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QUESTION
TL;DR: Interested in knowing if it's possible to use Abstract Base Classes as a mixin in the way I'd like to, or if my approach is fundamentally misguided.
I have a Flask project I've been working on. As part of my project, I've implemented a "RememberingDict" class. It's a simple subclass of dict, with a handful of extra features tacked on: it remembers its creation time, it knows how to pickle/save itself to a disk, and it knows how to open/unpickle itself from a disk:
...ANSWER
Answered 2021-Jun-15 at 03:43You can get around the problems of subclassing dict
by subclassing collections.UserDict
instead. As the docs say:
Class that simulates a dictionary. The instance’s contents are kept in a regular dictionary, which is accessible via the data attribute of UserDict instances. If initialdata is provided, data is initialized with its contents; note that a reference to initialdata will not be kept, allowing it be used for other purposes.
Essentially, it's a thin regular-class wrapper around a dict
. You should be able to use it with multiple inheritance as an abstract base class, as you do with AbstractRememberingDict
.
QUESTION
I'm running gitlab-ce on-prem with min.io as a local S3 service. CI/CD caching is working, and basic connectivity with the S3-compatible minio is good. (Versions: gitlab-ce:13.9.2-ce.0
, gitlab-runner:v13.9.0
, and minio/minio:latest
currently c253244b6fb0
.)
Is there additional configuration to differentiate between job-artifacts and pipeline-artifacts and storing them in on-prem S3-compatible object storage?
In my test repo, the "build" stage builds a sparse R package. When I was using local in-gitlab job artifacts, it succeeds and moves on to the "test" and "deploy" stages, no problems. (And that works with S3-stored cache, though that configuration is solely within gitlab-runner
.) Now that I've configured minio as a local S3-compatible object storage for artifacts, though, it fails.
ANSWER
Answered 2021-Jun-14 at 18:30The answer is to bypass the empty-string test; the underlying protocol does not support region-less configuration, nor is there a configuration option to support it.
The trick is able to work because the use of 'endpoint'
causes the 'region'
to be ignored. With that, setting the region to something and forcing the endpoint allows it to work:
QUESTION
I have a tibble dt
given as follows:
ANSWER
Answered 2021-Jun-12 at 23:51We can get the cumulative sum of 'x' (assuming it is binary), take the lag
add 1 and use that index to replace it with LETTERS
(Note that LETTERS
was used only as part of matching with the expected output - it can take go up to certain limit)
QUESTION
I recently found out there is a very handy method in three-box for placing three.js objects on the map which is "projectToworld".
While trying to place my three.js objects using the method, I realized that the Vector3 the method returns are really huge and not on the map.
According to the documentation of threebox, it says
projectToWorld
tb.projectToWorld(lnglat) : THREE.Vector3
Calculate the corresponding THREE.Vector3 for a given lnglat. It's inverse method is tb.unprojectFromWorld.
So I decided to use this method to locate my animated object in three js canvas. But what the methods returns are really huge.
So as I expected, these values don't place the three objects on the map and all the objects disappeared because they presumably are placed at very distant locations.
How do I fix this issue?
I made a minimal code to demonstrate this issue as below.
...
- instantiating map
ANSWER
Answered 2021-Jun-12 at 22:39It's strange that no one could answer this question. So I finally figured out how to make it by myself.
The solution is in the following link.
The primary reason was that mapbox plots things not based on its vector configuration. It renders things through its matrix as follows.
var m = new THREE.Matrix4().fromArray(matrix); var l = new THREE.Matrix4().makeTranslation(modelTransform.translateX, modelTransform.translateY, modelTransform.translateZ) .scale(new THREE.Vector3(modelTransform.scale, -modelTransform.scale, modelTransform.scale))
QUESTION
I'm looking for help in making a regex to match and not match a series of name patterns if anyone can help with that.
Here's a list of cases I want to match/ not match :
...ANSWER
Answered 2021-Jun-11 at 11:16I think you're looking for something like this:
QUESTION
I have registered a custom post type called How to videos
.
