VS Code Python extension

[jgbradley1]

Motivated by this idea, this is a first attempt to replace @theia/python with the VS Code Python extension. The main focus is on supporting Python 3.

This will also address #2459. The following output is generated on startup. I don't see any major error messages from the extension.

What works or doesn't work:

• [x] intellisense
• [x] code navigation
• [x] code formatting
• [x] linting - does not work if user selects to try the "Preview of the new Python Language Server" (see screenshot below)
• [ ] jupyter notebook support

Startup Log

yarn run v1.13.0
$ /home/theia/node_modules/.bin/theia start --plugins=local-dir:./plugins --hostname=0.0.0.0 /home/project
root INFO Theia app listening on http://0.0.0.0:3000.
root INFO unzipping the plugin ProxyPluginDeployerEntry {
  deployer:
   PluginVsCodeFileHandler { unpackedFolder: '/tmp/vscode-unpacked' },
  delegate:
   PluginDeployerEntryImpl {
     originId: 'local-dir:./plugins',
     pluginId: 'ms-python-release.vsix',
     map: Map {},
     changes: [],
     acceptedTypes: [],
     currentPath: '/home/theia/plugins/ms-python-release.vsix',
     initPath: '/home/theia/plugins/ms-python-release.vsix',
     resolved: true,
     resolvedByName: 'LocalDirectoryPluginDeployerResolver' },
  deployerName: 'PluginVsCodeFileHandler' }
root INFO PluginTheiaDirectoryHandler: accepting plugin with path /tmp/vscode-unpacked/ms-python-release.vsix
root INFO Resolved "ms-python-release.vsix" to a VS Code extension "python@2019.3.6558" with engines: { vscode: '^1.31.0' }
root INFO Deploying backend plugin "python@2019.3.6558" from "/tmp/vscode-unpacked/ms-python-release.vsix/extension/out/client/extension"
root INFO Using Git [2.11.0] from the PATH. (/usr/bin/git)
root WARN e.onStart is slow, took: 158.91999999985273 ms
root INFO [nsfw-watcher: 45] Started watching: /root/.theia
root INFO [nsfw-watcher: 45] Started watching: /home/project
root INFO [nsfw-watcher: 45] Started watching: /home/project
root WARN e.onStart is slow, took: 199.8199999998178 ms
root INFO [nsfw-watcher: 45] Started watching: /home/project
terminal ERROR Couldn't attach - can't find terminal with id: 0
terminal ERROR Couldn't attach - can't find terminal with id: 2
terminal ERROR Couldn't attach - can't find terminal with id: 1
root INFO [hosted-plugin: 62] PLUGIN_HOST(62) starting instance

root WARN Plugin contributes items to a menu with invalid identifier: view/title
root WARN Collided keybinding is ignored;  {"command":"python.datascience.execSelectionInteractive","keybinding":"shift+enter"}  collided with  {"command":"python.execSelectionInTerminal","keybinding":"shift+enter"}
root WARN Could not register keybinding:
  {"command":"python.datascience.execSelectionInteractive","keybinding":"shift+enter"}
Error: "shift+enter" is in collision with something else [scope:1]
root WARN Collided keybinding is ignored;  {"command":"python.datascience.runcurrentcelladvance","keybinding":"shift+enter"}  collided with  {"command":"python.execSelectionInTerminal","keybinding":"shift+enter"}
root WARN Could not register keybinding:
  {"command":"python.datascience.runcurrentcelladvance","keybinding":"shift+enter"}
Error: "shift+enter" is in collision with something else [scope:1]
terminal ERROR Error attaching to terminal id 0, the terminal is most likely gone. Starting up a new terminal instead.
terminal ERROR Error attaching to terminal id 2, the terminal is most likely gone. Starting up a new terminal instead.
terminal ERROR Error attaching to terminal id 1, the terminal is most likely gone. Starting up a new terminal instead.
root INFO Config file tasks.json does not exist under file:///home/project
root INFO [hosted-plugin: 62] PLUGIN_HOST(62): PluginManagerExtImpl/init()

root INFO [hosted-plugin: 62] PLUGIN_HOST(62): initializing(/home/theia/node_modules/@theia/plugin-ext-vscode/lib/node/plugin-vscode-init.js)

