I have to import the data into models from excel sheet from admin site and
the code is
models.py
class Exam(models.Model): Examname = models.CharField(null=False,
blank=False, max_length=255)
class Meta: unique_together = ["Examname"]
def *str*(self): return self.Examname
admin.py
@admin.register(Exam) class ViewAdmin(ImportExportModelAdmin): exclude =
('id', )
While importing the data the errors are Line number: 2 - NOT NULL
constraint failed: allotment_exam.Examname and Line number: 3 - NOT NULL
constraint failed: allotment_exam.Examname
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