与 Neo4J 集成时的 Django KeyError-python黑洞网

本站消息

站长简介/公众号

出租广告位,需要合作请联系站长

黑洞官方问答小能手

1714779

文章

995822247

访问

+关注

分类

暂无分类

日期归档

暂无数据

与 Neo4J 集成时的 Django KeyError

发布于2023-02-23 23:53 阅读(1090) 评论(0) 点赞(22) 收藏(5)

我正在尝试将 Django 与 Neo4J 集成。为了保存节点，我将提供表格并将节点添加到图中的图中。为了创建模型，我使用了 neomodel 的 StructNode。模型.py

from neomodel import (StructuredNode, StringProperty,
                      IntegerProperty, RelationshipTo,
                      OneOrMore)

class Male(StructuredNode):
    print('Class for male nodes')
    name = StringProperty(unique_index=True, required=True)
    surname = StringProperty()
    age = IntegerProperty()
    country = StringProperty(default='India')

class Female(StructuredNode):
    print('Class for female nodes')
    name = StringProperty(unique_index=True, required=True)
    surname = StringProperty()
    age = IntegerProperty()
    country = StringProperty(default='US')
    ratings = RelationshipTo('Movie', 'HAS_RATED', OneOrMore)

class Movie(StructuredNode):
    print('Class for movie nodes')
    movieName = StringProperty(unique_index=True, required=True)

forms.py

from django import forms
from .models import Male

class MaleForm(forms.ModelForm):
    class Meta:
        model = Male
        fields = '__all__'

views.py

from django.shortcuts import render
from .forms import MaleForm

def index(request):
    form = MaleForm()
    if request.method == 'POST':
        print(request)
    # context = {'form':form}
    return render(request, 'crud/index.html', {'form':form})

索引.html

<h3>Customer Form</h3>
<hr>

<form action="" method="post">
    {% csrf_token %}
    {{form}}
    <input type="submit">

</form>

运行应用程序后，出现以下错误。F:\django\graph_project> python manage.py runserver

Class for male nodes
Class for female nodes
Class for movie nodes
Class for male nodes
Class for female nodes
Class for movie nodes
Watching for file changes with StatReloader
Performing system checks...

Traceback (most recent call last):
  File "C:\software\Anaconda3\lib\site-packages\django\template\utils.py", line 69, in __getitem__
    return self._engines[alias]
KeyError: 'django'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 128, in get_package_libraries
    module = import_module(entry[1])
  File "C:\software\Anaconda3\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\software\Anaconda3\lib\site-packages\django\templatetags\future.py", line 2, in <module>
    from django.template.defaulttags import kwarg_re, SsiNode, URLNode
ImportError: cannot import name 'SsiNode' from 'django.template.defaulttags' (C:\software\Anaconda3\lib\site-packages\django\template\defaulttags.py)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    main()
  File "manage.py", line 18, in main
    execute_from_command_line(sys.argv)
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\__init__.py", line 446, in execute_from_command_line
    utility.execute()
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\__init__.py", line 440, in execute
    self.fetch_command(subcommand).run_from_argv(self.argv)
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\base.py", line 402, in run_from_argv
    self.execute(*args, **cmd_options)
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\commands\runserver.py", line 74, in execute
    super().execute(*args, **options)
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\base.py", line 448, in execute
    output = self.handle(*args, **options)
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\commands\runserver.py", line 111, in handle
    self.run(**options)
  File "C:\software\Anaconda3\lib\site-packages\django\core\management\commands\runserver.py", line 118, in run
    autoreload.run_with_reloader(self.inner_run, **options)
  File "C:\software\Anaconda3\lib\site-packages\django\utils\autoreload.py", line 680, in run_with_reloader
    start_django(reloader, main_func, *args, **kwargs)
  File "C:\software\Anaconda3\lib\site-packages\django\utils\autoreload.py", line 661, in start_django
    reloader.run(django_main_thread)
  File "C:\software\Anaconda3\lib\site-packages\django\utils\autoreload.py", line 343, in run
    autoreload_started.send(sender=self)
  File "C:\software\Anaconda3\lib\site-packages\django\dispatch\dispatcher.py", line 176, in send
    return [
  File "C:\software\Anaconda3\lib\site-packages\django\dispatch\dispatcher.py", line 177, in <listcomp>
    (receiver, receiver(signal=self, sender=sender, **named))
  File "C:\software\Anaconda3\lib\site-packages\django\template\autoreload.py", line 43, in watch_for_template_changes
    for directory in get_template_directories():
  File "C:\software\Anaconda3\lib\site-packages\django\template\autoreload.py", line 16, in get_template_directories
    for backend in engines.all():
  File "C:\software\Anaconda3\lib\site-packages\django\template\utils.py", line 94, in all
    return [self[alias] for alias in self]
  File "C:\software\Anaconda3\lib\site-packages\django\template\utils.py", line 94, in <listcomp>
    return [self[alias] for alias in self]
  File "C:\software\Anaconda3\lib\site-packages\django\template\utils.py", line 85, in __getitem__
    engine = engine_cls(params)
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 24, in __init__
    options["libraries"] = self.get_templatetag_libraries(libraries)
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 42, in get_templatetag_libraries
    libraries = get_installed_libraries()
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 116, in get_installed_libraries
    return {
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 116, in <dictcomp>
    return {
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 105, in get_template_tag_modules
    for name in get_package_libraries(pkg):
  File "C:\software\Anaconda3\lib\site-packages\django\template\backends\django.py", line 130, in get_package_libraries
    raise InvalidTemplateLibrary(
django.template.library.InvalidTemplateLibrary: Invalid template library specified. ImportError raised when trying to load 'django.templatetags.future': cannot impor
t name 'SsiNode' from 'django.template.defaulttags' (C:\software\Anaconda3\lib\site-packages\django\template\defaulttags.py)