can t multiply sequence by non-int of type float

Question

level  beginner  why do i get error  can t multiply sequence by non-int of type  float      def nestEgVariable salary  save  growthRates       SavingsRecord          fund   0     depositPerYear   salary   save   0 01     for i in growthRates            fund   fund    1   0 01   growthRates    depositPerYear         SavingsRecord     fund       return SavingsRecord    print nestEgVariable 10000 10  3 4 5 0 3     thanks Baba

User · Answer

Python allows for you to multiply sequences to repeat their values. Here is a visual example:

>>> [1] * 5
[1, 1, 1, 1, 1]

But it does not allow you to do it with floating point numbers:

>>> [1] * 5.1
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
TypeError: can't multiply sequence by non-int of type 'float'

User · Answer

Because growthRates is a sequence  you re even iterating it   and you multiply it by  1   0 01   which is obviously a float  1 01   I guess you mean for growthRate in growthRates        growthrate

User · Answer

You re multipling your  1   0 01  times the growthRate list  not the item in the list you re iterating through   I ve renamed i to rate and using that instead   See the updated code below   def nestEgVariable salary  save  growthRates       SavingsRecord          fund   0     depositPerYear   salary   save   0 01          V-- rate is a clearer name than i here  since you re iterating through the rates contained in the growthRates list     for rate in growthRates                                        V-- Use the  rate  item in the growthRate list you re iterating through rather than multiplying by the  growthRate  list itself          fund   fund    1   0 01   rate    depositPerYear         SavingsRecord     fund       return SavingsRecord    print nestEgVariable 10000 10  3 4 5 0 3

User · Answer

In this line   fund   fund    1   0 01   growthRates    depositPerYear   I think you mean this   fund   fund    1   0 01   i    depositPerYear   When you try to multiply a float by growthRates  which is a list   you get that error

User · Answer

In this line   fund   fund    1   0 01   growthRates    depositPerYear  growthRates is a sequence   3 4 5 0 3    You can t multiply that sequence by a float  0 1   It looks like what you wanted to put there was i   Incidentally  i is not a great name for that variable  Consider something more descriptive  like growthRate or rate

User · Answer

for i in growthRates        fund   fund    1   0 01   growthRates    depositPerYear   should be   for i in growthRates        fund   fund    1   0 01   i    depositPerYear   You are multiplying 0 01 with the growthRates list object   Multiplying a list by an integer is valid  it s overloaded syntactic sugar that allows you to create an extended a list with copies of its element references    Example    gt  gt  gt  2    1 2   1  2  1  2

[python] can't multiply sequence by non-int of type 'float'

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