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How to change a git submodule to point to a subfolder?

...eated a submodule out of the boto project . Then, I discovered that I actually need only a subset of this project - specifically, the boto folder. ...
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How to get the top 10 values in postgresql?

...y As @Raphvanns pointed out, this will give you the first 10 rows literally. To remove duplicate values, you have to select distinct rows, e.g. select distinct * from scores order by score desc fetch first 10 rows only SQL Fiddle ...
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Replace None with NaN in pandas dataframe

...beware when you run df.replace([None], np.nan, inplace=True), this changed all datetime objects with missing data to object dtypes. So now you may have broken queries unless you change them back to datetime which can be taxing depending on the size of your data. – Doubledown ...
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ASP.NET web.config: configSource vs. file attributes

...).aspx Using the Configuration.AppSettings.Settings.Add API will result in all settings being merged back into the main .config on a Configuration.Save call. since .NET 1.1 Exception is not thrown if file does not exist. configSource attribute can apply to most sections of a configuration file, ...
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How to display the current year in a Django template?

What is the inbuilt template tag to display the present year dynamically. Like "2011" what would be the template tag to display that? ...
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What's the difference between the four File Results in ASP.NET MVC

... FileResult is an abstract base class for all the others. FileContentResult - you use it when you have a byte array you would like to return as a file FilePathResult - when you have a file on disk and would like to return its content (you give a path) FileStreamRes...
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NSLog/printf specifier for NSInteger?

... z and t modifiers to handle NSInteger and NSUInteger without warnings, on all architectures. You want to use %zd for signed, %tu for unsigned, and %tx for hex. This information comes courtesy of Greg Parker. Original answer: The official recommended approach is to use %ld as your specifier, a...
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How to integrate nodeJS + Socket.IO and PHP?

...our project, like realtime notifications, chat, ... And you want to manage all the other stuff with PHP, because it is probably more easy for you (and you can take advantage of the existing frameworks, like CodeIgniter or Symfony). ...
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Looking for a clear definition of what a “tokenizer”, “parser” and...

... A tokenizer breaks a stream of text into tokens, usually by looking for whitespace (tabs, spaces, new lines). A lexer is basically a tokenizer, but it usually attaches extra context to the tokens -- this token is a number, that token is a string literal, this other token is a...
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How does Activity.finish() work in Android?

Could someone provide a description of what happens when an Activity calls its finish() method? 4 Answers ...