[Django]-How to edit field in django admin panel

I think you want to editable field on your list

models.py :
# -*- coding: utf-8 -*-
from __future__ import unicode_literals

from django.db import models

TYPES_CHOICES = (
    ('normal', 'normal'),
    ('archive', 'archive'),
)


class Period(models.Model):
    date_start = models.DateTimeField(help_text='date_start')
    date_end = models.DateTimeField(help_text='date_end')
    period_type = models.CharField(choices=TYPES_CHOICES, default=TYPES_CHOICES[0][0], max_length=10)


admins.py :
# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.contrib import admin
from .models import Period


class PeriodAdmin(admin.ModelAdmin):
    list_display = ('id', 'date_start', 'date_end', 'period_type',)
    list_editable = ('date_start', 'date_end', 'period_type', )


admin.site.register(Period, PeriodAdmin)