Launch a WSL process from Python (Windows)

launch_wsl.py

import sys
import windows
import windows.winproxy
import windows.generated_def as gdef

# List distro: wslconfig /l

class WSLAPIProxy(windows.winproxy.ApiProxy):
    APIDLL = "wslapi"
    default_error_check = staticmethod(windows.winproxy.no_error_check)

"""
BOOL WINAPI WslIsDistributionRegistered(
   PCWSTR distroName
);
"""
WslIsDistributionRegisteredPrototype = gdef.WINFUNCTYPE(gdef.BOOL, gdef.LPCWSTR)
WslIsDistributionRegisteredParams = ((1, 'distroName'),)

@WSLAPIProxy('WslIsDistributionRegistered', deffunc_module=sys.modules[__name__])
def WslIsDistributionRegistered(distroName):
    return WslIsDistributionRegistered.ctypes_function(distroName)


"""
HRESULT WINAPI WslLaunch(
  _In_     PCWSTR  distroName,
  _In_opt_ PCWSTR  command,
  _In_     BOOL    useCurrentWorkingDirectory,
  _In_     HANDLE  hStdIn,
  _In_     HANDLE  hStdOut,
  _In_     HANDLE  hStdErr,
  _Out_    HANDLE* phProcess
);
"""

WslLaunchPrototype = gdef.WINFUNCTYPE(gdef.BOOL, gdef.LPCWSTR, gdef.LPCWSTR, gdef.BOOL, gdef.HANDLE, gdef.HANDLE, gdef.HANDLE, gdef.PHANDLE)
WslLaunchParams = ((1, 'distroName'), (1, 'command'), (1, 'useCurrentWorkingDirectory'), (1, 'hStdIn'), (1, 'hStdOut'), (1, 'hStdErr'), (1, 'phProcess'))

@WSLAPIProxy('WslLaunch', deffunc_module=sys.modules[__name__])
def WslLaunch(distroName, command, useCurrentWorkingDirectory, hStdIn, hStdOut, hStdErr, phProcess):
    return WslLaunch.ctypes_function(distroName, command, useCurrentWorkingDirectory, hStdIn, hStdOut, hStdErr, phProcess)

if __name__ == '__main__':
    # Test distro
    print("Legacy distro: {}".format(WslIsDistributionRegistered("Legacy")))
    print("Ubuntu distro: {}".format(WslIsDistributionRegistered("Ubuntu")))
    # Get std handles
    stdin_handle = windows.winproxy.GetStdHandle(gdef.STD_INPUT_HANDLE)
    stdout_handle = windows.winproxy.GetStdHandle(gdef.STD_OUTPUT_HANDLE)
    stderr_handle = windows.winproxy.GetStdHandle(gdef.STD_ERROR_HANDLE)
    # Launch proc
    proc_handle = gdef.HANDLE()
    WslLaunch("Legacy", "/usr/bin/python -c \"print(raw_input('Hello from Linux Python :)'))\"", True, stdin_handle, stdout_handle, stderr_handle, proc_handle)
    proc = windows.winobject.process.WinProcess._from_handle(proc_handle.value)
    print(proc)
    proc.wait()