ANSWER
Answered 2021-Jun-11 at 04:23when accessing
/how-to-videos
it just shows the header and footer
I don't know why is that so, but How to videos
is not a valid post type key.
More specifically, the first parameter for register_post_type()
is the post type key or slug, and not the post type label which is what you've actually used:
QUESTION
I am facing a problem with my React Native Android project. I am currently working on integrating AWS Amplify Push Notifications. I am receiving the following "Duplicate Classes" dependency error and I don't know, where it might originate from. Do you have a solution for this problem?
What I already did:
- I found this ticket here https://github.com/facebook/react-native/issues/27493 which seemed to indicate that there might be an issue using react-native-device-info which was the case for me. So I removed this library and replaced it with react-native-version-info. But the problem persists.
- I checked this ticket https://github.com/dantasfiles/AmplifyAndroidPush/issues/1 - when running
./gradlew :app:dependencies > ../dependencies.txt
, I get the dependency tree and can see thatcom.firebase:firebase-jobdispatcher:0.6.0
seems to be solely used by aws amplify push notifications. But still I do not know what to do about this now:
ANSWER
Answered 2021-Jun-09 at 05:00Hi stackoverflow community,
after about a week of investigating and also opening a ticket in the aws-amplify-js github project, I was now able to solve the problem. In the following, I want to describe the solution if any of you might face the same problem in the future.
Here's the github ticket I had created on aws-amplify-js: https://github.com/aws-amplify/amplify-js/issues/8389
In my app/build.gradle I had the following definitions related to firebase and play-services:
QUESTION
I've got a tiny little utility class called ObjectCounter
that has no virtual methods and no member-variables; all it contains is a constructor and a destructor, which increment and decrement a global variable, respectively:
ANSWER
Answered 2021-Jun-07 at 22:26If you can use C++20, you can use the attribute [[no_unique_address]]
to accomplish this. Using
QUESTION
I was trying to obtain the expected utility for each individual using R's survival
package (clogit
function) and I was not able to find a simple solution such as mlogit's logsum
.
Below I set an example of how one would do it using the mlogit
package. It is pretty straight forward: it just requires regressing the variables with the mlogit
function, save the output and use it as an argument in the logsum
function -- if needed, there is a short explanation in this vignette. And what I want is to know the similar method for clogit
. I've read the package's manual but I have failed to grasp what would be the most adequate function to perform the analsysis.
Note1: My preference for a function like mlogit's
is related to the fact that I might need to perform tons of regressions later on and being able to perform the correct estimation in different scenarios would be helpful.
Note2: I do not intend that the dataset created below be representative of how data should behave. I've set the example solely for the purpose of perfoming the function after the logit regressions.
**
...ANSWER
Answered 2021-Jun-07 at 00:20The vignette you offer says the logsum is calculated as:
To my reading that is similar to the calculation used to construct the "linear predictor". the lp is t(coef(clog)) %*% Xhat
. If I'm correct on that interpretation, then that is stored in the clog
-object:
QUESTION
Below is the quote from a C# book:
The WaitHandle class is a simple class whose sole purpose is to wrap a Windows kernel object handle. Internally, the WaitHandle base class has a SafeWaitHandle field that holds a Win32 kernel object handle. This field is initialized when a concrete WaitHandle-derived class is constructed. Each method call on a kernel object causes the calling thread to transition from managed code to native user-mode code to native kernel-mode code and then return all the way back.
I'm confused on which kernel object is associated with the WaitHandle. Below is an example from MSDN:
...ANSWER
Answered 2021-Jun-06 at 01:26How can a worker thread use other thread's kernel object to block itself?
The reason why a worker thread can access a handle that isn't their own is because that handle is a reference windows kernel handle.
Windows Kernel Handles
A windows kernel handle is an operating system wide handle that can allow synchronization across domain boundaries.
Which is just a fancy way of saying that this 'handle' is some object can be seen by any thread, process, or program running on the same Windows operating system.
An easier way that I like thinking about it is to consider a rudimentary lock for a shared resource.
This lock traditionally works such that an array, using the lock keyword and a System.Object
, can be protected from multiple threads changing it's values at once.
Let's look at a short example of that
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