Merge lp:~aelkner/schooltool/workbook_filename_bug into lp:schooltool/1.7

[Alan Elkner]

The underlying workbook library simply crashes when the filename is larger than 31 characters, so I truncates the year name at 10 chars and the term at 11 to make sure it never got larger than 31.

=== modified file 'src/schooltool/export/export.py'
--- src/schooltool/export/export.py	2009-11-19 02:00:46 +0000
+++ src/schooltool/export/export.py	2010-11-02 01:51:04 +0000
@@ -497,8 +497,8 @@
         for school_year in sorted(school_years, key=lambda i: i.last):
             for term in sorted(school_year.values(), key=lambda i: i.last):
                 row = 0
-                ws = wb.add_sheet("Sections %s %s" % (school_year.__name__,
-                                                      term.__name__))
+                ws = wb.add_sheet("Sections %s %s" % (school_year.__name__[:10],
+                                                      term.__name__[:11]))
 
                 self.write_header(ws, row, 0,  "School Year")
                 self.write(ws, row, 1,  school_year.__name__)