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In Python, how do you convert seconds since epoch to a `datetime` object?
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How to run test cases in a specified file?
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There are two ways. The easy one is to use the -run flag and provide a pattern matching names of the tests you want to run.
Example:
$ go test -run NameOfTest
See the docs for more info.
The other way is to name the specific file, containing the tests you want to run:
$ go test foo_t...
When to create a new app (with startapp) in Django?
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James Bennett has a wonderful set of slides on how to organize reusable apps in Django.
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Haskell error parse error on input `='
...utorial).
This answer illustrates this point with an example, and may provide more working insight into the nature of IO and ghci.
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What is & used for
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My Source: http://htmlhelp.com/tools/validator/problems.html#amp
Another common error occurs when including a URL which contains an
ampersand ("&"):
This is invalid:
a href="foo.cgi?chapter=1&section=2&copy=3&lang=en"
Explanation:
...
How to convert java.sql.timestamp to LocalDate (java8) java.time?
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The accepted answer is not ideal, so I decided to add my 2 cents
timeStamp.toLocalDateTime().toLocalDate();
is a bad solution in general, I'm not even sure why they added this method to the JDK as it makes things really confusing by doing an implici...
SQL Server - transactions roll back on error?
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DECLARE @ErrorState INT = ERROR_STATE()
-- Use RAISERROR inside the CATCH block to return error
-- information about the original error that caused
-- execution to jump to the CATCH block.
RAISERROR (@ErrorMessage, @ErrorSeverity, @ErrorState);
END CATCH
...
How can I merge two commits into one if I already started rebase?
...s, a was the first commit, then b, and finally c. After committing c we decide to squash b and c together:
(Note: Running git log pipes its output into a pager, less by default on most platforms. To quit the pager and return to your command prompt, press the q key.)
Running git rebase --interactiv...
Run class in Jar file
...e directory where myJar.jar file is and that myClass has a public static void main() method on it:
You use the following command line:
java -cp ./myJar.jar myClass
Where:
myJar.jar is in the current path, note that . isn't in the current path on most systems. A fully qualified path is preferre...
What is the difference between Lisp-1 and Lisp-2?
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