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Finding the index of an item in a list

... complete. Some caveats about list.index follow. It is probably worth initially taking a look at the documentation for it: list.index(x[, start[, end]]) Return zero-based index in the list of the first item whose value is equal to x. Raises a ValueError if there is no such item. The optional argum...
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git ignore vim temporary files

...t is the correct way to make git ignore temporary files produced by vim in all directories (either globally across the system or locally for a single project)? ...
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Oracle “(+)” Operator

..."adding NULL values if no match found". For example, "a.id=b.id(+)" means allow b.id to be NULL if there is no match with a.id. – beach Oct 26 '10 at 5:00 ...
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What's the _ underscore representative of in Swift References?

...ng, s2: String) -> String { return s1 + s2; } } When you call foo(), it is called like bar.foo("Hello", s2: "World"). But, you can override this behavior by using _ in front of s2 where it's declared. func foo(s1: String, _ s2: String) -> String{ return s1 + s2; } Then, w...
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What is the most pythonic way to check if an object is a number?

...and is not iterable" could be a good definition in some cases. But, you really need to ask yourself, what it is that you're asking that what you want to consider "a number" must definitely be able to do, and what it must absolutely be unable to do -- and check. This may also be needed in 2.6 or la...
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Check if object is file-like in Python

... It is generally not good practice to have checks like this in your code at all unless you have special requirements. In Python the typing is dynamic, why do you feel need to check whether the object is file like, rather than just usin...
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UnicodeDecodeError: 'ascii' codec can't decode byte 0xef in position 1

...;> s1 = s.decode('utf-8') >>> print s1 Traceback (most recent call last): File "<stdin>", line 1, in <module> UnicodeEncodeError: 'ascii' codec can't encode characters in position 1-5: ordinal not in range(128) >>> Consult the docs for your linux variant to disc...
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How do I get a PHP class constructor to call its parent's parent's constructor?

I need to have a class constructor in PHP call its parent's parent's (grandparent?) constructor without calling the parent constructor. ...
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Is 'switch' faster than 'if'?

Is a switch statement actually faster than an if statement? 12 Answers 12 ...
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jQuery: How can i create a simple overlay?

How can I create a really basic overlay in jQuery without UI? 7 Answers 7 ...