很简单.我有一个Python列表,我将传递给Django模板.
我可以使用专门访问此列表中的第一项
{{ thelist|first }}
但是,我也想访问该项目的属性...理想情况下,您认为它看起来像这样:
{{ thelist|first.propertyName }}
但唉,事实并非如此.
有没有任何模板解决方案,或者我只是发现自己传递一个额外的模板变量...
我有一个django管理界面,在模型列表中我想要一个自定义列,它将是一个使用其中一个字段值的超链接.基本上,模型的一个字段是一个url,我希望该列在可点击的超链接中包含该URL.此链接需要在其前面添加其他URL作为模型字段中的相对路径.
无论如何我可以写入tempfile并将其包含在命令中,然后关闭/删除它.我想执行命令,例如:some_command/tmp/some-temp-file.
提前谢谢了.
import tempfile
temp = tempfile.TemporaryFile()
temp.write('Some data')
command=(some_command temp.name)
temp.close()
我使用easy_install来安装pip,pip来安装django,virtualenv和virtualenvwrapper.
几周之后我刚刚回到它并且django似乎不再工作了,但更令人担心的是我无法再次启动该过程,因为easy_install返回以下错误:
Traceback (most recent call last):
File "/usr/bin/easy_install-2.7", line 10, in <module>
load_entry_point('setuptools==0.6c12dev-r88846', 'console_scripts', 'easy_install')()
File "/Library/Python/2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 318, in load_entry_point
File "/Library/Python/2.7/site-packages/setuptools-0.6c11-py2.7.egg/pkg_resources.py", line 2220, in load_entry_point
ImportError: Entry point ('console_scripts', 'easy_install') not found
经过一个愉快的狩猎之夜后,我很难过如何解决这个问题.
我想把一个句子分成一个单词列表.
对于英语和欧洲语言,这很简单,只需使用split()
>>> "This is a sentence.".split()
['This', 'is', 'a', 'sentence.']
但是我还需要处理不使用空格作为单词分隔符的中文等语言的句子.
>>> u"??????".split()
[u'\u8fd9\u662f\u4e00\u4e2a\u53e5\u5b50']
显然这不起作用.
如何将这样的句子分成单词列表？
更新:
到目前为止,答案似乎表明这需要自然语言处理技术,并且中文中的单词边界是模糊的.我不确定我明白为什么.中文中的单词边界对我来说非常明确.每个中文单词/字符都有一个相应的unicode,并在屏幕上显示为单独的单词/字符.
那么模糊性来自何处.正如您在我的Python控制台输出中所看到的,Python可以告诉我的例句由5个字符组成:
? - u8fd9
? - u662f
? - u4e00
? - u4e2a
? - u53e5
? - u5b50
所以很明显Python告诉单词/字符边界没有问题.我只需要列表中的那些单词/字符.
使用Python v2,我让用户在字符串中输入金额,如下所示:
RawPurchaseAmount = raw_input("Please enter purchase amount: ")
PurchaseAmount = float(RawPurchaseAmount.strip().lstrip("$"))
这将删除输入前面的任何空白区域,如果输入了$符号,则删除$符号.
如果输入逗号符号,有没有办法删除它？IE:$ 10,000.00变为10000.00
谢谢你的帮助.
我正在使用OPEN-OFFICE工作并保存CSV.我正在使用逗号分隔符和'"'.但是,在保存CSV时,所有数字都没有被封装.我如何强制Open-Office将数字视为文本并将它们封装起来.示例:
"store","website","attribute_set","type","sku","name","price","categories","description","qty","sizet","is_in_stock","status","visibility","tax_class_id"
"admin","base","test","simple","T010013-012","Test12","12","test/test","Desc12",12,"S","1","Enabled","Catalog, Search","Taxable Goods"
"admin","base","test","simple","T010013-013","Test13","13","test/test","Desc13",13,"M","1","Enabled","Catalog, Search","Taxable Goods"
"admin","base","test","simple","T010013-014","Test14","14","test/test","Desc14",14,"L","1","Enabled","Catalog, Search","Taxable Goods"
"admin","base","test","simple","T010013-015","Test15","15","test/test","Desc15",15,"XL","1","Enabled","Catalog, Search","Taxable Goods"
"admin","base","test","simple","T010013-016","Test16","16","test/test","Desc16",16,"XXL","1","Enabled","Catalog, Search","Taxable Goods"
"admin","base","test","configurable","T010013","TestParent","5","test/test","DescParent","30","","1","Enabled","Catalog, Search","Taxable Goods"
谢谢您的帮助.PS:我正在为Magento使用MAGMI脚本.正在上传产品
我在Aptana框架上的Jruby编码时遇到问题; 当我运行rails服务器时,它会抛出"编组流中的无效编码",我不知道如何解决？
它在"<%= stylesheet_link_tag%>和<%= javascript_include_tag%>"上引发了错误.在这里我给出了一段代码,请帮助解决此问题:
<title><%=content_for?(:title)?yield(:title) : "MyApp"%></title>
<meta name="description" content="">
<meta name="author" content="">
<%=stylesheet_link_tag "application", :media => "all"%>
<%=javascript_include_tag "application"%>
<%=csrf_meta_tags%>
<%=yield(:head)%>
我试图import random在python中使用该语句,但它似乎没有任何方法可供使用.
我错过了什么吗？
我正在使用Kohana v3和ORM,我有两个模型,Model_A并Model_B通过一个数据透视表与"has_many"相关,该数据表有一个额外的列.我可以使用add()函数的第三个参数在数据透视表中保存该列中的数据,但我无法弄清楚如何使用ORM读取该列.
有任何想法吗？提前致谢.