openpyxl version 1.1.0-1 failed to build on i386

openpyxl version 1.1.0-1 failed to build on i386
Link to failed build: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2406283

Direct link to the build log: https://launchpad.net/ubuntu/+archive/test-rebuild-20110329/+buildjob/2406283/+files/buildlog_ubuntu-natty-i386.openpyxl_1.1.0-1_FAILEDTOBUILD.txt.gz

This log snippet might be of interest, since it triggered the matcher 'Purging chroot-autobuild'.
Excerpt 1136 lines into the build log:

    content = write_string_table(string_table = shared_string_table))
  File "src/openpyxl/writer/strings.py", line 61, in write_string_table
    return get_document_content(xml_node = root)
  File "src/openpyxl/shared/xmltools.py", line 35, in get_document_content
    ElementTree(xml_node).write(file = fl, encoding = 'UTF-8')
TypeError: write() got an unexpected keyword argument 'file'

----------------------------------------------------------------------
Ran 69 tests in 0.332s

FAILED (errors=11)
make[1]: *** [override_dh_auto_test] Error 1
make[1]: Leaving directory `/build/buildd/openpyxl-1.1.0'
make: *** [build] Error 2
dpkg-buildpackage: error: debian/rules build gave error exit status 2
******************************************************************************
Build finished at 20110408-1518
FAILED [dpkg-buildpackage died]
Purging chroot-autobuild/build/buildd/openpyxl-1.1.0