block | An intelligent block matrix library for numpy PyTorch | Machine Learning library

 by   bamos Python Version: 0.0.5 License: Apache-2.0

kandi X-RAY | block Summary

kandi X-RAY | block Summary

block is a Python library typically used in Artificial Intelligence, Machine Learning, Deep Learning, Pytorch, Numpy applications. block has no bugs, it has no vulnerabilities, it has build file available, it has a Permissive License and it has high support. You can install using 'pip install block' or download it from GitHub, PyPI.

An intelligent block matrix library for numpy, PyTorch, and beyond.
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            kandi-support Support

              block has a highly active ecosystem.
              It has 256 star(s) with 28 fork(s). There are 11 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 5 open issues and 6 have been closed. There are no pull requests.
              It has a positive sentiment in the developer community.
              The latest version of block is 0.0.5

            kandi-Quality Quality

              block has 0 bugs and 0 code smells.

            kandi-Security Security

              block has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.
              block code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              block is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              block releases are not available. You will need to build from source code and install.
              Deployable package is available in PyPI.
              Build file is available. You can build the component from source.
              Installation instructions, examples and code snippets are available.

            Top functions reviewed by kandi - BETA

            kandi has reviewed block and discovered the below as its top functions. This is intended to give you an instant insight into block implemented functionality, and help decide if they suit your requirements.
            • Block tridiagonal block
            • Create a block of block sizes
            • Return a Backend instance for the given rows
            • Check if x is a complete tensor
            • Check if the variable is complete
            • Checks if x is a list or tuple
            • Calculate the transformation matrix
            • Check if x is complete
            • Convert to a variable
            Get all kandi verified functions for this library.

            block Key Features

            No Key Features are available at this moment for block.

            block Examples and Code Snippets

            Return the inverse inverse of a block lower left triangle .
            pythondot img1Lines of Code : 95dot img1License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def _inverse_block_lower_triangular(block_lower_triangular_operator):
              """Inverse of LinearOperatorBlockLowerTriangular.
            
              We recursively apply the identity:
            
              ```none
              |A 0|'  =  |    A'  0|
              |B C|      |-C'BA' C'|
              ```
            
              where `A` is n-by-n,  
            Create a conditional statement block .
            pythondot img2Lines of Code : 50dot img2License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def _create_cond_branch(self, body_name, aliased_orig_names,
                                      aliased_new_names, body, returns):
                if len(returns) == 1:
                  template = """
                    return retval
                  """
                  return_stmt = templates.replace(template, r  
            Enter the block .
            pythondot img3Lines of Code : 46dot img3License : Non-SPDX (Apache License 2.0)
            copy iconCopy
            def _EnterOutsideCompilationScope(self, cluster: Optional[Text] = None):
            
                class FakeOp(object):
                  """A helper class to determine the current device.
            
                  Supports only the type and device set/get methods needed to run the
                  graph's _app  

            Community Discussions

            QUESTION

            Springboot 2.6.0 / Spring fox 3 - Failed to start bean 'documentationPluginsBootstrapper'
            Asked 2022-Mar-25 at 06:14

            I'm trying to initiate a Springboot project using Open Jdk 15, Springboot 2.6.0, Springfox 3. We are working on a project that replaced Netty as the webserver and used Jetty instead because we do not need a non-blocking environment.

            In the code we depend primarily on Reactor API (Flux, Mono), so we can not remove org.springframework.boot:spring-boot-starter-webflux dependencies.

            I replicated the problem that we have in a new project.: https://github.com/jvacaq/spring-fox.

            I figured out that these lines in our build.gradle file are the origin of the problem.

            ...

            ANSWER

            Answered 2022-Feb-08 at 12:36

            This problem's caused by a bug in Springfox. It's making an assumption about how Spring MVC is set up that doesn't always hold true. Specifically, it's assuming that MVC's path matching will use the Ant-based path matcher and not the PathPattern-based matcher. PathPattern-based matching has been an option for some time now and is the default as of Spring Boot 2.6.

