现在我正在探索Polymer-project 1.0,任务是JSON重复获取和打印输出.
但无论我尝试下面的错误即将到来,即使我试过Github pages也在终端给我同样的错误响应
错误
XMLHttpRequest无法加载https://ajax.googleapis.com/ajax/services/search/news?v=1.0&rsz=8&pz=1&cf=all&ned=in&hl=en&topic=tc.请求的资源上不存在"Access-Control-Allow-Origin"标头.因此,不允许访问" http://rajasimon.github.io ".
没有进入主题和设计材料设计...我想要的功能将首先工作.所以我在下面写了代码......
的index.html
<iron-ajax
auto
url="https://ajax.googleapis.com/ajax/services/search/news?v=1.0&rsz=8&pz=1&cf=all&ned=in&hl=en&topic=tc"
handle-as="json"
last-response="{{ajaxResponse}}"></iron-ajax>
<template is="dom-repeat" items="{{ajaxResponse.responseData.results}}">
<paper-material elevation="1" class="paper-font-body2">
<h1>{{item.title}}</h1>
<iron-image src="[[item.image.url]]" style="width:800px; height:450px; background-color: lightgray;" sizing="cover" preload fade></iron-image>
<p>{{item.content}}</p>
</paper-material>
</template>
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启用
为了调试我安装了谷歌Chrome应用程序命名Allow-Control-Allow-Origin: *然后上面的代码开始工作...

即使我尝试使用铁-ajax演示也会给出相同的结果.这里发生了什么事.我是宇宙中接收此错误的人吗?
我是django和python的新手.在url映射到视图期间,我遇到以下错误:TypeError:在include()的情况下,view必须是可调用的或list/tuple.
网址.py代码: -
from django.conf.urls import url
from django.contrib import admin
urlpatterns = [
url(r'^admin/', admin.site.urls),
url(r'^posts/$', "posts.views.post_home"), #posts is module and post_home
] # is a function in view.
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views.py代码: -
from django.shortcuts import render
from django.http import HttpResponse
# Create your views here.
#function based views
def post_home(request):
response = "<h1>Success</h1>"
return HttpResponse(response)
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追溯
编译到设备(Iphone 5s)时,我收到以下编译错误:
最后部分布局:
__TEXT/__text addr=0x1000044B4, size=0x0AC5D808, fileOffset=0x000044B4, type=1
...
ld: b(l) ARM64 branch out of range (180743200 max is +/-128MB): from __ZN10ClassNameEv (0x100004560) to __Unwind_Resume@0x00000000 (0x10AC6351C)
in '__ZN10ClassNameC2Ev' from /Users/Name/Desktop/Projectpath/Debug-iphoneos/Project.build/Objects-normal/arm64/ClassName.o for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
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"Valid Architectures"是"armv7 armv7s arm64"。
"Build Active Architecture Only"是NO。
问题:你知道我能做些什么吗?
我正在尝试使用django应用程序在Heroku上工作.
我一直收到这个错误:
Running `./manage.py migrate` attached to terminal... up, run.5743
Traceback (most recent call last):
File "./manage.py", line 10, in <module>
execute_from_command_line(sys.argv)
File "/app/.heroku/python/lib/python3.4/site-packages/django/core/management/__init__.py", line 385, in execute_from_command_line
utility.execute()
File "/app/.heroku/python/lib/python3.4/site-packages/django/core/management/__init__.py", line 345, in execute
settings.INSTALLED_APPS
File "/app/.heroku/python/lib/python3.4/site-packages/django/conf/__init__.py", line 46, in __getattr__
self._setup(name)
File "/app/.heroku/python/lib/python3.4/site-packages/django/conf/__init__.py", line 42, in _setup
self._wrapped = Settings(settings_module)
File "/app/.heroku/python/lib/python3.4/site-packages/django/conf/__init__.py", line 94, in __init__
mod = importlib.import_module(self.SETTINGS_MODULE)
File "/app/.heroku/python/lib/python3.4/importlib/__init__.py", line 109, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 2254, in _gcd_import
File "<frozen …Run Code Online (Sandbox Code Playgroud) 有没有办法从 VSCODE 编辑器运行 Django 项目?
