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`staticmethod` and `abc.abstractmethod`: Will it blend?

... class abstractstatic(staticmethod): __slots__ = () def __init__(self, function): super(abstractstatic, self).__init__(function) function.__isabstractmethod__ = True __isabstractmethod__ = True class A(object): __metaclass__ = abc.AB...
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How to implement a ConfigurationSection with a ConfigurationElementCollection

... The previous answer is correct but I'll give you all the code as well. Your app.config should look like this: <?xml version="1.0" encoding="utf-8" ?> <configuration> <configSections> <section name="ServicesSection" type="RT.Core.Config.Servic...
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How to check if an object is a list or tuple (but not string)?

...quence; otherwise, if it is indexable or iterable, it's a sequence: def is_sequence(arg): return (not hasattr(arg, "strip") and hasattr(arg, "__getitem__") or hasattr(arg, "__iter__")) def srepr(arg): if is_sequence(arg): return '<' + ", ".join(srepr(x) f...
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How to store int[] array in application Settings

.... And requires no additional functions or wrappers. The thing is, that VS allows to serialize int[] type by default in the settings file - it just doesn't allow you to select it by default. So, create a setting with desired name (e.g. SomeTestSetting) and make it of any type (e.g. string by default...
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Why does HTML5 form-validation allow emails without a dot?

... I wonder when the last time someone actually sent an email to localhost! – Matthew Lock May 19 '17 at 3:14 2 ...
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Why does @foo.setter in Python not work for me?

...operty def x(self): print 'called getter' return self._x @x.setter def x(self, value): print 'called setter' self._x = value It works: >>> k = testDec() >>> k.x called getter Traceback (most recent call last): File "<stdin>"...
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How to quickly check if folder is empty (.NET)?

... There is a new feature in Directory and DirectoryInfo in .NET 4 that allows them to return an IEnumerable instead of an array, and start returning results before reading all the directory contents. What's New in the BCL in .NET 4 Beta 1 Directory.EnumerateFileSystemEntries method overloads ...
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How to print a groupby object

...like a bug to me. I created an issue. But a groupby operation doesn't actually return a DataFrame sorted by group. The .head() method is a little misleading here -- it's just a convenience feature to let you re-examine the object (in this case, df) that you grouped. The result of groupby is separat...
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libunwind链接时报错:undefined reference to `_Ux86_64_init_local\' - ...

libunwind链接时报错:undefined reference to `_Ux86_64_init_local'编译安装libunwind后,代码编译链接时报错:undefined reference to `_Ux86_64_init_local& 39;,链接选项加了 -lunwind,仍然报错。原因:编译出来的libunwind拆分成了很多个 编译安装libunwi...
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Load multiple packages at once

...t retyping the require command over and over? I've tried three approaches all of which crash and burn. 10 Answers ...