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Abstract methods in Python [duplicate]

I am having trouble in using inheritance with Python. While the concept seems too easy for me in Java yet up till now I have been unable to understand in Python which is surprising to me at least. ...
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DBMS_OUTPUT.PUT_LINE not printing

When executing the following code, it just says the procedure is completed and doesn't print the infomation i want it to (firstName, lastName) and then the other values from the select query in a table below. ...
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Can anyone explain python's relative imports?

I can't for the life of me get python's relative imports to work. I have created a simple example of where it does not function: ...
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Difference between “module.exports” and “exports” in the CommonJs Module System

On this page ( http://docs.nodejitsu.com/articles/getting-started/what-is-require ), it states that "If you want to set the exports object to a function or a new object, you have to use the module.exports object." ...
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relative path in require_once doesn't work

I have the following structure 4 Answers 4 ...
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get CSS rule's percentage value in jQuery

Let's say the rule is as follows: 12 Answers 12 ...
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Vim: How do you open another [No Name] buffer like the one on startup?

In my Vimscript program, I need to open an additional Vim buffer that is not immediately associated with a file, but which the user can save to a file of her/his choosing, just like the initial buffer called [No Name] . How can I do this? ...
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mysql - how many columns is too many?

I'm setting up a table that might have upwards of 70 columns. I'm now thinking about splitting it up as some of the data in the columns won't be needed every time the table is accessed. Then again, if I do this I'm left with having to use joins. ...
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Check OS version in Swift?

I'm trying to check system information in Swift. I figured out, that it could be achieved by code: 19 Answers ...
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Why do you have to call .items() when iterating over a dictionary in Python?

Why do you have to call items() to iterate over key, value pairs in a dictionary? ie. 2 Answers ...