Question

Write a class called TemperatureFile.
• The class has one data attribute： __filename
• Write getter and setter for the data attribute.
• Write a “calculateAverage” function (signature below) to calculate and
return average temperature of all temperatures in the file.
def calculateAverage(self):
• Handle possible exceptions

Write a main function:
• Create a file ('Temperatures.txt’) and then use “write” method to write
temperature values on each line.
• Create an object of the TemperaureFile with the filename
(‘Temperatures.txt’) just created.
• Use the object to call calcuateAverage function and print out the
returned average temperature.
• Handle possible exceptions in main function.

----------------------------------------------------------------------------------------------

# Create Class

class tempearutefile:

def __init__(self, filename):

self.__filename = filename

def set_filename(self, filename):

self.__filename = filename

def get_filename(self):

return self.__filename

def calculateAverage(self, num1,num2,num3):

try:

total = num1+ num2+ num3

average = total/3

return average

# exception errors

except ValueError as err:

print(err)

except IOError as err:

print(err)

except Exception as err:

print(err)

def main():

try:

#Getting input from the users

num1=float(input("Please enter your first value: "))

num2=float(input("Please enter your second value: "))

num3=float(input("Please enter your third value: "))

#Creating temperatue file

test_file= open('Temperatures.txt', 'w')

#writing input informatin to the file

test_file.write(str(num1) + '\n')

test_file.write(str(num2) + '\n')

test_file.write(str(num3) + '\n')

#closing file

test_file.close()

temp1 = tempearutefile(test_file)

average = temp1.calculateAverage (float(num1),float(num2),float(num3))

print("your average temperatue is:", average)

# exception errors

except ValueError as err:

print(err)

except IOError as err:

print(err)

except Exception as err:

print(err)

#Call to main

main()

*** I am getting this error: ( 'tempearutefile' object has no attribute 'calculateAverage' ) when trying to run the program. ***

Answer 1

Hi

Your code is well written and I ran your code and it working fine, here is the output and the screenshot

==============================================================================================

# Create Class
class tempearutefile:
    def __init__(self, filename):
        self.__filename = filename
    def set_filename(self, filename):
        self.__filename = filename
    def get_filename(self):
        return self.__filename
    def calculateAverage(self, num1,num2,num3):
        try:
            total = num1+ num2+ num3
            average = total/3
            return average
        # exception errors
        except ValueError as err:
            print(err)
        except IOError as err:
            print(err)
        except Exception as err:
            print(err)
def main():
    try:
        #Getting input from the users
        num1=float(input("Please enter your first value: "))
        num2=float(input("Please enter your second value: "))
        num3=float(input("Please enter your third value: "))
        #Creating temperatue file
        test_file= open('D:\\Temperatures.txt', 'w')
        #writing input informatin to the file
        test_file.write(str(num1) + '\n')
        test_file.write(str(num2) + '\n')
       test_file.write(str(num3) + '\n')
        #closing file
        test_file.close()
        temp1 = tempearutefile(test_file)
        average = temp1.calculateAverage (float(num1),float(num2),float(num3))
        print("your average temperature is:", average)
        # exception errors
    except ValueError as err:
        print(err)
    except IOError as err:
        print(err)
    except Exception as err:
        print(err)
    #Call to main
main()

==================================================================================

# Create Class class tempearutefile: def init self, filename seif. filename= fiïename def set filename (self, filename): def get filename (self) def calculateAverage (self, numl, num2, num3): self.filenamefilename return self. filename try: total = num1+ num2 + num3 averagetotal/3 return average # exception errors except ValueError as err: except IOError as err: except Exception as err print (err print (err) print (err def main: try: #Getting input from the users numl-float (input("Please enter your first value: ") num2-float (input (" Please enter your second value: ") num3-float (input ("Please enter your third value: "1 #creating temperatue file test-file= open ("D: \\Temperatures. txt', 'w') #writing input informatin to the file test file.write(str (numlj + 'In test file.write (str (num2) + '\n'! test file.write (str (num3) + 'In') #closing file test file.close () temp 1 tempear ut e file (test-file) averagetemp1.calculateAverage (float (numl), float (num2), float (num3)) print("your average temperature is:", average) # exception errors except ValueError as err: except IOError as err: except Exception as err #call to main print (err print (err) print (err main

return average # exception errors except ValueError as err: except IOError as err: except Exception as err: print (err) print (err) print (err) 切 白def main ( ) : try: #Getting input fr the users numl-float (input ("Please enter your first value: )) num2-float (input("Please enter your second value: ") num3-float (input ("Please enter your third value: )) #creating temperatue file test file- open ('D:Temperatures #writing input, mat to the file test_file.write (str (num) n') test file.write (str (num2) n') test_file.write (str (num3)n') #closing file test file.close () tempi tempearute file (test-file) average#temp1.calculateAverage (float (numi), float (num2), float {num3)) print("your average temperature is:", average) txt, w) except ValueError as err except I0Error as err: except Exception as err: Call to main exception errors print (err) print (err) print (err) main() Run: Pentagon Pentagon D:Development Avecto Python361python.exe C:Users/248341/FycharmProjects/untitled/Pentagon.py Please enter your first value: 78 Please enter your second value: 72 Please enter your third value: 82 your average temperature is: 77.33333333333333 Process finished with exit code 0 4 Run TODO Python Console Terminal