Question

using Python:

Write a function named safe input(prompt,type) that works like the Python input function, except that it only accepts the specified type of input. The function takes two arguments:
r prompt: str
r type: int, float, str
The function will keep prompting for input until correct input of the specified type is entered.
The function returns the input. If the input was specified to be a number ( float or int), the value returned will be of the correct type; that is, the function will perform the conversion.
The default for a prompt is the empty string. The default for the type is string.

Answer 1

Ans:

'''

The required python function for implementing the above given requirements of the program is as follows:

'''

# Program:

# Required function
def safe_input(prompt, type_=str):
if(type_ not in (str, int, float)):
raise ValueError("Expected str, int or float.")

while True:
test = input(prompt)
try:
ret = type_(test)
except ValueError:
print("Invalid type, enter again.")
else:
break

return ret

test = safe_input("Enter a string: ")
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter an integer: ",int)
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter a float: ",float)
print ('"{}" is a {}'.format(test,type(test)))   
test = safe_input("Enter a string: ")
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter an integer: ",int)
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter a float: ",float)
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter a string: ")
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter an integer: ", int)
print ('"{}" is a {}'.format(test,type(test)))
test = safe_input("Enter a float: ", float)
print ('"{}" is a {}'.format(test,type(test)))

# OUTPUT OF A SAMPLE RUN:

# PLEASE DO LIKE AND UPVOTE IF THIS WAS HELPFUL!

# THANK YOU SO MUCH IN ADVANCE!