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The difference between Classes, Objects, and Instances
What is a class, an object and an instance in Java?
16 Answers
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Copy file or directories recursively in Python
Python seems to have functions for copying files (e.g. shutil.copy ) and functions for copying directories (e.g. shutil.copytree ) but I haven't found any function that handles both. Sure, it's trivial to check whether you want to copy a file or a directory, but it seems like a strange omission.
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Is there a way to list pip dependencies/requirements?
...The accepted answer is no longer relevant for more current versions of pip and does not give an immediate answer without perusing multiple comments so I am providing an updated answer.
This was tested with pip versions 8.1.2, 9.0.1, 10.0.1, and 18.1.
To get the output without cluttering your curre...
Regular expression to match standard 10 digit phone number
I want to write a regular expression for a standard US type phone number that supports the following formats:
20 Answers
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Difference between Xcode version (CFBundleShortVersionString) and build (CFBundleVersion)
...you might tack something else on to the CFBundleVersion, maybe another dot and integer.
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Serving gzipped CSS and JavaScript from Amazon CloudFront via S3
I've been looking for ways of making my site load faster and one way that I'd like to explore is making greater use of Cloudfront.
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How can I ensure that a division of integers is always rounded up?
...you try to do a "clever" trick, odds are good that you've made a mistake. And when a flaw is found, changing the code to fix the flaw without considering whether the fix breaks something else is not a good problem-solving technique. So far we've had I think five different incorrect integer arithme...
How to determine if a number is a prime with regex?
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You said you understand this part, but just to emphasize, the String generated has a length equal to the number supplied. So the string has three characters if and only if n == 3.
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The first part of the regex says, "any character, zero or o...
How to extract img src, title and alt from html using php? [duplicate]
...e a page where all images which reside on my website are listed with title and alternative representation.
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Django gives Bad Request (400) when DEBUG = False
... I change DEBUG to False in the settings file, then the server stopped and it gives the following error on the command prompt:
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