root WARN Couldn't restore widget for code-editor-opener. Error: Error: 'file:///home/project/test.py' has not been found.
root INFO [hosted-plugin: 62] Debugger contribution has been registered: python

root INFO [hosted-plugin: 62] PLUGIN_HOST(62): PluginManagerExtImpl/loadPlugin(/tmp/vscode-unpacked/ms-python-release.vsix/extension/out/client/extension)

root ERROR [hosted-plugin: 62] (node:62) [DEP0005] DeprecationWarning: Buffer() is deprecated due to security and usability issues. Please use the Buffer.alloc(), Buffer.allocUnsafe(), or Buffer.from() methods instead.

root INFO [hosted-plugin: 62] Debug configuration provider has been registered: python

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Create file systemwatcher with pattern */python

root INFO [hosted-plugin: 62] Python Extension: Create file systemwatcher with pattern */*/python

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Register Intepreter Watcher, Class name = f, Arg 1: <Uri:/home/project>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Build the workspace interpreter watcher, Class name = h, Arg 1: <Uri:/home/project>, Return Value: <Return value cannot be serialized for logging>

root INFO [hosted-plugin: 62] Python Extension: Rule = settings, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from settings

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Detection of Python Interpreter for Command python3.7 and args  failed

root INFO [hosted-plugin: 62] Python Extension: Detection of Python Interpreter for Command python3.6 and args  failed

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>
Python Extension: Cached data exists getEnvironmentVariables, <No Resource>
Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>
Python Extension: Cached data exists getEnvironmentVariables, <No Resource>
Python Extension: Cached data exists getEnvironmentVariables, <No Resource>
Python Extension: Cached data exists getEnvironmentVariables, <No Resource>
Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by CondaEnvFileService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by PipEnvService are of count 0
Python Extension: Interpreters returned by WorkspaceVirtualEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by PipEnvService are of count 0
Python Extension: Interpreters returned by WorkspaceVirtualEnvService are of count 0
Python Extension: Interpreters returned by CondaEnvService are of count 0
Python Extension: Interpreters returned by VirtualEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Selected Interpreter from workspaceEnvs, Nothing Selected
Python Extension: Rule = workspaceEnvs, result = runNextRule
Python Extension: Executing next rule from workspaceEnvs

root INFO [hosted-plugin: 62] Python Extension: Current value for rule system is nothing
Python Extension: Current value for rule currentPath is nothing
Python Extension: Current value for rule windowsRegistry is nothing

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from cachedInterpreters, Nothing Selected

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: undefined, Arg 2: <argument cannot be serialized for logging>, Return Value: false
Python Extension: Rule = cachedInterpreters, result = runNextRule
Python Extension: Executing next rule from cachedInterpreters

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by CurrentPathService are of count 4

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from currentPath, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by KnownPathsService are of count 10

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: true

root INFO [hosted-plugin: 62] Python Extension: Hide locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: All locators have completed locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}, Arg 2: <argument cannot be serialized for logging>, Return Value: true

root INFO [hosted-plugin: 62] Python Extension: Rule = currentPath, result = exit

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Current value for rule system is nothing

root INFO [hosted-plugin: 62] Python Extension: Current value for rule currentPath is {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}
Python Extension: Current value for rule windowsRegistry is nothing
Python Extension: Selected Interpreter from cachedInterpreters, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, /home/project

root INFO [hosted-plugin: 62] Python Extension: Rule = windowsRegistry, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from windowsRegistry
Python Extension: Rule = settings, result = runNextRule
Python Extension: Executing next rule from settings

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Return Value: undefined
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking support of .NET, Class name = u, , Return Value: true

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, /home/project

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from currentPath, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from system, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown","displayName":"Python 3.5.3 64-bit"}

root INFO [hosted-plugin: 62] Python Extension: Rule = settings, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from settings

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}, Arg 2: undefined, Return Value: false
Python Extension: Rule = cachedInterpreters, result = runNextRule
Python Extension: Executing next rule from cachedInterpreters
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}, Arg 2: undefined, Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Rule = currentPath, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from currentPath