            As described in Spring Boot 2.6's release notes, you can restore the configuration that Springfox assumes will be used by setting spring.mvc.pathmatch.matching-strategy to ant-path-matcher in your application.properties file. Note that this will only work if you are not using Spring Boot's Actuator. The Actuator always uses PathPattern-based parsing, irrespective of the configured matching-strategy. A change to Springfox will be required if you want to use it with the Actuator in Spring Boot 2.6 and later.

            Source https://stackoverflow.com/questions/70036953

            QUESTION

            AttributeError: Can't get attribute 'new_block' on
            Asked 2022-Feb-25 at 13:18

            I was using pyspark on AWS EMR (4 r5.xlarge as 4 workers, each has one executor and 4 cores), and I got AttributeError: Can't get attribute 'new_block' on . Below is a snippet of the code that threw this error:

            ...

            ANSWER

            Answered 2021-Aug-26 at 14:53

            I had the same error using pandas 1.3.2 in the server while 1.2 in my client. Downgrading pandas to 1.2 solved the problem.

            Source https://stackoverflow.com/questions/68625748

            QUESTION

            Rails 7 Ruby 3.1 LoadError: cannot load such file -- net/smtp
            Asked 2022-Jan-25 at 16:15

            I upgraded to Rails 7 and Ruby 3.1. While trying to run tests with rspec I got the error below. How can I fix it?

            ...

            ANSWER

            Answered 2022-Jan-25 at 16:15

            UPD: on January 6th, 2022 Rails 7.0.1 was released:

            The focus of this release is bring support to Ruby 3.1

            Amongh other Ruby 3.1-related issues it brought a fix for this problem. So upgrade to Rails >= 7.0.1.

            Add gem 'net-smtp', require: false to your Gemfile and run bundle.

            Similarly I assume you may have problems with net-imap and net-pop and so have to add them until a new mail gem version is released.

            Related pull requests and issues:

            Source https://stackoverflow.com/questions/70500220

            QUESTION

            React injecting iframe with max z-index on reload after changes (development)
            Asked 2022-Jan-21 at 12:33

            I have a Create React App with the following .env file:

            ...

            ANSWER

            Answered 2021-Sep-04 at 10:56

            Found the root cause: This iframe is used by the hot loader to inject code in the DOM. It is appended and removed immediately after the injection. If an error occurs while this is happening, the hot loader breaks, not removing the iframe.

            In my case, it was a Content-Security-Policy error causing an error during the injection.

            Just adjusted my policies in my app and it's working fine now.

            Source https://stackoverflow.com/questions/69051008

            QUESTION

            What is the difference between the event loop in JavaScript and async non-blocking I/O in Node.js?
            Asked 2021-Dec-19 at 01:55

            In this answer to the question -

            What is non-blocking or asynchronous I/O in Node.js?

            the description sounds no different from the event loop in vanilla js. Is there a difference between the two? If not, is the Event loop simply re-branded as "Asynchronous non-blocking I/O" to sell Node.js over other options more easily?

            ...

            ANSWER

            Answered 2021-Dec-10 at 06:41

            There are 2 different Event Loops:

            1. Browser Event Loop
            2. NodeJS Event Loop
            Browser Event Loop

            The Event Loop is a process that runs continually, executing any task queued. It has multiple task sources which guarantees execution order within that source, but the Browser gets to pick which source to take a task from on each turn of the loop. This allows Browser to give preference to performance sensitive tasks such as user-input.

            There are a few different steps that Browser Event Loop checks continuously:

            • Task Queue - There can be multiple task queues. Browser can execute queues in any order they like. Tasks in the same queue must be executed in the order they arrived, first in - first out. Tasks execute in order, and the Browser may render between tasks. Task from the same source must go in the same queue. The important thing is that task is going to run from start to finish. After each task, Event Loop will go to Microtask Queue and do all tasks from there.

            • Microtasks Queue - The microtask queue is processed at the end of each task. Any additional microtasks queued during during microtasks are added to the end of the queue and are also processed.

