[Tutor] ValueError: invalid literal for int() with base 10: '' is outcome in line 89--statSet.addNumber(int(n))

[matt]

   My code is ( i did try to give (int(float(n))) but it didn’t work either):

    

   #statistics calc

   from math import sqrt

    

   #def stat set funk.

   class StatSet:

       def __init__(self):

           self.data = 0

    

   #def get data

       def getData(self):

           return self.data

    

   #def add num.

       def addNumber(self,x):

           if isinstance(x,(int,float)):

               data = self.data

               data.append(x)

               self.data = data

               return self

   #def mean funk.

       def mean(self):

           nums = self.data

    

   #check (if) cond.

           if len(nums)>0:

               return sum(nums)/len(nums)

           else:

               return 0

    

   #def med funk.

       def median(self):

           nums = self.data

           nums.sort()

           length = len(nums)

           remainder = length%2

           med = 0

    

   #if to check length

           if length == 0:

               return Non

           elif remainder ==0:

               med = (nums[length//2] + nums[length//2-1])/2

           else:

               med = nums[length//2]

           return med

    

   #def funk. stdDev

       def stdDev(self):

           data = self.data

           N = self.count()

           mean = self.mean()

           devSum = 0

    

           for i in range(N):

               devSum = devSum + (data[i] - mean)**2

           return sqrt(devSum)

    

   #def count funk.

       def count(self):

           count = len(self.data)

           return count

    

   # def min funk.

       def min(self):

           nums = self.data

           nums.sort()

           minNum = nums[0]

           return minNum

    

   #def max funk.

       def max(self):

           nums = self.data

           nums.sort()

           maxNum = nums[-1]

           return maxNum

    

   #main prog.

   def main():

           print("Program test of StatSet class")

    

   #class constructor

           statSet = StatSet()

           while True:

               n = input("Enter a number (to quit): ")

               if n =="":

                   break

   #call addnumber funk.

           statSet.addNumber(int(n))

                            

           print("Data: ", statSet.getData())

           print("Mean: ", statSet.mean())

           print("Median: ", statSet.median())

           print("Standard deviation: ", statSet.stdDev())

           print("Min: ", statSet.min())

           print("Max: ", statSet.max())

           print("Data: ", statSet.getData())

           print("Count: ", statSet.count())

    

           if __name__ == '__main__':

               main()

   main()

    

    

   when I enter values I get an error message at the end for line 89
   “statSet.addNumber(int(n))”

   Sent from [1]Mail for Windows

    

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