Python extension does not work on the remote host

[rickysixx]

I am trying to work on a Python project hosted on a remote machine I connect to using the Open Remote - SSH extension.

I have installed the ms-python/python extension on the remote server:

The installation seems to be successful, because in the command palette I find some commands related to that extension:

even though none of these commands works:

Anyway, the main problem is that I don't get any editor assistance when I edit a Python file on the remote host (no intellisense, no linting, etc.).

On my local environment, instead, the Python extension works without any issues.

This is the output of Help > About:

Version: 1.87.0
Commit: 019f4d1419fbc8219a181fab7892ebccf7ee29a2
Date: 2024-03-01T14:16:19.238Z
Electron: 27.3.4
ElectronBuildId: undefined
Chromium: 118.0.5993.159
Node.js: 18.17.1
V8: 11.8.172.18-electron.0
OS: Linux x64 6.7.6-arch1-2

I am running Arch Linux on my local environment, while the remote server runs Debian 12.

[jeanp413]

Looks like the extension failed to activate, can you share logs of the python extension and remote extension host

[rickysixx]

Hi @jeanp413, sure!

Here are the logs of Remote - SSH:

[Info  - 21:33:25.672] Resolving ssh remote authority 'ssh-remote+root@gamemaster' (attemp #1)
[Info  - 21:33:26.66] Trying password authentication
[Trace  - 21:33:29.111] Server install command:

# Server installation script

TMP_DIR="${XDG_RUNTIME_DIR:-"/tmp"}"

DISTRO_VERSION="1.87.0"
DISTRO_COMMIT="019f4d1419fbc8219a181fab7892ebccf7ee29a2"
DISTRO_QUALITY="stable"
DISTRO_VSCODIUM_RELEASE=""

SERVER_APP_NAME="code-server-oss"
SERVER_INITIAL_EXTENSIONS=""
SERVER_LISTEN_FLAG="--port=0"
SERVER_DATA_DIR="$HOME/.vscode-server-oss"
SERVER_DIR="$SERVER_DATA_DIR/bin/$DISTRO_COMMIT"
SERVER_SCRIPT="$SERVER_DIR/bin/$SERVER_APP_NAME"
SERVER_LOGFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.log"
SERVER_PIDFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.pid"
SERVER_TOKENFILE="$SERVER_DATA_DIR/.$DISTRO_COMMIT.token"
SERVER_ARCH=
SERVER_CONNECTION_TOKEN=
SERVER_DOWNLOAD_URL=

LISTENING_ON=
OS_RELEASE_ID=
ARCH=
PLATFORM=

# Mimic output from logs of remote-ssh extension
print_install_results_and_exit() {
    echo "35556214c8016c02cf5c8b5f: start"
    echo "exitCode==$1=="
    echo "listeningOn==$LISTENING_ON=="
    echo "connectionToken==$SERVER_CONNECTION_TOKEN=="
    echo "logFile==$SERVER_LOGFILE=="
    echo "osReleaseId==$OS_RELEASE_ID=="
    echo "arch==$ARCH=="
    echo "platform==$PLATFORM=="
    echo "tmpDir==$TMP_DIR=="
    
    echo "35556214c8016c02cf5c8b5f: end"
    exit 0
}

# Check if platform is supported
KERNEL="$(uname -s)"
case $KERNEL in
    Darwin)
        PLATFORM="darwin"
        ;;
    Linux)
        PLATFORM="linux"
        ;;
    FreeBSD)
        PLATFORM="freebsd"
        ;;
    DragonFly)
        PLATFORM="dragonfly"
        ;;
    *)
        echo "Error platform not supported: $KERNEL"
        print_install_results_and_exit 1
        ;;
esac

