如何在django中使用HTMLParser的另一个模块位置

Question

我出现了HTMLParser的错误，在终端显示:-

从django.utils.html导入format_html，format_html_join，转义 文件"/usr/local/lib/python3.5/dist-packages/django/utils/html.py"，第16行，在 从.html_parser import HTMLParser，HTMLParseError 文件"/usr/local/lib/python3.5/dist-packages/django/utils/html_parser.py"，第12行，在 HTMLParseError = _html_parser.HTMLParseError AttributeError:模块“html.parser”没有属性“HTMLParseError”

使用pip3的Python3.5Django 1.7.7

根据社区的说法，他们说HTML解析器是在Python3.5版本上删除的，在我的这个旧应用程序上。

我该怎么办:-

• 用另一种类似的方法取代HTMLParser？或
• 我尝试过降低python版本的级别，但默认情况下它需要使用lib /usr/lib/python3.5来更改这个路径。

请帮我一下。

我的需求文件需求/Common.txt如下所示

​

# Core Stuff
# -------------------------------------
django>=1.7.7,<1.8
whitenoise==2.0.6

# Authentication
# -------------------------------------
django-facebook==6.0.3
PyJWT==1.4.0

# Notifications
# -------------------------------------
django-twilio-sms-2==1.0.2
hashids==1.1.0
apns==2.0.1

# Extensions
# -------------------------------------
django-extensions==1.6.1
Werkzeug==0.11.3
pytz==2015.7
django-sampledatahelper==0.3
arrow==0.7.0
requests==2.9.1
django-flat-theme==1.1.3

# Configuration
# -------------------------------------
django-sites==0.9
django-secure==1.0.1
python-dotenv==0.3.0
django-environ==0.4.0

# Models
# -------------------------------------
django-model-utils==2.4
django-uuid-upload-path==1.0.0
django-versatileimagefield==1.3
django-jsonfield==0.9.15

# Images
# -------------------------------------
Pillow==3.1.1

# For the persistance stores
# -------------------------------------
psycopg2==2.6.1

# Celery
# -------------------------------------
celery==3.1.20

# Unicode slugification
# -------------------------------------
unicode-slugify==0.1.3
django-autoslug==1.9.3

# Django Rest Framework
# -------------------------------------
djangorestframework==3.3.2
django_filter<=0.11.0  # Do not upgrade until django 1.8
Markdown>=2.3.1,<2.5   # to fix conflict with mkdocs

​

和需求/开发。

​

-r common.txt

# Documentation
# -------------------------------------
mkdocs==0.15.2
# pygraphviz==1.3rc2
isort==4.2.2

# Debugging
# -------------------------------------
django-debug-toolbar==1.4
ipython==4.1.1
ipdb==0.8.1

# Testing
# -------------------------------------
mock==1.3.0
factory_boy==2.6.0
flake8==2.5.2
pytest==2.8.7
pytest-django==2.9.1
pytest-flakes==1.0.1
pytest-mock==0.10.1
pytest-pythonpath==0.7
coverage==4.0.3
freezegun==0.3.6
pytest-capturelog==0.7

# Versioning
# -------------------------------------
bumpversion==0.5.3

​

和要求/生产。

​

# Pro-tip: Try not to put anything here. There should be no dependency in
#   production that isn't in development.
-r common.txt

# WSGI Handler
# -------------------------------------
gunicorn==19.4.5

# Caching
# -------------------------------------
django-redis==4.3.0
hiredis==0.2.0

# S3 storgage
# -------------------------------------
# boto==2.39.0
# django-storages-redux==1.3.2

# Logging
# -------------------------------------
newrelic==2.60.0.46

​

在运行$ python3 manage.py makemigrations时进行需求安装后，出现以下错误。

​

Traceback (most recent call last):
  File "manage.py", line 22, in <module>
    execute_from_command_line(sys.argv)
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
    utility.execute()
  File "/usr/local/lib/python3.5/dist-packages/django/core/management/__init__.py", line 354, in execute
    django.setup()
  File "/usr/local/lib/python3.5/dist-packages/django/__init__.py", line 18, in setup
    from django.utils.log import configure_logging
  File "/usr/local/lib/python3.5/dist-packages/django/utils/log.py", line 13, in <module>
    from django.views.debug import ExceptionReporter, get_exception_reporter_filter
  File "/usr/local/lib/python3.5/dist-packages/django/views/debug.py", line 10, in <module>
    from django.http import (HttpResponse, HttpResponseServerError,
  File "/usr/local/lib/python3.5/dist-packages/django/http/__init__.py", line 4, in <module>
    from django.http.response import (
  File "/usr/local/lib/python3.5/dist-packages/django/http/response.py", line 13, in <module>
    from django.core.serializers.json import DjangoJSONEncoder
  File "/usr/local/lib/python3.5/dist-packages/django/core/serializers/__init__.py", line 23, in <module>
    from django.core.serializers.base import SerializerDoesNotExist
  File "/usr/local/lib/python3.5/dist-packages/django/core/serializers/base.py", line 6, in <module>
    from django.db import models
  File "/usr/local/lib/python3.5/dist-packages/django/db/models/__init__.py", line 6, in <module>
    from django.db.models.query import Q, QuerySet, Prefetch  # NOQA
  File "/usr/local/lib/python3.5/dist-packages/django/db/models/query.py", line 13, in <module>
    from django.db.models.fields import AutoField, Empty, FieldDoesNotExist
  File "/usr/local/lib/python3.5/dist-packages/django/db/models/fields/__init__.py", line 18, in <module>
    from django import forms
  File "/usr/local/lib/python3.5/dist-packages/django/forms/__init__.py", line 6, in <module>
    from django.forms.fields import *  # NOQA
  File "/usr/local/lib/python3.5/dist-packages/django/forms/fields.py", line 18, in <module>
    from django.forms.utils import from_current_timezone, to_current_timezone
  File "/usr/local/lib/python3.5/dist-packages/django/forms/utils.py", line 15, in <module>
    from django.utils.html import format_html, format_html_join, escape
  File "/usr/local/lib/python3.5/dist-packages/django/utils/html.py", line 16, in <module>
    from .html_parser import HTMLParser, HTMLParseError
  File "/usr/local/lib/python3.5/dist-packages/django/utils/html_parser.py", line 12, in <module>
    HTMLParseError = _html_parser.HTMLParseError
AttributeError: module 'html.parser' has no attribute 'HTMLParseError'

​

尝试过的参考资料：

AttributeError:模块“html.parser”没有属性“HTMLParseError” https://code.djangoproject.com/ticket/23763

Answer 1

你有两个机会：

1. 使用python 3.4
2. 将项目更新为Django 1.8

使用python 3.4

如果您正在使用Ubuntu，可以使用以下指令安装python3.4- https://askubuntu.com/questions/802279/how-to-install-python-3-4-5-from-apt

然后，您可以使用python3.4创建虚拟环境。

$ virtualenv .env -p /usr/bin/python3.4
$ source .env/bin/activate

将项目更新为Django 1.8

这是更困难但更好的方式，因为你会得到较少的bug，获得安全补丁，你可以使用新的功能。

这里你可以读到更多关于什么是新的以及如何升级你的项目。