%paste system clipboard from wls2

[duke13137]

I use ipython from wsl2 in windows terminal and vscode remote (both has keymap sending %paste without switch editor panel). One problem is that %paste gives

In [50]: %paste
ERROR:root:Getting text from the clipboard on this platform requires tkinter.

Since wsl2 is headless GUI, I don't think tkinter would work either. I found a workaround that seems working fine (a bit hacky). Post it here in case anyone is interested. Ideally, ipython could detect wsl2 and include this function.

First, find out ipython package path by "pip show ipython", then "find -name clipboard.py"

Replace tkinter_clipboard_get with below code.

def tkinter_clipboard_get():
    """ Get the clipboard's text using Tkinter.

    This is the default on systems that are not Windows or OS X. It may
    interfere with other UI toolkits and should be replaced with an
    implementation that uses that toolkit.
    """
    p = subprocess.Popen(['powershell.exe', '-command', 'Get-Clipboard'],
        stdout=subprocess.PIPE)
    bytes_, stderr = p.communicate()
    # Text comes in with old Mac \r line endings. Change them to \n.
    bytes_ = bytes_.replace(b'\r', b'')
    text = py3compat.decode(bytes_)
    return text

[MrMino]

Ideally, ipython could detect wsl2 and include this function.

IIRC detecting WSL requires reading /proc/version. I myself don't feel 100% sure we want to support it, looks a bit like a feature creep to me.

[suewonjp]

I think this issue has nothing to do with WSL.

• Install python-tk package when the python package in use has been installed via Linuxbrew/Homebrew
  • brew install python-tk
  • Make sure versions match with the target python package
    • If you're using python@3.10, then install python-tk@3.10
• Install python3-tk package when the python package in use has been installed via APT
  • sudo apt install python3-tk

I'm using WSL1 Ubuntu, and I could resolve the issue with these WAs.