大约有 40,000 项符合查询结果(耗时:0.0471秒) [XML]

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sqlalchemy: how to join several tables by one query?

...rmissions.document, ).filter( User.email == 'someemail', ).all() share | improve this answer | follow | ...
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Fastest way to list all primes below N

...4.0 | | sundaram3 | 416.0 | +---------------------+-------+ Of all the methods tested, allowing numpy, for n=1000000, primesfrom2to was the fastest tested. +---------------------+-------+ | Method | ms | +---------------------+-------+ | primesfrom2to | 15.9 | | p...
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Python read-only property

... Generally, Python programs should be written with the assumption that all users are consenting adults, and thus are responsible for using things correctly themselves. However, in the rare instance where it just does not make sens...
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Get class that defined method

...ited Jun 20 '14 at 19:44 Aaron Hall♦ 260k6969 gold badges353353 silver badges303303 bronze badges answered Jun 7 '09 at 2:23 ...
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How do I get the real .height() of a overflow: hidden or overflow: scroll div?

...qual to the minimum clientHeight the element would require in order to fit all the content in the viewpoint without using a vertical scrollbar. It includes the element padding but not its margin. share | ...
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Can I use __init__.py to define global variables?

I want to define a constant that should be available in all of the submodules of a package. I've thought that the best place would be in in the __init__.py file of the root package. But I don't know how to do this. Suppose I have a few subpackages and each with several modules. How can I access th...
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Design patterns or best practices for shell scripts [closed]

...first suggestion is "don't". The reason is that is fairly easy to make a small mistake that hinders your script, or even make it dangerous. That said, I don't have other resources to pass you but my personal experience. Here is what I normally do, which is overkill, but tends to be solid, although...
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How can I create a copy of an object in Python?

...would like to create a copy of an object. I want the new object to possess all properties of the old object (values of the fields). But I want to have independent objects. So, if I change values of the fields of the new object, the old object should not be affected by that. ...
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How to match “any character” in regular expression?

... Not always dot is means any char. Exception when single line mode. \p{all} should be – martian May 25 '17 at 15:26 ...
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In which case do you use the JPA @JoinTable annotation?

... project_id name name task_id The Project_Tasks table is called a "Join Table". To implement this second solution in JPA you need to use the @JoinTable annotation. For example, in order to implement a uni-directional one-to-many association, we can define our entities as such: Proj...