s=input("enter an integer:")
try:
i=int(s)
print("valid integer entered:",i)
except ValueError as err:
print(err)
while True:
try:
x=int(input("Please enter a number:"))
break
except ValueError:
print("no valid number,try again")
import math
def main():
print("This program finds the real solution to a quadratic.\n")
try:
a,b,c=eval(input("please enter the coefficients(a,b,c):"))
discRoot=math.sqrt(b*b-4*a*c)
root1=(-b+discRoot)/(2*a)
root2=(-b-discRoot)/(2*a)
print("\nthe solution are:",root1,root2)
except ValueError as excobj:
print(excobj)
if str(excobj)=="math domain error":
print("no real roots")
else:
print("you didn't give me the right numbers")
except NameError:
print("\n you didn't enter the three numbers")
except TypeError:
print("your inputs were not all numbers")
except SyntaxError:
print("you input was not in the correct form")
except:
print("something was wrong")
main()