singleton | A Python Singleton Library

by reyoung Python Version: 0.1.0 License: No License

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | singleton Summary

singleton is a Python library. singleton has no bugs, it has no vulnerabilities, it has build file available and it has low support. You can install using 'pip install singleton' or download it from GitHub, PyPI.

A Python Singleton Library.

Support

Quality

Security

License

Reuse

Support

singleton has a low active ecosystem.

It has 10 star(s) with 3 fork(s). There are 3 watchers for this library.

It had no major release in the last 12 months.

There are 1 open issues and 0 have been closed. On average issues are closed in 1396 days. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of singleton is 0.1.0

Quality

singleton has no bugs reported.

Security

singleton has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

License

singleton does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

singleton 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.

Top functions reviewed by kandi - BETA

kandi has reviewed singleton and discovered the below as its top functions. This is intended to give you an instant insight into singleton implemented functionality, and help decide if they suit your requirements.

Initialize the instance .
Get the instance of the model .
Decorator for Singletons
Set the class .
Returns whether the connection is initialized .
Check if an instance is a class instance .

Get all kandi verified functions for this library.

singleton Key Features

No Key Features are available at this moment for singleton.

singleton Examples and Code Snippets

No Code Snippets are available at this moment for singleton.

Community Discussions

Trending Discussions on singleton

How to properly use Executer In Room Android

How to handle XPath expressions with saxon-js in Node

Display Last Element in List Prolog

Is ternary operator interpreted as I intended?

Dependency inject a custom file provider for runtime compilation

ContextLoader - Root WebApplicationContext initialized 3 times on ubuntu tomcat

org.springframework.security.web.access.AccessDeniedException: Access is Denied

After guard let url the value still needs to be unwrapped

Converting 2D array into 2D ArrayList that is backed by the original array

How to pass an array of setting values across multiple classes, efficiently

QUESTION

How to properly use Executer In Room Android

Asked 2021-Jun-15 at 11:44

So I am relatively new to programming, and I have been working on this task app, where I want to save the data such as task name and more, given by the user. I am trying to accomplish this using Room. Now, initially, when I tried to do it, the app would crash since I was doing everything on the main thread probably. So, after a little research, I came to AsyncTask, but that is outdated. Now finally I have come across the Executer. I created a class for it, but I am a little unsure as to how I can implement it in my app. This is what I did :

Entity Class :

...

ANSWER

Answered 2021-Jun-14 at 12:03

First make a Repository class and make an instance of your DAO

Source https://stackoverflow.com/questions/67966494

QUESTION

How to handle XPath expressions with saxon-js in Node

Asked 2021-Jun-15 at 07:47

I have written the following class in Typescript:

...

ANSWER

Answered 2021-Jun-15 at 07:47

SaxonJS.getResource() is asynchronous and returns a Promise; I think you have supplied this Promise to SaxonJS.XPath.Evaluate(), which is treating it as a general Javascript object.

You need something like

Source https://stackoverflow.com/questions/67979111

QUESTION

Display Last Element in List Prolog

Asked 2021-Jun-14 at 19:15

Given the list [1, 2, 3, 4], display the last element. I am using only one parameter and using recursion.

This is what I tried. But the output is always true.

...

ANSWER

Answered 2021-May-25 at 09:20

I think you over thought this.

The predicate lastElement(Stack). will match on everything. You just want the last element of the list.

Try this:

Source https://stackoverflow.com/questions/67684953

QUESTION

Is ternary operator interpreted as I intended?

Asked 2021-Jun-14 at 15:30

    public class FileStorage
    {

        private static FileStorage _instance;
        public static FileStorage instance
        {
            get
            {
                return (_instance != null) ? _instance : _instance = new FileStorage();
            }
        }

        //public string GetAddress...

    }

...

ANSWER

Answered 2021-Jun-14 at 15:30

Yes, this would work as you intended. However, even if you are working with a single-threaded application, keep in mind that this method is not thread-safe.

Still, to avoid going on a bug hunt when you need to use threads in your app, it is usually better to ensure thread safety precautionarily.

