Django rest framework 我无法使用卷标语法

我的项目名称='rest'&项目应用名称='restapp' 我意识到这个错误，我无法理解

OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: '<frozen importlib._bootstrap>'

url.py：

from django.contrib import admin
from django.conf.urls import url
from django.urls import path, include
from rest_framework import routers
from restapp.views import StockViews
from restapp import views

router = routers.DefaultRouter()
router.register('stock', views.StockViews)

urlpatterns = [
    url(r'', include(router.urls)),
    path('admin/', admin.site.urls),
]

Serializaer.py：

from .models import stock
from rest_framework import serializers


class StockSerializer(serializers.ModelSerializer):
    class Meta:
        model = stock
        fields = ('id', 'stock_name', 'price', 'stock_gain', 'market_name')

我已经安装了pip过滤器，并在setting.py中的installed_apps中添加了这些应用：

"restapp",， “rest_框架”，

---

“django\u过滤器”

ImportError:无法从“django.utils”（C:\Users\hajar\OneDrive\Desktop\stockm\env\lib\site packages\django\utils\u init\uuuz.py）导入名称“six”）

from .models import stock
from rest_framework import serializers


class StockSerializer(serializers.ModelSerializer):
    class Meta:
        model = stock
        fields = ('id', 'stock_name', 'price', 'stock_gain', 'market_name')