目前我使用 Windows CMD 来运行我的项目。每次当我在 VSCODE 上点击“运行”按钮时,它都不会运行该项目。
在 pyCharm 上,我们可以将“runserver”添加到其脚本参数配置中。VSCode 上有类似的东西吗?
更新
我在 VSCODE 终端上得到这个:
Type 'manage.py help <subcommand>' for help on a specific subcommand.
Available subcommands:
[auth]
changepassword
createsuperuser
[contenttypes]
remove_stale_contenttypes
[django]
check
compilemessages
createcachetable
dbshell
diffsettings
dumpdata
flush
inspectdb
loaddata
makemessages
makemigrations
migrate
sendtestemail
shell
showmigrations
sqlflush
sqlmigrate
sqlsequencereset
squashmigrations
startapp
startproject
test
testserver
[sessions]
clearsessions
[staticfiles]
collectstatic
findstatic
runserver
[Done] exited with code=0 in 9.449 seconds
Run Code Online (Sandbox Code Playgroud) 我是django的新手。在我的模板中,我需要当前日期作为日期格式,而以下代码返回字符串:
<p>{% now "Y-m-d" as date %}</p>
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我想以2018-12-17格式的日期作为日期而不是字符串。反正有这样做吗?
恶作剧
在我的工作代码中,我有这个
import paramiko
parent=os.path.split(dir_local)[1]
for walker in os.walk(parent):
try:
self.sftp.mkdir(os.path.join(dir_remote,walker))
except:
pass
for file in walker[2]:
sftp.put(os.path.join(walker[0],file),os.path.join(dir_remote,walker[0],file))
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现在显示的错误是
Trying ssh-agent key 5e08bb83615bcc303ca84abe561ef0a6 ... success
Caught exception: <type 'exceptions.IOError'>: [Errno 2] Directory does not exist.
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打印walker显示该文件夹中的所有文件,但我不知道为什么该文件夹不会复制到sftp服务器
我正在尝试建立一个聊天机器人.所以我安装了chatterbot包.python代码如下:
from chatterbot import TalkWithCleverbot
talk = TalkWithCleverbot()
talk.begin()
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但我收到以下错误:
Traceback (most recent call last):
File "C:\Users\JERIN\Desktop\bottobot.py", line 2, in <module>
talk = TalkWithCleverbot()
File "C:\Python27\lib\site-packages\chatterbot\__init__.py", line 157, in __init__
super(TalkWithCleverbot, self).__init__()
File "C:\Python27\lib\site-packages\chatterbot\__init__.py", line 4, in __init__
from jsondb.db import Database
ImportError: No module named db
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我尝试安装jsondb和db软件包,但没有好处.请帮我
SOCIAL_AUTH_PIPELINE = (
'social.pipeline.social_auth.associate_by_email',
)
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通过使用上面的代码settings.py我可以避免...
(1062, "Duplicate entry 'example@example.com' for key 'email'")错误信息。
但我在网上搜索,发现这个方便的代码可以放入exception所需的 html 页面中:
[代码1]: #backends.py
class MySocialAuthExceptionMiddleware(SocialAuthExceptionMiddleware):
def process_exception(self, request, exception):
msg = None
if #no duplicate email:
return HttpResponse("# catched exception")
else:
# processing msg here
return render_to_response(# html, {msg}, context)
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# 设置.py
MIDDLEWARE_CLASSES = (
'frontend.backends.MySocialAuthExceptionMiddleware'
)
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我的问题是solved基于上面的代码。但之前我使用以下代码使用了另一种功能,它与上述概念完全不同。
[代码2]:
def function(request):
#actual code here
return HttpResponse('msg here')
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但是在运行上面的代码时,我收到了类似的错误消息,
tuple index out of range在这个MySocialAuthExceptionMiddleware..
实际上,对于上述代码来说,这不是正确的错误消息。该消息与“ [Code …
django ×5
python ×4
python-2.7 ×2
ajax ×1
arm64 ×1
chatterbot ×1
date ×1
django-views ×1
heroku ×1
ios ×1
paramiko ×1
polymer ×1
polymer-1.0 ×1
python-3.x ×1
sftp ×1
ssh ×1
xcode ×1