The leo/plugins folder no longer contains pyzo's sources!

[Edward K. Ream]

As of rev 835218 in devel, the pyzo_in_leo plugin works by using pyzo's actual sources.

To make this work you must do the following:

1. Install pyzo.

2. Put pyzo on your path, such that typing `pyzo` in a console starts pyzo.

I recently discovered the marvelous find_executable function in python's distutils.spawn module.  This function has changed how I think about inter-process communication.

Edward

P.S. Here are some examples showing how to use find_executable...

Here is how Leo communicates with asciidoctor and asciidoc3:

asciidoctor_exec = find_executable('asciidoctor')
asciidoc3_exec = find_executable('asciidoc3')
...
def run_asciidoctor(self, i_path, o_path):
    global asciidoctor_exec, asciidoc3_exec
    # Call the external program to write the output file.
    prog = 'asciidoctor' if asciidoctor_exec else 'asciidoc3'
    command = f"{prog} {i_path} -o {o_path} -b html5"
    g.execute_shell_commands(command)

And here is how the top-level init function in the pyzo_in_leo plugin discovers how to import pyzo:

global pyzo
# Fail if can't find pyzo.exe.
pyzo_exec = find_executable('pyzo')
if not pyzo_exec:
    return oops('can not find pyzo.exe')
# Add pyzo/source to sys.path
pyzo_dir = os.path.dirname(pyzo_exec)
pyzo_source_dir = os.path.join(pyzo_dir, 'source')
if pyzo_source_dir not in sys.path:
    sys.path.insert(0, pyzo_source_dir)
# Fail if still can't import pyzo.
try:
    import pyzo as local_pyzo
    pyzo = local_pyzo
except ImportError:
    return oops(f"can not import pyzo from {pyzo_source_dir!r}")

EKR

[Matt Wilkie]

I recently discovered the marvelous find_executable function in python's distutils.spawn module.  This function has changed how I think about inter-process communication.

Thank you!!

[Edward K. Ream]

On Tue, Oct 8, 2019 at 2:17 PM Matt Wilkie <map...@gmail.com> wrote:

I recently discovered the marvelous find_executable function in python's distutils.spawn module.  This function has changed how I think about inter-process communication.

Thank you!!

You're welcome. I'm glad there is no need for the code bloat.  I'll have more to say on IPC in another thread, maybe tomorrow.

Edward

[Matt Wilkie]

I recently discovered the marvelous find_executable function in python's distutils.spawn module.  This function has changed how I think about inter-process communication.

Thank you!!

This prompted some research on how to use the function, which turned up this alternate more concise approach that works for me here:

from shutil import which
which('notepad')

[Edward K. Ream]

On Tue, Oct 8, 2019 at 2:27 PM Matt Wilkie <map...@gmail.com> wrote:

> This prompted some research on how to use the function, which turned up this alternate more concise approach that works for me here:

from shutil import which
which('notepad')

Thanks. Any day without distutils is a good day :-)

Edward