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SQLAlchemy: cascade delete
...n that were "removed" from the parent, even if the parent is not deleted)
EDIT: just found out: if you really want to define the relationship on the Child class, you can do so, but you will have to define the cascade on the backref (by creating the backref explicitly), like this:
parent = relation...
Sorting Python list based on the length of the string
...tells the sort method to order based on whatever the key function returns.
EDIT: Thanks to balpha and Ruslan below for pointing out that you can just pass len directly as the key parameter to the function, thus eliminating the need for a lambda:
xs.sort(key=len)
And as Ruslan points out below, you ...
[精华] VC中BSTR、Char和CString类型的转换 - C/C++ - 清泛网 - 专注C/C++及内核技术
..."This is a test";
或在已定义Unicode应的用程序中
TCHAR * p = _T("This is a test");
或
LPTSTR p = _T("This is a test");
CString theString = chArray;
theString.format(_T("%s"), chArray);
theString = p;
2、CString转换成char*
若将CString类转换成char*(LPSTR)类型，常...
Python: Get relative path from comparing two absolute paths
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edited May 23 '17 at 10:31
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Omitting all xsi and xsd namespaces when serializing an object in .NET?
... }
Console.WriteLine("{0}",builder.ToString());
Credit for this to Oleg Tkachenko.
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How do I check if I'm running on Windows in Python? [duplicate]
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edited Feb 19 '19 at 14:08
Joel
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What is the difference between “text” and new String(“text”)?
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edited May 23 '17 at 11:54
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answered Jun 16 '10 a...
“x not in y” or “not x in y”
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edited May 24 at 21:44
wjandrea
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Why declare unicode by string in python?
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edited Jul 3 '10 at 5:51
answered Jul 3 '10 at 4:34
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Android SDK installation doesn't find JDK
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edited May 1 '18 at 8:27
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