Python Connect Sql Server Without Odbc

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How do I declare custom exception classes in modern Python My primary goal is to follow whatever standard other exception classes have so that for instance any extra string I

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Why is it better to use my dict keys over iterating directly over the dictionary Iteration over a dictionary is clearly documented as yielding keys It appears you had Python 2

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How can I list all files of a directory in Python and add them to a list

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When you use for item in o for some iterable object o Python calls iter o and expects an iterator object as the return value An iterator is any object which implements a next or next in

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Is there a way in Python to list all installed packages and their versions I know I can go inside python Lib site packages and see what files and directories exist but I find this very awkward

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32 My environment Ubuntu 18 04 LTS Bionic Beaver also tried on Ubuntu 19 04 Disco Dingo I use need Python 3 3 6 8 installed I need cv2 which is a model of

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How do I add a new key to an existing dictionary It doesn t have an add method