What is a magic number? Why do many programmers advise that they be avoided?

Jul 15, 2024 · %cd ^ SyntaxError: invalid syntax Note: The idea for this question came from an earlier question with a similar title ("Do jupyter magic commands work on VS Code?") where …

Aug 19, 2010 · Magic numbers are special value of certain variables which causes the program to behave in an special manner. For example, a communication library might take a Timeout …

The magic number comes from UNIX-type systems where the first few bytes of a file held a marker indicating the file type. Python puts a similar marker into its pyc files when it creates them.

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Jun 19, 2013 · With Mock you can mock magic methods but you have to define them. MagicMock has "default implementations of most of the magic methods.". If you don't need to test any …

Sep 27, 2023 · Using python-magic, I'm trying to guess the mime type of simple files and stumble upon this: if the json contains an empty array, the mime type returned is 'text/plain' instead of …

Jul 5, 2016 · When testing, A() returns the return_value from mock_A (a regular MagicMock, as you haven't specified anything else), which is not an instance of the class A. You need to set …

May 23, 2022 · DataBricks adds # MAGIC in front of every python notebook line Asked 3 years, 5 months ago Modified 2 years, 8 months ago Viewed 5k times

I need to get mime type for some files on windows, so i've installed python-magic (on 32-bit python 2.7.3). It depends on unix magic library. Author instructs to get regex2.dll, zlib1.dll and …