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Measuring elapsed time with the Time module

...append(elapsed_time) return ret return with_profiling def print_prof_data(): for fname, data in PROF_DATA.items(): max_time = max(data[1]) avg_time = sum(data[1]) / len(data[1]) print "Function %s called %d times. " % (fname, data[0]), print 'Execut...
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Use 'class' or 'typename' for template parameters? [duplicate]

... Stan Lippman talked about this here. I thought it was interesting. Summary: Stroustrup originally used class to specify types in templates to avoid introducing a new keyword. Some in the committee worried that this overloading of the keyword led to confusion. Later, the committ...
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Large, persistent DataFrame in pandas

...memory problems with read_csv on large files caused by some complex Python internal issues (this is vague but it's been known for a long time: http://github.com/pydata/pandas/issues/407). At the moment there isn't a perfect solution (here's a tedious one: you could transcribe the file row-by-row i...
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How to add a custom HTTP header to every WCF call?

....Name, httpRequestMessage); } return null; } Then create an endpoint behavior that applies the message inspector to the client runtime. You can apply the behavior via an attribute or via configuration using a behavior extension element. Here is a great example of how to add an HTTP user-...
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Algorithm to detect overlapping periods [duplicate]

... The first time I had to do this, I wrote code like yours, until someone pointed this out. Just passing it on :) – Rawling Nov 22 '12 at 13:49 9 ...
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What is the Swift equivalent of isEqualToString in Objective-C?

...on = "We're a lot alike, you and I." if quotation == sameQuotation { println("These two strings are considered equal") } // prints "These two strings are considered equal" . . . For more read official documentation of Swift (search Comparing Strings). ...
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C# - Keyword usage virtual+override vs. new

... Bar (); Console.WriteLine (test.DoSomething ()); } } This prints false, if you used override it would have printed true. (Base code taken from Joseph Daigle) So, if you are doing real polymorphism you SHOULD ALWAYS OVERRIDE. The only place where you need to use "new" is when the met...
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Unioning two tables with different number of columns

...AS in the columns like this: (the query is not the same as yours but the point here is how to add alias in the column.) SELECT id_table_a, desc_table_a, table_b.id_user as iUserID, table_c.field as iField UNION SELECT id_table_a, desc_table_a, table_c.id_user...
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How to create function that returns nothing

... Use RETURNS void like below: CREATE FUNCTION stamp_user(id int, comment text) RETURNS void AS $$ #variable_conflict use_variable DECLARE curtime timestamp := now(); BEGIN UPDATE users SET last_modified = curtime, comment = comment WHERE users.id ...
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How to print a string in fixed width?

I have this code (printing the occurrence of the all permutations in a string) 5 Answers ...