Question

Step by step in python

Write a program that will keep asking for a user input (until a blank line is entered) and will inform me whether what I entered was a valid number or not (without crashing).

• The program should use at least one try/except loop
• The program should include at least two custom written functions (a main() function can count as one of the two)

Answer 1

Answer:

here is the python code as per your requirement

Raw code;

#function named check validity which takes no arguments

def checkValidity():

#infinite loop

while(1):

#get input from user

val=input("Enter value to check valid or not: ")

#if user entered newline

if val=='':

#break the loop and terminate

break

#else

else:

#try

try:

#convert the value to float

val=float(val)

#if it can be converted then its valid number

print("valid number")

#exception

except:

#print it as non valid

print("not valid number")

#continue to iterate the loop

continue

#main method

def main():

#call the above function in main

checkValidity()

#calling main

main()

Editor:

output:

Hope this helps you! If you still have any doubts or queries please feel free to comment in the comment section.

"Please refer to the screenshot of the code to understand the indentation of the code".

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