Porblem with xlutils/xlrd/xlwt

[Jon Clements]

On Jan 9, 10:44 am, pp <parul.pande... at gmail.com> wrote:
> On Jan 9, 3:42 am, Jon Clements <jon... at googlemail.com> wrote:
>
>
>
> > On Jan 9, 10:24 am, pp <parul.pande... at gmail.com> wrote:
>
> > > Whenever i run the code below I get the following error:
>
> > > AttributeError: 'Book' object has no attribute 'on_demand'
> > > WARNING: Failure executing file: <copy.py>
>
> > > Why is it so??
>
> > > from xlrd import open_workbook
> > > from xlwt import easyxf
> > > from xlutils.copy import copy
> > > rb =  open_workbook('source.xls',formatting_info=True)
> > > rs =  rb.sheet_by_index(0)
> > > wb =  copy(rb)
> > > ws =  wb.get_sheet(0)
> > > plain = easyxf('')
> > > for i,cell in enumerate(rs.col(2)):
> > >      if not i:
> > >          continue
> > >      ws.write(i,2,cell.value,plain)
> > > for i,cell in enumerate(rs.col(4)):
> > >      if not i:
> > >          continue
> > >      ws.write(i,4,cell.value-1000)
> > > wb.save('output.xls')
>
> > I suspect your version of xlrd is not up to date (although I thought
> > on_demand was ages ago!).
> > Make sure all the tools are the latest versions fromhttp://www.python-excel.org
>
> > There's also a dedicated Google Group for the xl* products listed on
> > that page.
>
> > hth
> > Jon.
>
> yeah all my versions are latest fromhttp://www.python-excel.org.
> just checked!!
> what could be the problem?

Does rb = xlrd.open_workbook('somesheet.xls', on_demand=True) work by
itself?