Django: AttributeError: 'NoneType' object has no attribute 'split'
Django: AttributeError: 'NoneType' object has no attribute 'split'
我正在尝试使用 Django 构建一个静态站点生成器(因为它足智多谋),现在我的问题是处理应该将我的静态站点内容构建到目录中的 Django 命令。显然我的 'NoneType' 对象没有属性 'split',但我不知道那个 'NoneType' 对象是什么。
(thisSite) C:\Users\Jaysp_000\thisSite\PROJECTx>python prototype.py build
Traceback (most recent call last):
File "prototype.py", line 31, in <module>
execute_from_command_line(sys.argv)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\__init__.py",
line 338, in execute_from_command_line
utility.execute()
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\__init__.py",
line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\base.py", lin
e 390, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\base.py", lin
e 441, in execute
output = self.handle(*args, **options)
File "C:\Users\Jaysp_000\thisSite\PROJECTx\sitebuilder\management\commands\build.py", li
ne 38, in handle
response = this_client_will.get(the_page_url)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 500, in
get
**extra)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 303, in
get
return self.generic('GET', path, secure=secure, **r)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 379, in
generic
return self.request(**r)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 466, in
request
six.reraise(*exc_info)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\utils\six.py", line 659, in r
eraise
raise value
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\handlers\base.py", line
132, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Jaysp_000\thisSite\PROJECTx\sitebuilder\views.py", line 35, in page
return render(request, 'page.html', context)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\shortcuts.py", line 67, in re
nder
template_name, context, request=request, using=using)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\loader.py", line 99,
in render_to_string
return template.render(context, request)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\backends\django.py",
line 74, in render
return self.template.render(context)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\base.py", line 208,
in render
with context.bind_template(self):
File "C:\Python34\Lib\contextlib.py", line 59, in __enter__
return next(self.gen)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\context.py", line 23
5, in bind_template
updates.update(processor(self.request))
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\context_processors.p
y", line 56, in i18n
context_extras['LANGUAGE_BIDI'] = translation.get_language_bidi()
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\utils\translation\__init__.py
", line 177, in get_language_bidi
return _trans.get_language_bidi()
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\utils\translation\trans_real.
py", line 263, in get_language_bidi
base_lang = get_language().split('-')[0]
AttributeError: 'NoneType' object has no attribute 'split'
看来我的问题出在我的命令文件上,我称之为build
。回溯还显示了我的 views
文件,它本身运行良好(也就是说,我的 html 文件可以在本地服务器上正常提供),但无论如何我都会包含它。
build.py
import os, shutil
from django.conf import settings
from django.core.management import call_command
from django.core.management.base import BaseCommand
from django.core.urlresolvers import reverse
from django.test.client import Client
def get_pages():
for name in os.listdir(settings.STATIC_PAGES_DIRECTORY):
if name.endswith('.html'):
yield name[:-5]
class Command(BaseCommand):
help = 'Build static site output.'
def handle(self, *args, **options):
"""Request pages and build output."""
if os.path.exists(settings.SITE_OUTPUT_DIRECTORY):
shutil.rmtree(settings.SITE_OUTPUT_DIRECTORY)
os.mkdir(settings.SITE_OUTPUT_DIRECTORY)
os.makedirs(settings.STATIC_ROOT)
call_command('collectstatic', interactive=False, clear=True, verbosity=0)
this_client_will = Client()
for page in get_pages():
the_page_url = reverse('page',kwargs={'slug': page}) # PROBLEM SEEMS TO GENERATE STARTING HERE
response = this_client_will.get(the_page_url)
if page == 'index.html':
output_dir = settings.SITE_OUTPUT_DIRECTORY
else:
output_dir = os.path.join(settings.SITE_OUTPUT_DIRECTORY, page)
os.makedirs(output_dir)
with open(os.path.join(output_dir, 'index.html'), 'wb', encoding='utf8') as f:
f.write(response.content)
