Log Message:
py-xlsxwriter: updated to 1.2.0

Release 1.2.0:

* Refactored exception handling around the workbook file :func:close()
  method to allow exceptions to be caught and handled. See
  :ref:ex_check_close. Also refactored the code to clean up temp files in
  the event of an exception.

* Added the option to allow chart fonts to be rotated to 270 degrees
  to give a stacked orientation. See :ref:chart_fonts.