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Circular (or cyclic) imports in Python
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There was a really good discussion on this over at comp.lang.python last year. It answers your question pretty thoroughly.
Imports are pretty straightforward really. Just remember the following:
'import' and 'from xxx import yyy' are executable statements. They execu...
Accessing items in an collections.OrderedDict by index
...nal datastructure for applications that have to do this very often: github.com/niklasf/indexed.py
– Niklas
Sep 6 '13 at 20:07
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How do I list all cron jobs for all users?
Is there a command or an existing script that will let me view all of a *NIX system's scheduled cron jobs at once? I'd like it to include all of the user crontabs, as well as /etc/crontab , and whatever's in /etc/cron.d . It would also be nice to see the specific commands run by run-parts in /e...
Can I access constants in settings.py from templates in Django?
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Plain Old CLR Object vs Data Transfer Object
...es of OOP. It should (but doesn't have to) have state and behavior. POCO comes from POJO, coined by Martin Fowler [anecdote here]. He used the term POJO as a way to make it more sexy to reject the framework heavy EJB implementations. POCO should be used in the same context in .Net. Don't let fr...
How to put spacing between TBODY elements
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Why are local variables not initialized in Java?
... output could be some unexpected value. So in case of local variables, the compiler will ask the programmer to initialize with some value before they access the variable to avoid the usage of undefined values.
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how to calculate binary search complexity
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Here a more mathematical way of seeing it, though not really complicated. IMO much clearer as informal ones:
The question is, how many times can you divide N by 2 until you have 1? This is essentially saying, do a binary search (half the elements) until you found it. In a formula this...
Why can't a text column have a default value in MySQL?
...lue" returns about 2,940 results on Google. Most of them are reports of incompatibilities when trying to install DB scripts that worked on one system but not others.
I am running into the same problem now on a webapp I'm modifying for one of my clients, originally deployed on Linux MySQL v5.0.83-l...
Difference in make_shared and normal shared_ptr in C++
...t;("bar"));
Update II: Disadvantage of std::make_shared
Quoting Casey's comments:
Since there there's only one allocation, the pointee's memory cannot be deallocated until the control block is no longer in use. A weak_ptr can keep the control block alive indefinitely.
Why do instances of we...