, “things could be worse.” So I cheered up, and sure enough, things got worse. -- https://mail.python.org/mailman/listinfo/python-list
Re: Hello from a super noob!
On 2017-06-08 00:56, CB wrote:
Hi everyone,
I am taking a python class and I'm stuck in an exercise.
what am i doing wrong? Can anyone try to run it? Thanks so much!
#Description:Input validation and while loops.
import random
def main(): #main function need in all programs for automated testing
#your program goes here
print()
print("This program will help us practice input validation and while loops.")
print("The user will be asked to enter two numbers which will both be
validated. ")
print("The sum of the numbers will then be displayed in a complex print
statement ")
print("and the user will be asked if they would like to run the program
again."
)
print()
print()
while True:
FirstNumber = input ("Please enter the first number: ")
if FirstNumber.isdigit ():
FirstNumber = int(FirstNumber)
break
else:
print ("Invalid response. Please enter a whole number. " )
while True:
SecondNumber = input ("Please enter the second number: " )
if SecondNumber.isdigit():
SecondNumber= int(SecondNumber)
break
else:
print("Invalid response. Please enter a whole number." )
print()
print (str(FirstNumber) + " + " + str(SecondNumber)+ " = " +
str(FirstNumber + SecondNumber))
print()
while True:
ans= input('Would you like to run the program again (Y/N) : ')
if ans== 'Y' or ans== 'N':
break
else:
print(" lnvalid response. Please answer with 'Y' or 'N' ")
if ans== 'N':
break
You haven't said what the problem is.
It looks OK, apart from the indentation, which is important to get right
in Python.
Also, you've defined a function 'main' but not called it, and imported a
module but not used it, which is pointless.
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