django.utils.datastructures.MultiValueDictKeyError: 'image'

Djangoでpost_image.htmlで参照、POSTされたイメージをdisp_image.htmlで表示するプログラムを作成しようとした結果以下のようなエラーがでました。どのように直したら問題が解決しますか？

Traceback (most recent call last):
  File "/home/yuyonod/anaconda3/envs/mlapi/lib/python3.8/site-packages/django/core/handlers/exception.py", line 34, in inner
    response = get_response(request)
  File "/home/yuyonod/anaconda3/envs/mlapi/lib/python3.8/site-packages/django/core/handlers/base.py", line 115, in _get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/yuyonod/anaconda3/envs/mlapi/lib/python3.8/site-packages/django/core/handlers/base.py", line 113, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/yuyonod/work/mlapi/hawkowl/hawkowl/views.py", line 22, in dispImage
    if request.method == 'POST' and request.FILES['image'] and (request.FILES['image'].content_type == "image/png" or request.FILES['image'].content_type == "image/jpeg"):
  File "/home/yuyonod/anaconda3/envs/mlapi/lib/python3.8/site-packages/django/utils/datastructures.py", line 78, in __getitem__
    raise MultiValueDictKeyError(key)
django.utils.datastructures.MultiValueDictKeyError: 'image'
[17/Jun/2020 10:10:51] "POST /disp_image HTTP/1.1" 500 80966

djangoのviews.py

from django.http import HttpResponse, HttpResponseRedirect
from django.views.decorators.csrf import csrf_exempt
from django.shortcuts import render
from hashlib import md5

def post_image(request):
    return render(request, 'post_image.html')

def dispImage(request):
  if request.method == 'POST' and request.FILES['image'] and (request.FILES['image'].content_type == "image/png" or request.FILES['image'].content_type == "image/jpeg"):
    # 画像の拡張子
    extension = ".jpg"
    if request.FILES['image'].content_type == "image/png":
      extension = ".png"

    # ファイル名
    filename = md5(request.FILES['image'].name.encode('utf-8')).hexdigest() + extension

    # ファイルパス
    filepath = 'static/' + filename

    # 画像データを image へ書き写す
    image = open(filepath, 'wb')
    for chunk in request.FILES['image'].chunks():
      image.write(chunk)
    return render(request, 'display_image.html', {'filepath': filepath})
  else:
    return HttpResponseRedirect('/post_image')

post_image.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
    <form action="/disp_image" method='POST' enctype='multipart/form-data'>
    {% csrf_token %}
    <input type="file" name='image'>
    <input type="submit" value='send'>
    </form>
</body>
</html>

disp_image.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>
<body>
<h2>hoge</h2>
<img src="{{filepath}}" alt="">
    <h1></h1>
</body>
</html>
コード