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How to write a scalable Tcp/Ip based server

...he best bet, using the Asynchronous sockets. This meant that clients not really doing anything actually required relatively little resources. Anything that does occur is handled by the .net thread pool. I wrote it as a class that manages all connections for the servers. I simply used a list to ho...
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How to validate an e-mail address in swift?

...s quite funny that ............ as well as (1) the regex being utterly, totally incorrect (2) the regex (even within the context of what it's trying to do) has major errors (3) the Swift is wrong (4) even setting that aside, the style is totally wrong (5) not that it matters given all the rest but i...
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TypeError: method() takes 1 positional argument but 2 were given

...- it's just that the first one is implicit, from the point of view of the caller. This is because most methods do some work with the object they're called on, so there needs to be some way for that object to be referred to inside the method. By convention, this first argument is called self inside ...
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Resumable downloads when using PHP to send the file?

...e first thing you need to do is to send the Accept-Ranges: bytes header in all responses, to tell the client that you support partial content. Then, if request with a Range: bytes=x-y header is received (with x and y being numbers) you parse the range the client is requesting, open the file as usua...
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Is there a way to crack the password on an Excel VBA Project?

...y best to explain how it works - please excuse my English. The VBE will call a system function to create the password dialog box. If user enters the right password and click OK, this function returns 1. If user enters the wrong password or click Cancel, this function returns 0. After the dialog bo...
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Pass a parameter to a fixture function

... through the tester fixture. I had a similar problem--I have a fixture called test_package, and I later wanted to be able to pass an optional argument to that fixture when running it in specific tests. For example: @pytest.fixture() def test_package(request, version='1.0'): ... request....
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Multiple variables in a 'with' statement?

...textlib.nested, this guarantees that a and b will have their __exit__()'s called even if C() or it's __enter__() method raises an exception. You can also use earlier variables in later definitions (h/t Ahmad below): with A() as a, B(a) as b, C(a, b) as c: doSomething(a, c) ...
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Most Pythonic way to provide global configuration variables in config.py? [closed]

...a few years old, but I'm a beginner and I think this config file is essentially what I am looking for (maybe too advanced), and I would like to understand it better. Do I just pass initialize ConfigHolder with a dict of configs I'd like to set and pass between modules? – Jinx ...
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How to run a program without an operating system?

How do you run a program all by itself without an operating system running? Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU? ...
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Concatenating two one-dimensional NumPy arrays

...smetic than substantial, but it's good when the API is consistent (e.g. if all the numpy functions that take variable length argument lists require explicit sequences). – Jim K. Aug 24 '16 at 20:43 ...