# 1. Ask the user to enter the number of temperature readings to conv...

## Question

1. Ask the user to enter the number of temperature readings to convert. Make sure the entered value is a number. You must use exception handling (try/catch) to make sure a valid number is entered. For example, a100.8 is an invalid entry. The input such as abc will also be invalid. Make sure to ask the user for a valid input. You must use a loop to validate the entry.
2. Once you have a correct number of items, allow the user to enter a series of temperature values in degrees Fahrenheit. Make sure that each temperature value is between -100 and 100 (inclusive) degrees Fahrenheit.
3. Calculate each temperature data to degrees Celsius using the formula: Celsius = (Fahrenheit – 32) / 1.8. So, if the user enters 100 degrees Fahrenheit, the equivalent temperature in Celsius will be 37.78. You should use the %.2f format specifier in your print statement to format the output.
4. Calculate the total and average of temperature values in degrees Fahrenheit and degrees Celsius. Display all values to the screen.
5. Ask the user for a file name and write the same values in step 4 to an output file.

SAMPLE RUN:
Enter number of data items: abc
INVLAID entry: Input must be a number - try again: a10.7
INVLAID entry: input must be a positive number - try again: 3
Enter temperature in degrees Fahrenheit: 100
Degrees Celsius = 37.78
Enter temperature in degrees Fahrenheit: 1000
Invalid temperature value – try again: -1000
Invalid temperature value – try again: 80
Degrees Celsius = 26.67
Enter temperature in degrees Fahrenheit: 50.3
Degrees Celsius = 10.17
Total temperature in degrees Fahrenheit = 230.30
Total temperature in degrees Celsius = 76.77
Average temperature in degrees Fahrenheit = 74.61
Average temperature in degrees Celsius = 24.87

## Solution Preview

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num_of_data = input('Enter number of data items: ') # ask the user to enter the number of data items
while True:
try:
int_value = int(num_of_data) # check if the input value is number
if int_value >= 0: # check if the input value is greater than zero
# if the input value is number and it is greater than zero, break iteration
break
else:
# if the input value is number but not greater than zero
# ask the user to enter positive number
num_of_data = input('INVALID entry: input must be a positive number - try again: ')
except (NameError, ValueError):
# if the input value is not number ask the user to enter a number
num_of_data = input('INVALID entry: Input must be a number - try again: ')

temperatures_C = [] # make an empty list to store obtained values
temperatures_F = [] # make an empty list to store input values...

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