views.py
import os
from django.conf import settings
from django.http import Http404
from django.shortcuts import render
from django.template import Template
from django.utils._os import safe_join
# Create your views here.
def get_page_or_404(name):
"""Returns page content as a Django template or raise 404 error"""
try:
file_path = safe_join(settings.STATIC_PAGES_DIRECTORY, name)
except ValueError:
raise Http404("Page Not Found")
else:
if not os.path.exists(file_path):
raise Http404("Page Not Found")
with open(file_path,"r", encoding='utf8') as f:
the_page = Template(f.read())
return the_page
def page(request, slug='index'):
""" Render the requested page if found """
file_name = '{0}.html'.format(slug)
page = get_page_or_404(file_name)
context = {'slug': slug, 'page': page}
return render(request, 'page.html', context) # THE TRACEBACK POINTS AT THIS LINE, TOO
为了以防万一它变得有用,这是我的 urls.py:
from django.conf.urls import include, url
urlpatterns = [
url(r'^page/(?P<slug>[-\w]+)/$', 'sitebuilder.views.page', name='page'),
url(r'^page$', 'sitebuilder.views.page', name='homepage'),
]
我觉得这很令人沮丧,主要是因为这个问题似乎与 reverse() 函数有关,正如在构建模块中所看到的那样,从我记事起我就没有愉快地使用过该函数,但我不知道这是否真的是我的问题。有人可以帮我弄清楚我的问题出在哪里以及如何解决吗(如果您有任何提示)?将不胜感激。
尝试在您的页面视图中激活一种语言:
from django.utils import translation
def page(request, slug='index'):
""" Render the requested page if found """
file_name = '{0}.html'.format(slug)
page = get_page_or_404(file_name)
context = {'slug': slug, 'page': page}
translation.activate('en') # <------- Activate language EN
return render(request, 'page.html', context)
这是因为上下文处理器正在尝试获取上下文语言,显然是None。
更新:
好的,正如knbk所说,这是1.8中的一个错误,因此您需要将其升级到新版本..
base_lang = get_language().split('-')[0]
这一行是 Django 1.8 中的错误。它作为 1.8.1:
的一部分被修复
Prevented TypeError in translation functions check_for_language() and get_language_bidi() when translations are deactivated (#24569).
您应该升级到最新的 1.8.x 版本 1.8.8。在撰写本文时。这将修复此错误和其他错误。
次要版本仅包含错误修复和安全补丁,因此无论您使用的是什么主要版本,您都应该始终升级到最新的次要版本。
我正在尝试使用 Django 构建一个静态站点生成器(因为它足智多谋),现在我的问题是处理应该将我的静态站点内容构建到目录中的 Django 命令。显然我的 'NoneType' 对象没有属性 'split',但我不知道那个 'NoneType' 对象是什么。
(thisSite) C:\Users\Jaysp_000\thisSite\PROJECTx>python prototype.py build
Traceback (most recent call last):
File "prototype.py", line 31, in <module>
execute_from_command_line(sys.argv)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\__init__.py",
line 338, in execute_from_command_line
utility.execute()
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\__init__.py",
line 330, in execute
self.fetch_command(subcommand).run_from_argv(self.argv)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\base.py", lin
e 390, in run_from_argv
self.execute(*args, **cmd_options)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\management\base.py", lin
e 441, in execute
output = self.handle(*args, **options)
File "C:\Users\Jaysp_000\thisSite\PROJECTx\sitebuilder\management\commands\build.py", li
ne 38, in handle
response = this_client_will.get(the_page_url)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 500, in
get
**extra)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 303, in
get
return self.generic('GET', path, secure=secure, **r)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 379, in
generic
return self.request(**r)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\test\client.py", line 466, in
request
six.reraise(*exc_info)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\utils\six.py", line 659, in r
eraise
raise value
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\core\handlers\base.py", line
132, in get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Jaysp_000\thisSite\PROJECTx\sitebuilder\views.py", line 35, in page
return render(request, 'page.html', context)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\shortcuts.py", line 67, in re
nder
template_name, context, request=request, using=using)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\loader.py", line 99,
in render_to_string
return template.render(context, request)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\backends\django.py",
line 74, in render
return self.template.render(context)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\base.py", line 208,
in render
with context.bind_template(self):
File "C:\Python34\Lib\contextlib.py", line 59, in __enter__
return next(self.gen)
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\context.py", line 23
5, in bind_template
updates.update(processor(self.request))
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\template\context_processors.p
y", line 56, in i18n
context_extras['LANGUAGE_BIDI'] = translation.get_language_bidi()
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\utils\translation\__init__.py
", line 177, in get_language_bidi
return _trans.get_language_bidi()
File "C:\Users\Jaysp_000\thisSite\lib\site-packages\django\utils\translation\trans_real.
