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How should I structure a Python package that contains Cython code
...ke installation more stable/robust, because user may get different results based on which version of Cython he has installed - he may not even be aware that he has it installed and that it is affecting the building of package.
– Martinsos
Feb 17 '17 at 9:22
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What is the best way to give a C# auto-property an initial value?
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@CallMeLaNN call :base() in your concrete class to construct it's base (abstract)
– Guillaume Massé
Sep 8 '11 at 21:00
43
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What is the most efficient/elegant way to parse a flat table into a tree?
... MySQL 8.0 supports recursive queries, we can say that all popular SQL databases support recursive queries in standard syntax.
WITH RECURSIVE MyTree AS (
SELECT * FROM MyTable WHERE ParentId IS NULL
UNION ALL
SELECT m.* FROM MyTABLE AS m JOIN MyTree AS t ON m.ParentId = t.Id
)
SELECT * ...
Should I use static_cast or reinterpret_cast when casting a void* to whatever
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My personal preference is based on code literacy like this:
void* data = something;
MyClass* foo = reinterpret_cast<MyClass*>(data);
foo->bar();
or
typedef void* hMyClass; //typedef as a handle or reference
hMyClass = something;
const MyC...
How to pass a user defined argument in scrapy spider
...: Add second argument
Update 2015: Adjust wording
Update 2016: Use newer base class and add super, thanks @Birla
Update 2017: Use Python3 super
# previously
super(MySpider, self).__init__(**kwargs) # python2
Update 2018: As @eLRuLL points out, spiders can access arguments as attributes
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Is module __file__ attribute absolute or relative?
...hon-2.*, the second call incorrectly determines the path.abspath(__file__) based on the current directory:
cwd: C:\codes\py
__file__:cwd_mayhem.py
abspath: C:\codes\py\cwd_mayhem.py
cwd: C:\codes
__file__:cwd_mayhem.py
abspath: C:\codes\cwd_mayhem.py
As noted by @techtonik, in Python 3.4+...
Which iomanip manipulators are 'sticky'?
...ators return an object rather than a stream:
setiosflags
resetiosflags
setbase
setfill
setprecision
setw
This is a common technique to apply an operation to only the next object that is applied to the stream. Unfortunately this does not preclude them from being sticky. Tests indicate that all of ...
Convert Enumeration to a Set/List
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Can't choose class as main class in IntelliJ
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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In Flux architecture, how do you manage Store lifecycle?
...when you need Store #1 update itself, and then have Store #2 update itself based on both the Action and on the state of Store #1. Flux assumes this situation is an eventuality in a large application. Ideally this situation would not need to happen, and developers should strive to avoid this comple...