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I have a private method def __pickSide(self): in a parent class that I would like to override in the child class. However, the child class still calls the inherited def __pickSide(self): . How can I override the function? The child class's function name is exactly the same as the parent's function name. Let's look at the easiest example: from dis import dis class A(object): def __pick(self): print "1" def doitinA(self): self.__pick() class B(A): def __pick(self): print "2" def doitinB(self): self.__pick() b = B() b.doitinA() # prints 1 b.doitinB() # prints 2 dis(A.doitinA) print dis(B.doitinB)

Is it not possible that foreign key(single column) in a child table references to a parent key which has some duplicate values? By the SQL standard, a foreign key must reference either the primary key or a unique key of the parent table. If the primary key has multiple columns, the foreign key must have the same number and order of columns. Therefore the foreign key references a unique row in the parent table; there can be no duplicates. Re your comment: If T.A is a primary key, then no you can't have any duplicates. Any primary key must be unique and non-null. Therefore if the child table has

How would I organize my python imports so that I can have a directory like this. project | \ | __init__.py | src | \ | __init__.py | classes.py | test \ __init__.py tests.py And then inside /project/test/tests.py be able to import classes.py I've got code looking like this in tests.py from .. src.classes import( scheduler db ) And am getting errors of SystemError: Parent module '' not loaded, cannot perform relative import Anyone know what to do? Python adds the folder containing the script you launch to the PYTHONPATH, so if you run python test/tests.py Only the folder test is added to the

I have a program that uses fork() to create a child process. I have seen various examples that use wait() to wait for the child process to end before closing, but I am wondering what I can do to simply check if the file process is still running. I basically have an infinite loop and I want to do something like: if(child process has ended) break; How could I go about doing this? Use waitpid() with the WNOHANG option. int status; pid_t result = waitpid(ChildPID, &status, WNOHANG); if (result == 0) { // Child still alive } else if (result == -1) { // Error } else { // Child exited } EDIT: If you

'I want to bind the Height property of the RichTextBox to the Height Property of the GridView`s Row. How can I do that? I do not know how to get the Row's Height as I can not access the Row in xaml what I would like to do. The Ancestor type should be GridViewHeaderRow , but I do not know its level... EDIT: <my:RadGridView Height="524" RowHeight="300" ItemsSource="{Binding Lessons}" AutoGenerateColumns="False" Name="dataGrid1" VerticalAlignment="Top" SelectionMode="Single" CanUserSortColumns="False" IsFilteringAllowed="False"> <my:RadGridView.Columns> <my:GridViewDataColumn DataMemberBinding="

I want to find the nth parent element of an given element and access the attributes of parent. <div id='parent1'><br/> <div id='parent2'><br/> <span><p id='element1'>Test</p></span><br/> </div><br/> <div id='parent3'><br/> <span><p id='element2'>Test</p></span><br/> </div><br/> </div> I want to access the 3rd parent element of element1 without using $('#element1').parent().parent().parent() Any help would be appreciated You can use .parents() and .eq() : $('#element1').parents().eq(2); http://jsfiddle.net/infernalbadger/4YmYt/ gion_13 You could make a little plugin to take care of that: $.fn

I have a general question (I'm not all to familiar with html). The following use of the slash I have discovered points to a sub-directory, in this case for Images: /Image/my_Image.png Is there an html equivalent for pointing to a parent directory? ../ will give you one level higher parent directory. You can use as much as you want to go higher level parents like ../../ ../Image/my_Image.png will be Image folder in parent directory Single dot = current directory, double dot is parent directory... ./ = current ../ = parent So let's say you have a style rule for an image in a CSS file called