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by PipEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by WorkspaceVirtualEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown","displayName":"Python 3.5.3 64-bit"}, Arg 2: undefined, Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Rule = system, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from system
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Selected Interpreter from workspaceEnvs, Nothing Selected
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Rule = workspaceEnvs, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from workspaceEnvs
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: <Uri:/home/project>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by PipEnvService are of count 0
Python Extension: Interpreters returned by WorkspaceVirtualEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, /home/project

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: true

root INFO [hosted-plugin: 62] Python Extension: Hide locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: All locators have completed locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from workspaceEnvs, Nothing Selected

root INFO [hosted-plugin: 62] Python Extension: Rule = workspaceEnvs, result = runNextRule
Python Extension: Executing next rule from workspaceEnvs

root INFO [hosted-plugin: 62] Python Extension: Current value for rule system is {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown","displayName":"Python 3.5.3 64-bit"}
Python Extension: Current value for rule currentPath is {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}
Python Extension: Current value for rule windowsRegistry is nothing
Python Extension: Selected Interpreter from cachedInterpreters, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}, Arg 2: <argument cannot be serialized for logging>, Return Value: true
Python Extension: Rule = cachedInterpreters, result = exit

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Arg 2: <argument cannot be serialized for logging>, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Rule = windowsRegistry, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from windowsRegistry

root INFO [hosted-plugin: 62] Python Extension: Rule = settings, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from settings

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Return Value: undefined
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Cached data exists getEnvironmentVariables, <No Resource>

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from currentPath, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Create file systemwatcher with pattern */python

root INFO [hosted-plugin: 62] Python Extension: Create file systemwatcher with pattern */*/python

root INFO [hosted-plugin: 62] Python Extension: Display locator refreshing progress, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Notify locators are locating, Class name = p, , Return Value: undefined
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Detected refreshing of Interpreters, Class name = p, Arg 1: {}, Return Value: undefined
Python Extension: Register Intepreter Watcher, Class name = f, Arg 1: undefined, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Build the workspace interpreter watcher, Class name = h, Arg 1: undefined, Return Value: <Return value cannot be serialized for logging>

root INFO [hosted-plugin: 62] Python Extension: Current value for rule system is {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown","displayName":"Python 3.5.3 64-bit"}

root INFO [hosted-plugin: 62] Python Extension: Current value for rule currentPath is {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}
Python Extension: Current value for rule windowsRegistry is nothing
Python Extension: Selected Interpreter from cachedInterpreters, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}

root INFO [hosted-plugin: 62] Python Extension: Current value for rule workspaceEnvs is nothing

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}, Arg 2: undefined, Return Value: false
Python Extension: Rule = currentPath, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from currentPath
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown"}, Arg 2: undefined, Return Value: false
Python Extension: Rule = cachedInterpreters, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from cachedInterpreters
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by PipEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by WorkspaceVirtualEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false
Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from workspaceEnvs, Nothing Selected
Python Extension: Rule = workspaceEnvs, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from workspaceEnvs

root INFO [hosted-plugin: 62] Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by PipEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Interpreters returned by WorkspaceVirtualEnvService are of count 0

root INFO [hosted-plugin: 62] Python Extension: Checking whether locactors have completed locating, Class name = p, , Return Value: true

root INFO [hosted-plugin: 62] Python Extension: Hide locator refreshing progress, Class name = p, , Return Value: undefined
Python Extension: All locators have completed locating, Class name = p, , Return Value: undefined

root INFO [hosted-plugin: 62] Python Extension: Selected Interpreter from system, {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown","displayName":"Python 3.5.3 64-bit"}

root INFO [hosted-plugin: 62] Python Extension: setGlobalInterpreter, Class name = g, Arg 1: {"architecture":3,"path":"/usr/bin/python3","version":{"raw":"3.5.3-final","major":3,"minor":5,"patch":3,"prerelease":["final"],"build":[],"version":"3.5.3-final"},"sysPrefix":"/usr","fileHash":"6cfd0c2e2d74b8be58edc647fe94645026e7bf0aa3ad909eb6a14d195c223637b6805ea0fb9db160c216e1cca37ab193712194a0fd2155896d4c015a137f57ba","type":"Unknown","displayName":"Python 3.5.3 64-bit"}, Arg 2: undefined, Return Value: false

root INFO [hosted-plugin: 62] Python Extension: Rule = system, result = runNextRule

root INFO [hosted-plugin: 62] Python Extension: Executing next rule from system
Python Extension: autoSelectInterpreter, Class name = g, Arg 1: undefined, Return Value: undefined

