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Checking if a string can be converted to float in Python

...False print(isfloat("12.34.56")) False Two dots not allowed. print(isfloat("#56")) False print(isfloat("56%")) False print(isfloat("0E0")) True print(isfloat("x86E0")) False print(isfloat("86-5")) ...
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How to len(generator()) [duplicate]

... Generators have no length, they aren't collections after all. Generators are functions with a internal state (and fancy syntax). You can repeatedly call them to get a sequence of values, so you can use them in loop. But they don't contain any elements, so asking for the length of ...
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What is __stdcall?

... __stdcall is the calling convention used for the function. This tells the compiler the rules that apply for setting up the stack, pushing arguments and getting a return value. There are a number of other calling conventions, __cd...
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Method Resolution Order (MRO) in new-style classes?

...ject'>) with A forced to come in resolution order only once and after all of its subclasses, so that overrides (i.e., C's override of member x) actually work sensibly. It's one of the reasons that old-style classes should be avoided: multiple inheritance with "diamond-like" patterns just doesn...
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Map vs Object in JavaScript

...stored at a key. Because of this, Objects have been used as Maps historically; however, there are important differences between Objects and Maps that make using a Map better. An Object has a prototype, so there are default keys in the map. However, this can be bypassed using map = Object....
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What is the best CSS Framework and are they worth the effort?

...um I've came across the world of CSS Frameworks. The one I've been specifically looking at is BluePrint . I was wondering if anyone else had come across CSS frameworks, suggest which is the best and if they are worth the effort? ...
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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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How to get all registered routes in Express?

... web application built using Node.js and Express. Now I would like to list all registered routes with their appropriate methods. ...
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PyLint, PyChecker or PyFlakes? [closed]

...plus for everybody, but I like it ;-) Cons of PyLint: Some rules are really strict. I know that you can change it and that the default is to match PEP8, but is it such a crime to write 'for x in seq'? Apparently yes because you can't write a variable name with less than 3 letters. I will change ...
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Finding all possible combinations of numbers to reach a given sum

How would you go about testing all possible combinations of additions from a given set N of numbers so they add up to a given final number? ...