[Tutor] Sum files' size

[Alan Gauld]

Susana Iraiis Delgado Rodriguez wrote:
> I want to get the size of  3 files. I already completed this step. Then I
> need to sum the 3 results I got. In order to do it I have the next code:
> 
> import os
> file_list = []
> folders = None
> for root, folders, files in os.walk('C:\\'):
>             file_list.extend(os.path.join(root,fi) for fi in files if
> (fi.endswith.shp))
> for row, filepath in enumerate(file_list, start=1):
>             n = os.path.splitext(filepath)
>             p = n[0]+'.prj'
>             shx = n[0]+'.shx'
>             s = os.path.getsize(filepath)
> 
> #Function to get size in humam readable terms:
>             def sizeof_fmt(num):
>                  for x in ['bytes','KB','MB','GB','TB']:
>                       if num < 1024.0:
>                            return "%3.1f%s" % (num, x)

This returns a string value

>                       num /= 1024.0
> 
>             kb = sizeof_fmt(s)

So kb1 will be astring

>             shx1 = os.path.getsize(shx)
>             kb2 = sizeof_fmt(shx1)

And so will kb2

> #Finally I want to sum the 3 terms:
> total = kb+kb2+kb3

Where does kb3 come from?

> But the output I got is : 15.5KB108.0bytes169.0bytes
> 
> Does anyone have an idea how to fix it?
> Thank you!!

Looks like you are adding the strings. You need to get the
sum then call your format function on the total.

HTH,

Alan G.