[yeweiasia]

vscode python plugin works well on my machine

[jgbradley1]

Jupyter notebook support does not seem to work as expected. Linting doesn't show errors in the Problems window when the Preview version of the language server is used. After converting a Jupyter notebook to a new python file, there are problems starting up the interactive Jupyter console.

[akosyakov]

Linking https://github.com/theia-ide/theia/issues/3186#issuecomment-482524802

[jgbradley1]

I see the following error messages continuously get reported on the backend. Looks like there are a few API points to address.

CommandRegistryMain

(node:62) UnhandledPromiseRejectionWarning: Error: Unknown actor CommandRegistryMain
    at RPCProtocolImpl.doInvokeHandler (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:194:19)
    at RPCProtocolImpl.invokeHandler (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:186:41)
    at RPCProtocolImpl.receiveRequest (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:148:45)
    at RPCProtocolImpl.receiveOneMessage (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:122:22)
    at /home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:55:89
    at /home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:227:17
    at /home/theia/node_modules/@theia/core/lib/common/event.js:161:33
    at CallbackList.invoke (/home/theia/node_modules/@theia/core/lib/common/event.js:176:39)
    at Emitter.fire (/home/theia/node_modules/@theia/core/lib/common/event.js:264:29)
    at ChildProcess.<anonymous> (/home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/hosted-plugin-process.js:117:21)
(node:62) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 34)

LanguagesMain

(node:62) UnhandledPromiseRejectionWarning: Error: Unknown actor LanguagesMain
    at RPCProtocolImpl.doInvokeHandler (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:194:19)
    at RPCProtocolImpl.invokeHandler (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:186:41)
    at RPCProtocolImpl.receiveRequest (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:148:45)
    at RPCProtocolImpl.receiveOneMessage (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:122:22)
    at /home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:55:89
    at /home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:227:17
    at /home/theia/node_modules/@theia/core/lib/common/event.js:161:33
    at CallbackList.invoke (/home/theia/node_modules/@theia/core/lib/common/event.js:176:39)
    at Emitter.fire (/home/theia/node_modules/@theia/core/lib/common/event.js:264:29)
    at ChildProcess.<anonymous> (/home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/hosted-plugin-process.js:117:21)
(node:62) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 41)

WorkspaceMain

(node:62) UnhandledPromiseRejectionWarning: Error: Unknown actor WorkspaceMain
    at RPCProtocolImpl.doInvokeHandler (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:194:19)
    at RPCProtocolImpl.invokeHandler (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:186:41)
    at RPCProtocolImpl.receiveRequest (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:148:45)
    at RPCProtocolImpl.receiveOneMessage (/home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:122:22)
    at /home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:55:89
    at /home/theia/node_modules/@theia/plugin-ext/lib/api/rpc-protocol.js:227:17
    at /home/theia/node_modules/@theia/core/lib/common/event.js:161:33
    at CallbackList.invoke (/home/theia/node_modules/@theia/core/lib/common/event.js:176:39)
    at Emitter.fire (/home/theia/node_modules/@theia/core/lib/common/event.js:264:29)
    at ChildProcess.<anonymous> (/home/theia/node_modules/@theia/plugin-ext/lib/hosted/node/hosted-plugin-process.js:117:21)
(node:62) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 47)

[fGencturk]

@jgbradley1 I have installed vscode-python extension to theia. When I first created a .ipynb file everything works perfectly. Then, even if I exit without saving the file, I cannot open it again. If I delete it and re-create a file with the same name, same error occurs. With a different name, I do not get any errors.

I know jupyter notebook support is written as those that does NOT work in theia, but it almost does; it perfectly works in those newly created files.

[tsmaeder]

The python extension now activates successfully, for the notebook support, we have https://github.com/eclipse-theia/theia/issues/9867