Che: Python Hello, World! not working, 'Terminal can not connect', breakpoints are not hit.

Created on 8 Dec 2019 · 7Comments · Source: eclipse/che

Describe the bug

I am a new user. Started a python workspace with the Hello, World! workspace.

I am using https://che.openshift.io/ and was directed here to file a bug report.

I set a breakpoint in the two lines of the program, and load the Python debugging configuration.
When I start debugging, the breakpoints are not hit. The _ run window shows "Hello, World!" each time I try: execution completes.

Workspace definition:
metadata:
name: wksp-7k5f
projects:

name: python-hello-world
source:
location: 'https://github.com/che-samples/python-hello-world.git'
type: git
branch: master
attributes:
persistVolumes: 'false'
components:
id: ms-python/python/latest
memoryLimit: 512Mi
type: chePlugin
mountSources: true
memoryLimit: 512Mi
type: dockerimage
alias: python
image: 'quay.io/eclipse/che-python-3.7:nightly'
apiVersion: 1.0.0
commands:
name: run
actions:
- workdir: '${CHE_PROJECTS_ROOT}/python-hello-world'
  
  type: exec
  
  command: python hello-world.py
  
  component: python

When I attempt to execute the script in the debugger, I get a pop error "Terminal failed to connect. "
Contents of the output window:

Extension-Host:PLUGIN_HOST(49) starting instance
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/init()
Extension-Host:PLUGIN_HOST(49): initializing(@eclipse-che/[email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing(@eclipse-che/[email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing(@eclipse-che/[email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing(@eclipse-che/[email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing(@eclipse-che/[email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing([email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing(@theia/[email protected] with /home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/scanners/backend-init-theia.js)
Extension-Host:PLUGIN_HOST(49): initializing([email protected] with /home/theia/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init.js)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/vscode-unpacked/vscode-git-1.3.0.1.vsix/extension/out/main)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/theia_yeoman_plugin.theia/lib/theia-yeoman-plugin-backend-plugin.js)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/task_plugin.theia/lib/task-plugin-backend.js)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/eclipse_che_welcome_plugin.theia/lib/welcome-plugin.js)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/eclipse_che_theia_ssh_plugin.theia/lib/ssh-plugin-backend.js)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/eclipse_che_theia_factory_plugin.theia/lib/factory-plugin.js)
Extension-Host:Error parsing configurations: error: 4, length: 0, offset: 0
Extension-Host:Error parsing configurations: error: 4, length: 0, offset: 0
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/eclipse_che_theia_containers_plugin.theia/lib/containers-plugin.js)
Extension-Host:PLUGIN_HOST(49): PluginManagerExtImpl/loadPlugin(/tmp/theia-unpacked/eclipse_che_ports_plugin.theia/lib/ports-plugin.js)
Extension-Host:Child process git stderr: Cloning into '/projects/python-hello-world'...
Extension-Host:Child process "git" exited with code 0
Extension-Host:Child process "git" exited with code 0
Extension-Host:Child process "git" exited with code 0
Extension-Host:Child process "git" exited with code 0
Extension-Host:Child process "git" exited with code 0
Extension-Host:The port 39202 is no longer listening on interface 127.0.0.1
Extension-Host:The port 35400 is no longer listening on interface 127.0.0.1
Extension-Host:The port 41325 is no longer listening on interface 127.0.0.1

Che version

Che-Theia@ad8e4f4 using Theia@f255f5a8

Steps to reproduce

Make a new python workspace.

Expected behavior

Runtime

[ ] kubernetes (include output of kubectl version)
[ ] Openshift (include output of oc version)
[ ] minikube (include output of minikube version and kubectl version)
[ ] minishift (include output of minishift version and oc version)
[ ] docker-desktop + K8S (include output of docker version and kubectl version)
[ ] other: (please specify)

Screenshots

Installation method

[ ] chectl
[ ] che-operator
[ ] minishift-addon
[ ] I don't know

Environment

[ ] my computer
- [ ] Windows
- [ ] Linux
- [ ] macOS
[ ] Cloud
- [ ] Amazon
- [ ] Azure
- [ ] GCE
- [ ] other (please specify)
[ ] other: please specify

Additional context

arelanguages kinquestion statuanalyzing tealanguages

Source

timrichardson

All 7 comments

@timrichardson
Make sure you use internalConsole in a debug configuration.
Supporting of integrationTerminal hasn't been deployed yet.

{
    // Use IntelliSense to learn about possible attributes.
    // Hover to view descriptions of existing attributes.
    "version": "0.2.0",
    "configurations": [
        {
            "name": "Python: Current File",
            "type": "python",
            "request": "launch",
            "program": "${file}",
            "console": "internalConsole"
        }
    ]
}

tolusha on 9 Dec 2019

👍1

@ibuziuk
integratedTerminal has been recently added in Theia but we don't have it yet on che.openshift.io.

tolusha on 9 Dec 2019

.... leaving me confused. It's 'hello world', it should just work :)

timrichardson on 9 Dec 2019

👍1

/cc @tsmaeder

tolusha on 9 Dec 2019

Removing osio label since this is not Hosted Che specific

ibuziuk on 9 Dec 2019

.... leaving me confused. It's 'hello world', it should just work :)

As VS Code API evolves, extensions start using new API's. So we are playing a game of catch-up with the good folks at Microsoft. Support for using integratedTerminal debug configuration has recently been added to Che/Theia, but is not yet deployed on che.openshift.io. Sometimes it makes sense to use a newer version of a VS Code extension, even though some things need to be worked around.
The workaround is to edit the python debug configuration you're using and change integratedTerminal to internalConsole.