# Check machine architecture
ARCH="$(uname -m)"
case $ARCH in
    x86_64 | amd64)
        SERVER_ARCH="x64"
        ;;
    armv7l | armv8l)
        SERVER_ARCH="armhf"
        ;;
    arm64 | aarch64)
        SERVER_ARCH="arm64"
        ;;
    ppc64le)
        SERVER_ARCH="ppc64le"
        ;;
    *)
        echo "Error architecture not supported: $ARCH"
        print_install_results_and_exit 1
        ;;
esac

# https://www.freedesktop.org/software/systemd/man/os-release.html
OS_RELEASE_ID="$(grep -i '^ID=' /etc/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
if [[ -z $OS_RELEASE_ID ]]; then
    OS_RELEASE_ID="$(grep -i '^ID=' /usr/lib/os-release 2>/dev/null | sed 's/^ID=//gi' | sed 's/"//g')"
    if [[ -z $OS_RELEASE_ID ]]; then
        OS_RELEASE_ID="unknown"
    fi
fi

# Create installation folder
if [[ ! -d $SERVER_DIR ]]; then
    mkdir -p $SERVER_DIR
    if (( $? > 0 )); then
        echo "Error creating server install directory"
        print_install_results_and_exit 1
    fi
fi

SERVER_DOWNLOAD_URL="$(echo "https://github.com/gitpod-io/openvscode-server/releases/download/openvscode-server-v1.84.0/openvscode-server-v1.84.0-\${os}-\${arch}.tar.gz" | sed "s/\${quality}/$DISTRO_QUALITY/g" | sed "s/\${version}/$DISTRO_VERSION/g" | sed "s/\${commit}/$DISTRO_COMMIT/g" | sed "s/\${os}/$PLATFORM/g" | sed "s/\${arch}/$SERVER_ARCH/g" | sed "s/\${release}/$DISTRO_VSCODIUM_RELEASE/g")"

# Check if server script is already installed
if [[ ! -f $SERVER_SCRIPT ]]; then
    if [[ "$PLATFORM" != "darwin" ]] && [[ "$PLATFORM" != "linux" ]]; then
        echo "Error "$PLATFORM" needs manual installation of remote extension host"
        print_install_results_and_exit 1
    fi

    pushd $SERVER_DIR > /dev/null

    if [[ ! -z $(which wget) ]]; then
        wget --tries=3 --timeout=10 --continue --no-verbose -O vscode-server.tar.gz $SERVER_DOWNLOAD_URL
    elif [[ ! -z $(which curl) ]]; then
        curl --retry 3 --connect-timeout 10 --location --show-error --silent --output vscode-server.tar.gz $SERVER_DOWNLOAD_URL
    else
        echo "Error no tool to download server binary"
        print_install_results_and_exit 1
    fi

    if (( $? > 0 )); then
        echo "Error downloading server from $SERVER_DOWNLOAD_URL"
        print_install_results_and_exit 1
    fi

    tar -xf vscode-server.tar.gz --strip-components 1
    if (( $? > 0 )); then
        echo "Error while extracting server contents"
        print_install_results_and_exit 1
    fi

    if [[ ! -f $SERVER_SCRIPT ]]; then
        echo "Error server contents are corrupted"
        print_install_results_and_exit 1
    fi

    rm -f vscode-server.tar.gz

    popd > /dev/null
else
    echo "Server script already installed in $SERVER_SCRIPT"
fi

# Try to find if server is already running
if [[ -f $SERVER_PIDFILE ]]; then
    SERVER_PID="$(cat $SERVER_PIDFILE)"
    SERVER_RUNNING_PROCESS="$(ps -o pid,args -p $SERVER_PID | grep $SERVER_SCRIPT)"
else
    SERVER_RUNNING_PROCESS="$(ps -o pid,args -A | grep $SERVER_SCRIPT | grep -v grep)"
fi

if [[ -z $SERVER_RUNNING_PROCESS ]]; then
    if [[ -f $SERVER_LOGFILE ]]; then
        rm $SERVER_LOGFILE
    fi
    if [[ -f $SERVER_TOKENFILE ]]; then
        rm $SERVER_TOKENFILE
    fi

    touch $SERVER_TOKENFILE
    chmod 600 $SERVER_TOKENFILE
    SERVER_CONNECTION_TOKEN="7d1ed0b3-fe85-4c84-aff9-bc947358ee41"
    echo $SERVER_CONNECTION_TOKEN > $SERVER_TOKENFILE

