keyword

I have the following class with the variables from , to and rate . from is a keyword. If I want to use it in the init method below, what's the correct way to write it? More context: The class needs the from variable explicitly as it's part of a json required by a POST endpoint written up by another developer in a different language. So changing the variable name is out of the question. class ExchangeRates(JsonAware): def __init__(self, from, to, rate): self.from = from self.to = to self.rate = rate JsonAware code: class PropertyEquality(object): def __eq__(self, other): return (isinstance

I was reading an SQL tutorial which used the keyword EXPLAIN to see how a query is executed. I tried it in SQL Server 2008 with no success. How do I get the equivalent result? I believe that the EXPLAIN keyword is an MySQL concept - the equivalent Microsoft SQL server concept is the execution plan. The simplest way of getting an execution plan is to turn on the "Show actual execution plan" menu item (in the query menu) in SQL server management studio. Alternatively you can read a more in-depth guide on execution plans here: http://www.simple-talk.com/sql/performance/execution-plan-basics/ This

Is file a keyword in python? I've seen some code using the keyword file just fine, while others have suggested not to use it and my editor is color coding it as a keyword. No, file is a builtin, not a keyword: >>> import keyword >>> keyword.iskeyword('file') False >>> import __builtin__ >>> hasattr(__builtin__, 'file') True It can be seen as an alias for open() , but it has been removed from Python 3, as the new io framework replaced it. Technically, it is the type of object returned by the open() function . 来源： https://stackoverflow.com/questions/24942358/is-file-a-keyword-in-python

Both the override specifier and final specifier were added in C++11. They differ from other specifiers added to C++11 such as constexpr and decltype , in that they are not keywords and so are available for use as identifiers: int main() { int override = 0 ; // Ok int final = 0 ; // Ok //int constexpr = 0 ; // Error } They are referred to as identifiers with special meaning , which is covered in the draft C++11 standard section 2.11 [lex.name] ( emphasis mine ): The identifiers in Table 3 have a special meaning when appearing in a certain context. When referred to in the grammar, these

What is the difference between const and final keyword in Dart? There is a post on dart's website and it explains it pretty well. Final: "final" means single-assignment: a final variable or field must have an initializer. Once assigned a value, a final variable's value cannot be changed. final modifies variables . Const: "const" has a meaning that's a bit more complex and subtle in Dart. const modifies values . You can use it when creating collections, like const [1, 2, 3], and when constructing objects (instead of new) like const Point(2, 3). Here, const means that the object's entire deep

I read here that " self Refers to the current window or form ". Self does not seem to refer to the current form in this case: <form><input type="text" onkeyup="alert(self.foo.value)" name="foo"></form> However in this case it works (referring to the window): <form><input type="text" onkeyup="alert(self.document.forms[0].foo.value)" name="foo"></form> So when would you use the self DOM property over just window ? Swift For all windows, the self and window properties of a window object are synonyms for the current window, and you can optionally use them to refer to the current window. For

I've come to recently understand that a C# 'event' really is. It isn't really anything, honestly. To sum up my findings: The event keyword is simply a modifier that only applies to delegates. So, all the 'magic' of an event are the operations of a delegate. That's it. I've read through a lot of the Microsoft documentation, but there no sentence that summarizes in that manner so succinctly. To continue with my findings, delegate, class, and struct are all on the same 'level'. They are ways to define a 'object'. I don't mean 'object' as in the type, but an encapsulated concept of 'something'.

I'm looking for a Java library to extract keywords from a block of text. The process should be as follows: stop word cleaning -> stemming -> searching for keywords based on English linguistics statistical information - meaning if a word appears more times in the text than in the English language in terms of probability than it's a keyword candidate. Is there a library that performs this task? sp00m Here is a possible solution using Apache Lucene . I didn't use the last version but the 3.6.2 one , since this is the one I know the best. Besides the /lucene-core-x.x.x.jar , don't forget to add