-    def build_package(self, zippath, student, verbose):
-        with open(zippath, 'w') as outf:
-            zipf = zipfile.ZipFile(outf, 'w', zipfile.ZIP_STORED)
-            
-            for si, section in enumerate(Section.objects.all()):
-                li = 1
-                for lesson in section.lesson_set.all():
-                    if lesson.type == 'course':
-                        prefix = "%d_%s/%02d_%s/" % (
-                                si, section.slug,
-                                li, lesson.slug,
-                            )
-                        li += 1
-                    elif lesson.type == 'synthetic':
-                        prefix = "%d_%s/synteza_%s/" % (
-                                si, section.slug, lesson.slug)
-                    else:
-                        prefix = "%d_%s/%s/" % (
-                                si, section.slug, lesson.slug)
-                    lesson.add_to_zip(zipf, student, prefix)
-            zipf.close()
-