我在views.py中的代码越来越大，现在我想将其拆分为模块。但是我对变量有麻烦。问题在于我不应该在自定义模块或views.py中声明变量或导入内置模块。这是我的代码：

views.py：

@login_required(login_url='sign_in')
def result(request):
    find_by_fives()
    context = {
        'last_uploaded': last_uploaded,'words_count': words_count,'characters_count': characters_count
    }
    return render(request,'result.html',context)

find_by_fives.py（是我的自定义模块）：

import glob 
from .models import OriginalDocument
from django.shortcuts import render

def find_by_fives():
    last_uploaded = OriginalDocument.objects.latest('id')

    original = open(str(last_uploaded.document),'r')
    original_words = original.read().lower().split()
    words_count = len(original_words)

    open_original = open(str(last_uploaded.document),"r")
    read_original = open_original.read()
    characters_count = len(read_original)

    path = 'static/other_documents/doc*.txt'
    files = glob.glob(path)                       

错误：NameError: name 'last_uploaded' is not defined

注意：这不是我的全部观点，我只想知道应该在哪里声明context，变量和导入。