            • Animation Callback Queue - The animation callback queue is processed before pixels repaint. All animation tasks from the queue will be processed, but any additional animation tasks queued during animation tasks will be scheduled for the next frame.

            • Rendering Pipeline - In this step, rendering will happen. The Browser gets to decide when to do this and it tried to be as efficient as possible. The rendering steps only happen if there is something actually worth updating. The majority of screens update at a set frequency, in most cases 60 times a second (60Hz). So, if we would change page style 1000 times a second, rendering steps would not get processed 1000 times a second, but instead it would synchronize itself with the display and only render up to a frequency display is capable of.

            Important thing to mention are Web APIs, that are effectively threads. So, for example setTimeout() is an API provided to us by Browser. When you call setTimeout() Web API would take over and process it, and it will return the result to the main thread as a new task in a task queue.

            The best video I found that describes how Event Loops works is this one. It helped me a lot when I was investigating how Event Loop works. Another great videos are this one and this one. You should definitely check all of them.

            NodeJS Event Loop

            NodeJS Event Loop allows NodeJS to perform non-blocking operations by offloading operation to the system kernel whenever possible. Most modern kernels are multi-threaded and they can perform multiple operations in the background. When one of these operations completes, the kernel tells NodeJS.

            Library that provides the Event Loop to NodeJS is called Libuv. It will by default create something called Thread Pool with 4 threads to offload asynchronous work to. If you want, you can also change the number of threads in the Thread Pool.

            NodeJS Event Loop goes through different phases:

            • timers - this phase executes callbacks scheduled by setTimeout() and setInterval().

            • pending callbacks - executes I/O callbacks deferred to the next loop iteration.

            • idle, prepare - only used internally.

            • poll - retrieve new I/O events; execute I/O related callbacks (almost all with the exception of close callbacks, the ones scheduled by timers, and setImmediate()) Node will block here when appropriate.

            • check - setImmediate() callbacks are invoked here.

            • close callbacks - some close callbacks, e.g. socket.on('close', ...).

            Between each run of the event loop, Node.js checks if it is waiting for any asynchronous I/O or timers and shuts down cleanly if there are not any.

            In Browser, we had Web APIs. In NodeJS, we have C++ APIs with the same rule.

            I found this video to be useful if you want to check for more information.

            Source https://stackoverflow.com/questions/70201005

            QUESTION

            Typescript: deep keyof of a nested object, with related type
            Asked 2021-Dec-02 at 09:30

            I'm looking for a way to have all keys / values pair of a nested object.

            (For the autocomplete of MongoDB dot notation key / value type)

            ...

            ANSWER

            Answered 2021-Dec-02 at 09:30

            In order to achieve this goal we need to create permutation of all allowed paths. For example:

            Source https://stackoverflow.com/questions/69126879

            QUESTION

            Why there are two "require" blocks in go.mod since Go 1.17?
            Asked 2021-Oct-04 at 09:40

            I've created small go application. Few days back I upgraded from go 1.15 to 1.17 and I also upgraded packages with go get -u. After the changes I have 2 require blocks in my go.mod file. Why is it? What does it mean? Is it ok or something is broken?

            Application still builds correctly.

            go.mod file:

            ...

            ANSWER

            Answered 2021-Oct-04 at 09:40

            Because in Go 1.17 the module graph has been changed to enable pruning and lazy loading. The second require block contains indirect dependencies.

            https://golang.org/doc/go1.17#go-command

            If a module specifies go 1.17 or higher, the module graph includes only the immediate dependencies of other go 1.17 modules, not their full transitive dependencies. [...]

            [...] If a module specifies go 1.17 or higher in its go.mod file, its go.mod file now contains an explicit require directive for every module that provides a transitively-imported package. (In previous versions, the go.mod file typically only included explicit requirements for directly-imported packages.)

            Because the number of explicit requirements may be substantially larger in an expanded Go 1.17 go.mod file, the newly-added requirements on indirect dependencies in a go 1.17 module are maintained in a separate require block from the block containing direct dependencies.

