[Django]-ValueError: not enough values to unpack (expected 2, got 1)

jj_choice = {
    '瓶': '瓶',
    '包': '包',
    '盒': '盒',
}

should be written as,

jj_choice = (
    ('瓶', '瓶'),
    ('包', '包'),
    ('盒', '盒'),
)

key,text tuples.

you have

return render(request, 'medicine/add.html', {'form': form},)

you need

return render(request, 'medicine/add.html', {'form': form})

, at the end makes it tuple