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How can you profile a Python script?
...e euler048.py
And I get this:
1007 function calls in 0.061 CPU seconds
Ordered by: standard name
ncalls tottime percall cumtime percall filename:lineno(function)
1 0.000 0.000 0.061 0.061 <string>:1(<module>)
1000 0.051 0.000 0.051 0.000 euler048.py:2...
Count number of occurrences of a pattern in a file (even on same line)
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Coding Practices which enable the compiler/optimizer to make a faster program
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The order you traverse memory can have profound impacts on performance and compilers aren't really good at figuring that out and fixing it. You have to be conscientious of cache locality concerns when you write code if you care a...
Which is faster in Python: x**.5 or math.sqrt(x)?
...l namespace speeds it up more is probably because of the method resolution order: the compiler first checks if the function was defined in your code, then in any imports, so if it was defined locally it takes less time per lookup
– Rotem Shalev
Aug 21 at 11:26
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Weak and strong property setter attributes in Objective-C
...ver may be unpredictably set to nil". I have seen some other posts that in order to prevent this warning, you have to create a local strong reference. And if this is true, what's the point to make a property weak, if at the end I have to create a strong reference?
– arh
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Received an invalid column length from the bcp client for colid 6
...ds to be extended or the value your are inserting needs to be trim. Column order also should be same as in table.
e.g, Increase size of varchar column 30 to 50 =>
ALTER TABLE [dbo].[TableName]
ALTER COLUMN [ColumnName] Varchar(50)
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Swift Beta performance: sorting arrays
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type and size as the old one, with its elements in the correct sorted
order.
The sort function has two declarations.
The default declaration which allows you to specify a comparison closure:
func sort<T>(array: T[], pred: (T, T) -> Bool) -> T[]
And a second declaration that on...
How to check if running in Cygwin, Mac or Linux?
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This is precisely what I was looking for in order to write a portable/cross-platform ~/.profile (to set environment variables like $PATH -- commenting to provide search keywords for posterity).
– Braham Snyder
Oct 1 '17 at 16:36
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How does type Dynamic work and how to use it?
... If you use do checks at runtime, you have to do the parameter checking in order to dispatch correctly to the right code path. That shouldn't be more overhead than any other parameter checking in your application has. If you make use of reflection, you get obviously more overhead but you have to mea...
Python's many ways of string formatting — are the older ones (going to be) deprecated?
...rase was removed later, in commit Close #4966: revamp the sequence docs in order to better explain the state of modern Python. This might seem like a sign that a plan to deprecate % formatting was back on the cards... but diving into the bug tracker reveals that the intent was the opposite. On the b...