大约有 45,000 项符合查询结果（耗时：0.0606秒） [XML]
Assignment inside lambda expression in Python
...u'', 'bar', 'x']
>>>
You can, of course, tweak the condition a bit. In this case it filters out duplicates, but you can also use a.count(""), for example, to only restrict empty strings.
Needless to say, you can do this but you really shouldn't. :)
Lastly, you can do anything in pure P...
How do I run all Python unit tests in a directory?
...
Well by studying the code above a bit (specifically using TextTestRunner and defaultTestLoader), I was able to get pretty close. Eventually I fixed my code by also just passing all test suites to a single suites constructor, rather than adding them "manually"...
Accessing dict keys like an attribute?
...s" list, this combines the namespace of stored keys (which may come from arbitrary and/or untrusted data!) with the namespace of builtin dict method attributes. For example:
d = AttrDict()
d.update({'items':["jacket", "necktie", "trousers"]})
for k, v in d.items(): # TypeError: 'list' object is n...
Timeout a command in bash without unnecessary delay
...) you can implement all variants timeout supports. --preserve-status is a bit difficult, though. This is left as an exercise for the reader ;)
This recipe can be used "naturally" in the shell (as natural as for flock fd):
(
set +b
sleep 20 &
{
YOUR SHELL CODE HERE
} &
wait -n
kill `jobs...
How to check a string for specific characters?
...
Could you please provide a bit more context to your answer.
– brass monkey
Aug 21 '18 at 15:58
...
Rspec doesn't see my model Class. uninitialized constant error
...
Things have moved a bit since this thread has been created, I have experienced the uninitialized constant ClassName (NameError) error too using Ruby 2.1, Rails 4.2, rspec-rails 3.3.
I have solved my problems reading the rspec-rails gem document...
Git-Based Source Control in the Enterprise: Suggested Tools and Practices?
...ite important.
Workflows:
Larry Osterman (a Microsoft dev working on the Windows team) has a great blog post about the workflow they employ at the Windows team. Most notably they have:
A clean, high quality code only trunk (master repo)
All development happens on feature branches
Feature teams h...
Using HTML5/JavaScript to generate and save a file
...
answered Dec 29 '10 at 4:25
NøkNøk
2,60422 gold badges1212 silver badges22 bronze badges
...
ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
...
I thought I'd share my experience on this one, even though I feel a bit silly for not realising sooner.
I am using the repository pattern with the repo instances injected into my controllers. The concrete repositories instantiate my ModelContext (DbContext) which lasts the lifetime of the re...
Are SVG parameters such as 'xmlns' and 'version' needed?
...wer.
In recent tests on Chrome (Version 63.0.3239.132 (Official Build) (64-bit Windows)), I have found that:
For inline SVG that is directly entered into the HTML file, via text editor or javascript and elm.innerHTML, the xmlns attributes are not necessary, as stated in the other two answers.
But ...