    $SERVER_SCRIPT --start-server --host=127.0.0.1 $SERVER_LISTEN_FLAG $SERVER_INITIAL_EXTENSIONS --connection-token-file $SERVER_TOKENFILE --telemetry-level off --enable-remote-auto-shutdown --accept-server-license-terms &> $SERVER_LOGFILE &
    echo $! > $SERVER_PIDFILE
else
    echo "Server script is already running $SERVER_SCRIPT"
fi

if [[ -f $SERVER_TOKENFILE ]]; then
    SERVER_CONNECTION_TOKEN="$(cat $SERVER_TOKENFILE)"
else
    echo "Error server token file not found $SERVER_TOKENFILE"
    print_install_results_and_exit 1
fi

if [[ -f $SERVER_LOGFILE ]]; then
    for i in {1..5}; do
        LISTENING_ON="$(cat $SERVER_LOGFILE | grep -E 'Extension host agent listening on .+' | sed 's/Extension host agent listening on //')"
        if [[ -n $LISTENING_ON ]]; then
            break
        fi
        sleep 0.5
    done

    if [[ -z $LISTENING_ON ]]; then
        echo "Error server did not start sucessfully"
        print_install_results_and_exit 1
    fi
else
    echo "Error server log file not found $SERVER_LOGFILE"
    print_install_results_and_exit 1
fi

# Finish server setup
print_install_results_and_exit 0

[Trace  - 21:33:29.246] Server install command stdout:
Server script already installed in /root/.vscode-server-oss/bin/019f4d1419fbc8219a181fab7892ebccf7ee29a2/bin/code-server-oss
Server script is already running /root/.vscode-server-oss/bin/019f4d1419fbc8219a181fab7892ebccf7ee29a2/bin/code-server-oss
35556214c8016c02cf5c8b5f: start
exitCode==0==
listeningOn==37689==
connectionToken==c873a934-a0be-4d9d-ad26-c034edffa374==
logFile==/root/.vscode-server-oss/.019f4d1419fbc8219a181fab7892ebccf7ee29a2.log==
osReleaseId==debian==
arch==x86_64==
platform==linux==
tmpDir==/run/user/0==
35556214c8016c02cf5c8b5f: end

[Trace  - 21:33:29.249] Creating forwarding server 39689(local) => 40985(socks) => 37689(remote)

Side note: it's intentional that the Code OSS Server runs as the root user. This is a virtual machine I setup to test some code that needs to run as root.

I can't find any logs from the Python extension instead. I don't see it in the output list neither:

In the remote server I find the extension file ms-python.python-2024.2.1-universal in the ~/.openvscode-server/extensions directory:

root@gamemaster:~/.openvscode-server/extensions# ls -l
total 12
-rw-r--r--  1 root root 1227 Mar  3 16:08 extensions.json
drwxr-xr-x  4 root root 4096 Mar  3 14:58 ms-python.debugpy-2024.0.0-linux-x64
drwxr-xr-x 12 root root 4096 Mar  3 14:58 ms-python.python-2024.2.1-universal

but I don't know if this is enough to say that the Python extension was correctly installed/activated.

EDIT

Today I was able to get other logs.

