Eclipse Theia Python

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Hello World plug-in: The plug-in registers a new Che-Theia command. When the user launches this command, Che-Theia displays a notification with the Hello World message. The example illustrates how to define and use commands in Che-Theia. Skeleton plug-in: The plug-in prints the current Che-Theia window state in the browser log. This issue is reproducible using the official python docker container theiaide/theia-python:latest. Please note these images are not 'official', they are used as examples for application developers to create their own applications, and are used for continuous integration purposes. Eclipse Che provides a default web IDE for workspaces: Che-Theia. It is based on Eclipse Theia. It is a slightly different version than the plain Eclipse Theia one because there are functionalities that have been added based on the nature of the Eclipse Che workspaces. This version of Eclipse Theia for Che is called Che-Theia. 'code-server' or 'Eclipse Theia' 'Gitpod' 'Jupyter Lab' ただし,Gitpod以外はiPad以外に別途PCを準備する必要があります. 調べてみた感じ,iPad単体でtensorflowのお勉強をする方法は見つからず,いずれの方法もLinux,あるいはWindowsのOS上でPythonを実行させることとなります..

This guide will teach you how to build your own Theia application.

Requirements

The detailed list of prerequisites is located at the main Theia repository:

Setup

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Start with creating a new empty directory and moving into it:

Create package.json in this directory:

In a nutshell, Theia applications and extensions are Node.js packages. Each package has a package.json file that manifests package metadata,like name, version, its runtime and build time dependencies and so on.

Let's have a look at the created package:

Eclipse Theia Python
  • Its name and version are omitted since we are not going to use it as a dependency, andit's marked as private since it is not going to be published as a Node.js package on its own.
  • We've listed required extensions as runtime dependencies, e.g. @theia/navigator.

    • Some extensions require additional tooling installed,For instance, @theia/python requiresthe Python Language Server to be installed.In such cases, please consult the corresponding extension documentation.
    • Use this link to see all published extensions.
  • We've listed @theia/cli as a build-time dependency. It provides scripts to build and run the application.

Consuming VS Code Extensions

As part of your application, it is also possible to consume (and package) VS Code extensions.The Theia repository contains a guide on how toinclude such extensions as part of the application's package.json.

An example package.json may look like the following:

Building

First, install all dependencies.

Second, use Theia CLI to build the application.

yarn looks up theia executable provided by @theia/cli in the context of our applicationand then executes the build command with theia.This can take a while since the application is built in production mode by default,i.e. obfuscated and minified.

Running

After the build is finished, we can start the application:

You can provide a workspace path to open as a first argumentand --hostname, --port options to deploy the application on specific network interfaces and ports,e.g. to open /workspace on all interfaces and port 8080:

In the terminal, you should see that Theia application is up and listening:

Open the application by entering the printed address in a new browser page.

Troubleshooting

Plugins not appearing

If no plugins are available in the running Theia instance, it may be that you need to tell Theia where to find the downloaded plugins.The example above sets the --plugins switch in the start command which should be sufficient.However if running theia start directly, you can alternatively set an environment variable to achieve the same thing:

Building native dependencies behind a proxy

If you run the yarn command behind a proxy you may encounter issues in building native dependencies (like oniguruma), in the last part of the build, with the following error stack:

This happens because node-gyp does not rely on system/NPM proxy settings. In that case, download the node-headers file using the link provided in the error stack(in the example above https://nodejs.org/download/release/v8.15.0/node-v8.15.0-headers.tar.gz) and run the build with the following command:

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Eclipse Che comes with a web-based IDE, based on Eclipse Theia which provides an in-browser VSCode experience complete with the latest tooling protocols: language server, debug adapter and compatibility with VSCode extensions. If you prefer desktop IDE’s, Che supports that too and you get the advantages of Che’s workspaces. Eclipse Che also gives you access to interact with your containers, instruct commands and terminals.