For example:

Source https://stackoverflow.com/questions/67971816

QUESTION

Dependency inject a custom file provider for runtime compilation

Asked 2021-Jun-14 at 14:15

I am experimenting with loading views from a database, and as suggested in the article one might want to add some caching to prevent hitting the database every time.

ConfigureServices:

...

ANSWER

Answered 2021-Jun-14 at 14:15

Use DI services to configure MvcRazorRuntimeCompilationOptions directly

Assuming a target provider like

Source https://stackoverflow.com/questions/67940714

QUESTION

ContextLoader - Root WebApplicationContext initialized 3 times on ubuntu tomcat

Asked 2021-Jun-14 at 12:43

Dears, I have a jersey - spring api deployed on apache tomcat 9.0.46. (Jersey to handle restful services JAX-RS and Spring to handle all my beans{controllers, DAO, SessionFactory, JPA etc...}). Everything works fine on tomcat 9 on windows... When deploying the exact same war in ubuntu tomcat 9.0.46, the ContextLoader is getting triggered 3 times and I have all my singletons instantiated 3 times. I'm deploying the api on tomcat ports 80 and 443 (https - godady certificate). once I start tomcat the war is deployed and ports 80 and 443 get started (netstat -tulnp | grep java) and I see in log all singletons instantiated. (pool-2) Applicationcontext class my custom spring @Configuration class and it is getting triggered and DB is accessed without any issues

...

ANSWER

Answered 2021-Jun-14 at 12:43

I have managed to figure out the problem. The issue was related to tomcat configuration in /conf/server.xml. Multiple Hosts will trigger the context loader to be triggered for each. I was keeping the default appBase to webapps for all host thus triggering the ContextLoader of each my war for each host. Another reason the ContextLoader will triggered multiple times as well is defining the option inside unless you need to load something external to your war. I recommend reading specs: https://tomcat.apache.org/tomcat-4.1-doc/config/host.html

Source https://stackoverflow.com/questions/67907215

QUESTION

org.springframework.security.web.access.AccessDeniedException: Access is Denied

Asked 2021-Jun-14 at 02:53

dispatcher-servlet.xml

...

ANSWER

Answered 2021-Jun-14 at 02:53

This issue is solved after correcting up my code

Source https://stackoverflow.com/questions/67764058

QUESTION

After guard let url the value still needs to be unwrapped

Asked 2021-Jun-13 at 10:59

In a singleton class I am trying the following code with 3 URLs stored in a dictionary:

...

ANSWER

Answered 2021-Jun-13 at 10:59

urls is actually of type [String: URL?]. Note that the value type is optional, because URL.init(string:) is failable.

When you try to get a value from this dictionary, you get a URL??. The guard only unwraps one layer of the optional.

One way to unwrap a nested optional (no matter how many layers), is to use as?:

Source https://stackoverflow.com/questions/67956910

QUESTION

Converting 2D array into 2D ArrayList that is backed by the original array

Asked 2021-Jun-13 at 01:52

I have looked through various examples on how to do this and I have got to this stage. My data import is copied into the array list but I am not seeing the data where I thought it would be.

When I use a 2D array it displays the imported data fine, but I want to be able to make changes to the data, hence the array list. I need the data to populate two things, first a Java Table and then I will reuse the data in an export to a spreadsheet. If you can just help me with the conversion of 2D array to a 2D (if this is what I need) ArrayList that would be great.

...

ANSWER

Answered 2021-Jun-13 at 01:52

a) Do the DataImport.dataImport(file_path) only once before loops, no need to read it all the time inside the loop

Source https://stackoverflow.com/questions/66917082

QUESTION

How to pass an array of setting values across multiple classes, efficiently

Asked 2021-Jun-11 at 18:32

I have a settings array of config values that don't change and need to use these values in various classes.

...

ANSWER

Answered 2021-Jun-05 at 17:51

If these values really are fixed, you could have the classes import a trait that holds the settings and also incorporates any common functionality you need.

Source https://stackoverflow.com/questions/67842691

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

Vulnerabilities

No vulnerabilities reported

Install singleton

You can install using 'pip install singleton' or download it from GitHub, PyPI.
You can use singleton like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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