            Note: the go.mod file that you posted in your question has //indirect dependencies in the first require block. I suspect, inferring from the quoted docs "newly-added" term, that this is because those //indirect dependencies were already listed there and go mod tidy doesn't rearrange them. If you:

            • manually delete one of those
            • and/or recreate the go.mod file with Go version set to 1.17 or higher
            • and/or run go mod tidy -go=1.17

            then it will properly separate direct and //indirect dependencies in the two blocks. At least this is what I see empirically in my projects. Still looking for a more explicit mention in the docs.

            Source https://stackoverflow.com/questions/69432877

            QUESTION

            Do asynchronous context managers need to protect their cleanup code from cancellation?
            Asked 2021-Aug-05 at 08:56
            The problem (I think)

            The contextlib.asynccontextmanager documentation gives this example:

            ...

            ANSWER

            Answered 2021-Aug-03 at 11:18

            You can protect the task with asyncio.shield to guarantee graceful shutdown of the context manager, I did changes only in main():

            Source https://stackoverflow.com/questions/68624314

            QUESTION

            What happens if you transfer control to a if(false) block by using goto?
            Asked 2021-Jul-20 at 19:03

            I've thought of following code by trying to solve a difficult 'nested-condition' problem:

            ...

            ANSWER

            Answered 2021-Jul-05 at 14:34

            Yes, this is well defined. From stmt.goto#1

            The goto statement unconditionally transfers control to the statement labeled by the identifier. The identifier shall be a label located in the current function.

            There are some restrictions, e.g. a case label cannot cross a non-trivial initialization

            Source https://stackoverflow.com/questions/68257652

            QUESTION

            Why does the delete[] syntax exist in C++?
            Asked 2021-Jun-14 at 11:55

            Every time somebody asks a question about delete[] on here, there is always a pretty general "that's how C++ does it, use delete[]" kind of response. Coming from a vanilla C background what I don't understand is why there needs to be a different invocation at all.

            With malloc()/free() your options are to get a pointer to a contiguous block of memory and to free a block of contiguous memory. Something in implementation land comes along and knows what size the block you allocated was based on the base address, for when you have to free it.

            There is no function free_array(). I've seen some crazy theories on other questions tangentially related to this, such as calling delete ptr will only free the top of the array, not the whole array. Or the more correct, it is not defined by the implementation. And sure... if this was the first version of C++ and you made a weird design choice that makes sense. But why with $PRESENT_YEAR's standard of C++ has it not been overloaded???

            It seems to be the only extra bit that C++ adds is going through the array and calling destructors, and I think maybe this is the crux of it, and it literally is using a separate function to save us a single runtime length lookup, or nullptr at end of the list in exchange for torturing every new C++ programmer or programmer who had a fuzzy day and forgot that there is a different reserve word.

            Can someone please clarify once and for all if there is a reason besides "that's what the standard says and nobody questions it"?

            ...

            ANSWER

            Answered 2021-May-19 at 19:55

            Objects in C++ often have destructors that need to run at the end of their lifetime. delete[] makes sure the destructors of each element of the array are called. But doing this has unspecified overhead, while delete does not. One for arrays, which pays the overhead and one for single objects which does not.

            In order to only have one version, an implementation would need a mechanism for tracking extra information about every pointer. But one of the founding principles of C++ is that the user shouldn't be forced to pay a cost that they don't absolutely have to.

            Always delete what you new and always delete[] what you new[]. But in modern C++, new and new[] are generally not used anymore. Use std::make_unique, std::make_shared, std::vector or other more expressive and safer alternatives.

            Source https://stackoverflow.com/questions/67578185

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

            Vulnerabilities

            No vulnerabilities reported

            Install block

            Install: pip install block
            Usage: from block import block
            Run tests in test.py: nosetests test.py

            Support

            I'd be happy to hear from you about any issues or features you add, please file an issue or send in a PR.
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