[Solved] Python – ValueError: invalid literal for int() with base 10: ‘hello’

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The following solution worked. Instead of using int(x) , we need to use 

len(x.encode('utf-8'))

so the final code is updated as 

import io

with io.open(r'C:\Python\Data\somefile.txt','r+') as fp:
    bytecolumn = (line.rsplit(None,1)[1] for line in fp)
    bytes = ( len(x.encode('utf-8'))  for x in bytecolumn if x != '-')
    print('Total', sum(bytes))

solved Python – ValueError: invalid literal for int() with base 10: ‘hello’