# How do I multiply items within a CSV

Hi, I am trying to import a CSV file then find the product of all of the numbers within the file. The code I have used so far is:

```
import csv
mylist = list(csv.reader(open(DATA+'mydata.csv','rb'),dialect='excel'))
from numpy import prod
prod(mylist)
```

However, this doesn't work, I receive the following error "TypeError: cannot perform reduce with flexible type".

I think this is because of the format of how the mylist is created. This list data comes out in this format:

```
[['1'],['2'],['3']]
```

How do I coerce it into the format (1,2,3)?