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What is __init__.py for?

...kages as they existed in Python 3.2 and earlier. A regular package is typically implemented as a directory containing an __init__.py file. When a regular package is imported, this __init__.py file is implicitly executed, and the objects it defines are bound to names in the package’s namespace. The...
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Running single test from unittest.TestCase via command line

... Just noticed that this works only if the method is called "test*", so unfortunately it cannot be used to occasionally run test that is "disabled" by rename – Alois Mahdal Apr 15 '13 at 12:29 ...
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Trigger a keypress/keydown/keyup event in JS/jQuery?

... You can trigger any of the events with a direct call to them, like this: $(function() { $('item').keydown(); $('item').keypress(); $('item').keyup(); $('item').blur(); }); Does that do what you're trying to do? You should probably also trigger .focus() a...
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What is the common header format of Python files?

... Its all metadata for the Foobar module. The first one is the docstring of the module, that is already explained in Peter's answer. How do I organize my modules (source files)? (Archive) The first line of each file shoud be #!/us...
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Bidirectional 1 to 1 Dictionary in C#

...turn firstToSecond.Count; } } /// <summary> /// Removes all items from the dictionary. /// </summary> public void Clear() { firstToSecond.Clear(); secondToFirst.Clear(); } } ...
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Python - Get path of root project structure

...to prevent directories with a common name, such as string, from unintentionally hiding valid modules that occur later on the module search path. In the simplest case, __init__.py can just be an empty file, but it can also execute initialization code for the package or set the __all__ variable, descr...
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How to serialize SqlAlchemy result to JSON?

...ps(e, cls=new_alchemy_encoder(), check_circular=False) This would encode all children, and all their children, and all their children... Potentially encode your entire database, basically. When it reaches something its encoded before, it will encode it as 'None'. A recursive, possibly-circular, s...
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How can I select all elements without a given class in jQuery?

... in 2019 vanillaJs: document.querySelectorAll('.foo-class:not(.bar-class):not(.foobar-class')) – Ivan Kolyhalov Oct 25 '19 at 18:05 add a comm...
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How to invoke the super constructor in Python?

In all other languages I've worked with the super constructor is invoked implicitly. How does one invoke it in Python? I would expect super(self) but this doesn't work. ...
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Search and replace in bash using regular expressions

...'s are processed in order. Also, the g flag for the expression will match all occurrences in the input. You can also pick your favorite tool using this method, i.e. perl, awk, e.g.: echo "$MYVAR" | perl -pe 's/[a-zA-Z]/X/g and s/[0-9]/N/g' This may allow you to do more creative matches... For ...