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How do you get a Golang program to print the line number of the error it just called?
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So, for this to work I only need to set that at the top of one of the package files and it will available for all my files for that package?
– Pinocchio
Jul 17 '14 at 18:31
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What does it mean for a data structure to be “intrusive”?
...n some way. Adding the element to the data structure changes the element.
For instance, you can build a non-intrusive binary tree, where each node have a reference to the left and right sub-trees, and a reference to the element value of that node.
Or, you can build an intrusive one where the refer...
How do I add a path to PYTHONPATH in virtualenv
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Unfortunately this does not work as an override. It appends the path, so if you're developing it doesn't work.
– Erik Aronesty
Aug 29 '18 at 21:34
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Array include any value from another array?
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(cheeses & foods).empty?
As Marc-André Lafortune said in comments, & works in linear time while any? + include? will be quadratic. For larger sets of data, linear time will be faster. For small data sets, any? + include? may be faster as shown by Lee Jarvis' ans...
Why is Scala's immutable Set not covariant in its type?
...terable[A]
In short, the best solution is to keep things invariant, even for the immutable data structure. You'll notice that immutable.Map is also invariant in one of its type parameters.
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Django TemplateDoesNotExist?
...hon2.5/site-packages/projectname/ then with your settings django will look for the templates under /usr/lib/python2.5/site-packages/projectname/templates/
So in that case we want to move our templates to be structured like this:
/usr/lib/python2.5/site-packages/projectname/templates/template1.html...
How to make Entity Framework Data Context Readonly
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Don't forget to override public override Task<int> SaveChangesAsync() as well.
– Pete
Nov 16 '16 at 19:32
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lenses, fclabels, data-accessor - which library for structure access and mutation is better
There are at least three popular libraries for accessing and manipulating fields of records. The ones I know of are: data-accessor, fclabels and lenses.
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Getting realtime output using subprocess
I am trying to write a wrapper script for a command line program (svnadmin verify) that will display a nice progress indicator for the operation. This requires me to be able to see each line of output from the wrapped program as soon as it is output.
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What can I do to resolve a “Row not found or changed” Exception in LINQ to SQL on a SQL Server Compa
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Thats nasty, but simple:
Check if the data types for all fields in the O/R-Designer match the data types in your SQL table.
Double check for nullable! A column should be either nullable in both the O/R-Designer and SQL, or not nullable in both.
For example, a NVARCHAR colu...