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How to return dictionary keys as a list in Python?
... generalizations (PEP 448) were introduced with Python 3.5 allowing you to now easily do:
>>> newdict = {1:0, 2:0, 3:0}
>>> [*newdict]
[1, 2, 3]
Unpacking with * works with any object that is iterable and, since dictionaries return their keys when iterated through, you can easil...
How to create abstract properties in python abstract classes
...
Since Python 3.3 a bug was fixed meaning the property() decorator is now correctly identified as abstract when applied to an abstract method.
Note: Order matters, you have to use @property before @abstractmethod
Python 3.3+: (python docs):
class C(ABC):
@property
@abstractmethod
...
How can I conditionally require form inputs with AngularJS?
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This feature is documented by now: docs.angularjs.org/api/ng/directive/ngRequired
– bjunix
May 9 '16 at 11:42
add a comment
...
AngularJS ui-router login authentication
...Params
= $rootScope.toStateParams;
// now, send them to the signin state
// so they can log in
$state.go('signin');
}
}
});
}
};
}
])
Now all you need to do is listen in on ui-route...
How to unmount a busy device
... -l / --lazy won't corrupt open files, but on Linux it seems you can't know when the device is actually unmounted and can be removed
– Tom Hale
Aug 12 '17 at 6:14
...
How can I set the text of a WPF Hyperlink via data binding?
..., and I want the text of the hyperlink to be the name of the object. Right now, I have this:
3 Answers
...
Saving enum from select in Rails 4.1
...arkling</option>
</select>
Values went from "0" to "red" and now we're all set.
If you're using a regular ol' rails text_field it's:
f.select :color, Wine.colors.keys.to_a
If you want to have clean human-readable attributes you can also do:
f.select :color, Wine.colors.keys.ma...
How do I comment on the Windows command line?
...essor (such as within complex if or for statements) so I generally use rem nowadays. In any case, it's a hack, suborning the label infrastructure to make it look like a comment when it really isn't. For example, try replacing rem with :: in the following example and see how it works out:
if 1==1 (
...
Shuffling a list of objects
...
@CharlieParker: Not that I know of. You could use random.sample(x, len(x)) or just make a copy and shuffle that. For list.sort which has a similar issue, there's now list.sorted, but there's not a similar variant for shuffle.
– to...
How do I push a local repo to Bitbucket using SourceTree without creating a repo on bitbucket first?
...c key you copied in step 4 of the previous section
That's it! You should now be able to push/pull to your BitBucket private repos. Your keys aren't just for Git either, many services use ssh keys to identify users, and the best part is you only need one. If you ever lose your keys (e.g. when chang...