Small problem running xpra from mingw prompt with paramiko

[Nathan Hallquist]

When running XPRA from the MinGW prompt, which on windows is my development environment Paramiko fails on "_dailog" operations.

There seem to be two problems:

• When None is passed into popen the underlying python chokes. To fix this I add an 'or ""'

• Popen doesn't work on the xpra script text file, rather, only on the xpra.exe command. Windows doesn't seem to be fond of the '#!'. To fix this I have changed get_xpra_command to explicitly include the "python" invocation if the result doesn't end in ".exe".

With these changes things work for me. That said, I am not certain this is the right thing to do. I'll be verifying that this doesn't break Linux later today.

Antoine, can you look what I am proposing?

[Antoine Martin]

What about the other changes in that patch (ignoring the whitespace ones): is the or "" needed?
We don't want to pollute default_do_get_xpra_command with win32 concerns, it should be possible to modify path.py in the platforms/win32 module instead.

[Nathan Hallquist]

The white spaces were a mistake. The or "" is needed because it resolves the following error:

Traceback (most recent call last):
  File "C:/msys64/home/nathan/src/build/lib.mingw-2.7/xpra/net/ssh.py", line 83, in exec_dialog_subprocess
    proc = Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE, **kwargs)
  File "C:/msys64/mingw64/lib/python2.7/subprocess.py", line 326, in __init__
    errread, errwrite)
  File "C:/msys64/mingw64/lib/python2.7/subprocess.py", line 532, in _execute_child
    args = list2cmdline(args)
  File "C:/msys64/mingw64/lib/python2.7/list2cmdline.py", line 51, in list2cmdline
    needquote = (" " in arg) or ("\t" in arg) or not arg
TypeError: argument of type 'NoneType' is not iterable

Replying to Antoine Martin:

What about the other changes in that patch (ignoring the whitespace ones): is the or "" needed?
We don't want to pollute default_do_get_xpra_command with win32 concerns, it should be possible to modify path.py in the platforms/win32 module instead.

[Nathan Hallquist]

Here's the current version of the patch. Seems to work, I've built and installer package that also worked. May I commit this?

[Antoine Martin]

May I commit this?

Sure, looks good.

I'm not sure why the icon is not found (can you run Path_info.exe?) - but not going to worry about this for now, the patch fixes a real bug.

[Nathan Hallquist]

I believe I've fixed it in r21479. Forgot to put the ticket number in my svn log. Sorry about that, I'm not sure how to fix that, but I'll be careful going forward.

[migration script]

this ticket has been moved to: ​https://github.com/Xpra-org/xpra/issues/2114