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pip installing in global site-packages instead of virtualenv
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I had this problem too. Calling pip install <package_name> from the /bin directory within my Python 3.3 virtual environment on my Mavericks Mac caused the Python package to be installed in the Python 2.7 global site packages directory. This w...
Defining a function with multiple implicit arguments in Scala
...on are able to produce the basic implicit (String,Int) Tuples
implicit def idis(implicit is: String, ii: Int): (String,Int)= (is,ii)
implicit def idi(s: String)(implicit ii: Int): (String,Int)= (s,ii)
// The basic implicit values for both underlying parameters
implicit val iString = " world! "
impl...
Laravel Eloquent: Ordering results of all()
I'm stuck on a simple task.
I just need to order results coming from this call
9 Answers
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How do I write a correct micro-benchmark in Java?
...se (or final reporting phase), unless you are testing class loading specifically (and in that case load only the test classes). Rule 2 is your first line of defense against such effects.
Rule 5: Be aware of deoptimization and recompilation effects. Do not take any code path for the first time in th...
String strip() for JavaScript? [duplicate]
...) to String(this).replace(...) or ('' + this).replace(...); this allows to call() or apply() the function to non-string values
– Christoph
Sep 13 '09 at 19:14
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What are the differences between numpy arrays and matrices? Which one should I use?
...ss of ndarray which overrides special methods like __mul__. matrix.__mul__ calls np.dot. So there is code reusage here. Instead of performing fewer checks, using matrix*matrix requires an extra function call. So the advantage of using matrix is purely syntactic, not better performance.
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Insert results of a stored procedure into a temporary table
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You only get one INSERT INTO EXEC per call stack. SpGetRecords and any other proc it calls may not use this strategy in their own code. This can surprise maintainers of SpGetRecords.
– Matt Stephenson
Apr 9 '14 at 5:41
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Multiple ModelAdmins/views for same model in Django admin
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Its also a good idea to change the default manager instead of the ModelAdmin queryset. So behaviour of the proxy model is consistent even outside the admin.
– bjunix
Mar 22 '10 at 11:08
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Pointer vs. Reference
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I really think you will benefit from establishing the following function calling coding guidelines:
As in all other places, always be const-correct.
Note: This means, among other things, that only out-values (see item 3) and values passed by value (see item 4) can lack the const specifier.
On...
Is there a Python Library that contains a list of all the ascii characters?
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Remember also that in Python 3 you should call range(127), since range was removed and xrange re-named. Also, to get Unicode characters in Python 2 you should call unichr(i) but in Python 3 simply chr(i)
– Benj
Apr 24 '19 at 11:...