elif el == 'Long':
_formats[i]='el[i].read(20)'
combined with
for col in _columndata:
data_vars[col]= eval(_formats[i])
req.write(col + ' : ' + str(eval(_formats[i])) + '\n' )
means that el[i].read(20) gets called twice because of the two evals. So
you see characters 21 to 40.
Daniel Dittmar