py", line 263, in get_language_bidi
base_lang = get_language().split('-')[0]
AttributeError: 'NoneType' object has no attribute 'split'
看来我的问题出在我的命令文件上,我称之为build
。回溯还显示了我的 views
文件,它本身运行良好(也就是说,我的 html 文件可以在本地服务器上正常提供),但无论如何我都会包含它。
build.py
import os, shutil
from django.conf import settings
from django.core.management import call_command
from django.core.management.base import BaseCommand
from django.core.urlresolvers import reverse
from django.test.client import Client
def get_pages():
for name in os.listdir(settings.STATIC_PAGES_DIRECTORY):
if name.endswith('.html'):
yield name[:-5]
class Command(BaseCommand):
help = 'Build static site output.'
def handle(self, *args, **options):
"""Request pages and build output."""
if os.path.exists(settings.SITE_OUTPUT_DIRECTORY):
shutil.rmtree(settings.SITE_OUTPUT_DIRECTORY)
os.mkdir(settings.SITE_OUTPUT_DIRECTORY)
os.makedirs(settings.STATIC_ROOT)
call_command('collectstatic', interactive=False, clear=True, verbosity=0)
this_client_will = Client()
for page in get_pages():
the_page_url = reverse('page',kwargs={'slug': page}) # PROBLEM SEEMS TO GENERATE STARTING HERE
response = this_client_will.get(the_page_url)
if page == 'index.html':
output_dir = settings.SITE_OUTPUT_DIRECTORY
else:
output_dir = os.path.join(settings.SITE_OUTPUT_DIRECTORY, page)
os.makedirs(output_dir)
with open(os.path.join(output_dir, 'index.html'), 'wb', encoding='utf8') as f:
f.write(response.content)
views.py
import os
from django.conf import settings
from django.http import Http404
from django.shortcuts import render
from django.template import Template
from django.utils._os import safe_join
# Create your views here.
def get_page_or_404(name):
"""Returns page content as a Django template or raise 404 error"""
try:
file_path = safe_join(settings.STATIC_PAGES_DIRECTORY, name)
except ValueError:
raise Http404("Page Not Found")
else:
if not os.path.exists(file_path):
raise Http404("Page Not Found")
with open(file_path,"r", encoding='utf8') as f:
the_page = Template(f.read())
return the_page
def page(request, slug='index'):
""" Render the requested page if found """
file_name = '{0}.html'.format(slug)
page = get_page_or_404(file_name)
context = {'slug': slug, 'page': page}
return render(request, 'page.html', context) # THE TRACEBACK POINTS AT THIS LINE, TOO
为了以防万一它变得有用,这是我的 urls.py:
from django.conf.urls import include, url
urlpatterns = [
url(r'^page/(?P<slug>[-\w]+)/$', 'sitebuilder.views.page', name='page'),
url(r'^page$', 'sitebuilder.views.page', name='homepage'),
]
我觉得这很令人沮丧,主要是因为这个问题似乎与 reverse() 函数有关,正如在构建模块中所看到的那样,从我记事起我就没有愉快地使用过该函数,但我不知道这是否真的是我的问题。有人可以帮我弄清楚我的问题出在哪里以及如何解决吗(如果您有任何提示)?将不胜感激。
尝试在您的页面视图中激活一种语言:
from django.utils import translation
def page(request, slug='index'):
""" Render the requested page if found """
file_name = '{0}.html'.format(slug)
page = get_page_or_404(file_name)
context = {'slug': slug, 'page': page}
translation.activate('en') # <------- Activate language EN
return render(request, 'page.html', context)
这是因为上下文处理器正在尝试获取上下文语言,显然是None。
更新:
好的,正如knbk所说,这是1.8中的一个错误,因此您需要将其升级到新版本..
base_lang = get_language().split('-')[0]
这一行是 Django 1.8 中的错误。它作为 1.8.1:
的一部分被修复Prevented TypeError in translation functions check_for_language() and get_language_bidi() when translations are deactivated (#24569).
您应该升级到最新的 1.8.x 版本 1.8.8。在撰写本文时。这将修复此错误和其他错误。
次要版本仅包含错误修复和安全补丁,因此无论您使用的是什么主要版本,您都应该始终升级到最新的次要版本。