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How to fix “Attempted relative import in non-package” even with __init__.py

...ry to execute the above shell command, the fact that you need __init__.pys all the way down, and the __package__-modifying trickery (described below by BrenBarn) needed to allow these imports for executable scripts (e.g. when using a shebang and doing ./my_script.py at the Unix shell) would all be u...
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Javascript/DOM: How to remove all events of a DOM object?

Just question: Is there any way to completely remove all events of an object, e.g. a div? 12 Answers ...
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What are the applications of binary trees?

...ningless - they are not a data structure, but a family of data structures, all with different performance characteristics. While it is true that unbalanced binary trees perform much worse than self-balancing binary trees for searching, there are many binary trees (such as binary tries) for which "b...
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Django select only rows with duplicate field values

... syntax is also how Django interprets you wanting to do a join. So, essentially when you try to filter on that, Django thinks you're trying to do a join with count which obviously doesn't exist. The fix is to specify a name for your annotation result, i.e. annotate(mycount=Count('id')) and then filt...
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How do I get the full path to a Perl script that is executing?

...me of the script during execution. I discovered that depending on how you call the script $0 varies and sometimes contains the fullpath+filename and sometimes just filename . Because the working directory can vary as well I can't think of a way to reliably get the fullpath+filename of the scr...
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How to import other Python files?

... importlib was added to Python 3 to programmatically import a module. It is just a wrapper around __import__, see the docs. import importlib moduleName = input('Enter module name:') importlib.import_module(moduleName) Note: the .py extension should be removed from mod...
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Patterns for handling batch operations in REST web services?

... or resource attributes. That is, update each markedAsRead attribute. Basically, instead of treating the attribute as part of each resource, you treat it as a bucket into which to put resources. One example was already posted. I adjusted it a little. POST /mail?markAsRead=true POSTDATA: ids=[0,1,2]...
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C++ compiling on Windows and Linux: ifdef switch [duplicate]

... @MestreLion The Predef project has since been absorbed into Boost, but all the macros are still listed in the documentation here: boost.org/doc/libs/release/libs/predef/doc/html/index.html – rubenvb Mar 26 '16 at 12:43 ...
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Ignore python multiple return value

...add gettext functionality to someone else's code (that defines a function called '_') so it should be banned – nosklo Jan 11 '09 at 13:32 28 ...
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Get operating system info

...x]{2})', 'Windows'); // Doesn't seem like these are necessary...not totally sure though.. //$ros[] = array('(winnt)([0-9]{1,2}\.[0-9]{1,2}){0,1}', 'Windows NT'); //$ros[] = array('(windows nt)(([0-9]{1,2}\.[0-9]{1,2}){0,1})', 'Windows NT'); // fix by bg $ros[] = array('Windows ME', '...