These are Server logs after installing the Python extension:

2024-03-03 16:54:37.708 [info] 




2024-03-03 16:54:37.708 [info] Extension host agent started.
2024-03-03 16:54:37.708 [info] Started initializing default profile extensions in extensions installation folder. file:///root/.openvscode-server/extensions
2024-03-03 16:54:38.566 [info] Completed initializing default profile extensions in extensions installation folder. file:///root/.openvscode-server/extensions
2024-03-03 16:54:38.608 [info] [127.0.0.1][1fe0c59e][ManagementConnection] New connection established.
2024-03-03 16:54:38.681 [info] [127.0.0.1][8d8bb6cf][ExtensionHostConnection] New connection established.
2024-03-03 16:54:38.777 [info] [127.0.0.1][8d8bb6cf][ExtensionHostConnection] <22601> Launched Extension Host Process.
2024-03-03 16:54:55.597 [info] [127.0.0.1][1fe0c59e][ManagementConnection] The client has disconnected gracefully, so the connection will be disposed.
2024-03-03 16:54:55.619 [info] [127.0.0.1][8d8bb6cf][ExtensionHostConnection] <22601> Extension Host Process exited with code: 0, signal: null.
2024-03-03 16:54:55.619 [info] Cancelling previous shutdown timeout
2024-03-03 16:54:55.619 [info] Last EH closed, waiting before shutting down
2024-03-03 16:54:59.788 [info] [127.0.0.1][4d5d9e19][ManagementConnection] New connection established.
2024-03-03 16:54:59.788 [info] [127.0.0.1][6a95e34a][ExtensionHostConnection] New connection established.
2024-03-03 16:54:59.795 [info] [127.0.0.1][6a95e34a][ExtensionHostConnection] <22708> Launched Extension Host Process.
2024-03-03 16:55:19.433 [info] Getting Manifest... ms-python.python
2024-03-03 16:55:21.031 [info] Installing extension: ms-python.python
2024-03-03 16:55:22.013 [info] Getting Manifest... ms-python.debugpy
2024-03-03 16:55:22.725 [info] Installing extension: ms-python.debugpy ms-python.python
2024-03-03 16:55:26.219 [info] Extension signature verification is not done: ms-python.debugpy
2024-03-03 16:55:26.985 [info] Extracted extension to file:///root/.openvscode-server/extensions/ms-python.debugpy-2024.0.0-linux-x64: ms-python.debugpy
2024-03-03 16:55:27.035 [info] Renamed to /root/.openvscode-server/extensions/ms-python.debugpy-2024.0.0-linux-x64
2024-03-03 16:55:27.043 [info] Extracting extension completed. ms-python.debugpy
2024-03-03 16:55:32.328 [info] Extension signature verification is not done: ms-python.python
2024-03-03 16:55:34.854 [info] Extracted extension to file:///root/.openvscode-server/extensions/ms-python.python-2024.2.1-universal: ms-python.python
2024-03-03 16:55:35.088 [info] Renamed to /root/.openvscode-server/extensions/ms-python.python-2024.2.1-universal
2024-03-03 16:55:35.108 [info] Extracting extension completed. ms-python.python
2024-03-03 16:55:35.219 [info] Extension installed successfully: ms-python.debugpy
2024-03-03 16:55:35.219 [info] Extension installed successfully: ms-python.python
2024-03-03 16:59:55.622 [info] New EH opened, aborting shutdown

I noticed that in the Remote Tunnel Service logs there are some errors:

2024-03-05 12:10:30.754 [error] Missing 'tunnelApplicationConfig' or 'tunnelApplicationName' in product.json. Remote tunneling is not available.
2024-03-05 12:10:37.235 [error] Missing 'tunnelApplicationConfig' or 'tunnelApplicationName' in product.json. Remote tunneling is not available.
2024-03-05 12:12:15.963 [error] Missing 'tunnelApplicationConfig' or 'tunnelApplicationName' in product.json. Remote tunneling is not available.
2024-03-05 12:12:38.795 [error] Missing 'tunnelApplicationConfig' or 'tunnelApplicationName' in product.json. Remote tunneling is not available.

but I think this is not the problem here as the issue is expected (see here).

[jeanp413]

@rickysixx Looks like you are using code-oss and have overrided the server download url, your are using 1.87.0 locally but the remote server is 1.84.0, so just fix the download url and it should work.

[rickysixx]

That fixed my problem, thanks @jeanp413!