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Why does the C++ map type argument require an empty constructor when using []?

..., among other things, they should be default-constructible. Without this (and others requirements) it would be needlessly hard to implement the various internal copy/move/swap/compare operations on the data structures with which STL containers are implemented. Upon reference to the C++ Standard, ...
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datetime dtypes in pandas read_csv

...ype to be set for read_csv as csv files can only contain strings, integers and floats. Setting a dtype to datetime will make pandas interpret the datetime as an object, meaning you will end up with a string. Pandas way of solving this The pandas.read_csv() function has a keyword argument called p...
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Python 3 ImportError: No module named 'ConfigParser'

...n't work, there is OurSQL, MySQL Connector/Python, a port of MySQL-Python, and others. – Abe Karplus Dec 30 '12 at 18:34 ...
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Passing current scope to an AngularJS Service

... @Caio Cunha Could you expand on why it's not a good idea to pass a scope? I'm having exactly this issue, I want to add some stuff to $scope via a call to a service using an async executeSql() function. Looking into 3 options (1) use a callback on the...
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LINQ where vs takewhile

... TakeWhile stops when the condition is false, Where continues and find all elements matching the condition var intList = new int[] { 1, 2, 3, 4, 5, -1, -2 }; Console.WriteLine("Where"); foreach (var i in intList.Where(x => x <= 3)) Console.WriteLine(i); Console.WriteLine("Take...
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Non-alphanumeric list order from os.listdir()

...y containing the following subdirectories: run01, run02, ... run19, run20, and then I generate a list from the following command: ...
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Sending Email in Android using JavaMail API without using the default/built-in app

I am trying to create a mail sending application in Android. 25 Answers 25 ...
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How can I remove a flag in C?

There is a variable that holds some flags and I want to remove one of them. But I don't know how to remove it. 3 Answers ...
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Is there a Subversion command to reset the working copy?

Is there a single Subversion command that would “reset” a working copy exactly to the state that’s stored in the repository? Something like git reset --hard or (ha, hard Git reset does not remove unversioned files either!) rm -rf wc && svn co <url> wc . ...
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Is it possible to use JS to open an HTML select to show its option list? [duplicate]

... Unfortunately there's a simple answer to this question, and it's "No" share | improve this answer | follow | ...