Late to the party, I'm facing the same task right now...
I intend to use accoreconsole to run some command of my own add-in.
The commands require a json file path as the only argument (there's a bunch of settings inside it, including the list of drawings to process since they are batch operations).
This is the code snippet I use to create the scr and json file in a temporary directory, hopefully the variables are self explanatory:
with TemporaryDirectory() as wd:
# dump the settings in a json file
json_fd, json_path = mkstemp(suffix=".json", dir=wd)
# create .scr that loads the dll and runs the command
scr_fd, scr_path = mkstemp(suffix=".scr", dir=wd, text=True)
try:
with os.fdopen(json_fd, "w") as json_fo:
json_fo.write(settings.json())
with os.fdopen(scr_fd, "w", newline="\r\n") as scr:
scr.write(
f"SECURELOAD 0\nNETLOAD\n{plugin_path}\n"
f"SECURELOAD 1\n{cmd_name}\n"
f"{json_path}\n\n"
)
await run_acad_script(scr_path)
except Exception as ex:
log.error(f"Something went wrong: {ex}")
finally:
# file cleanup
if os.path.exists(json_path):
os.remove(json_path)
if os.path.exists(scr_path):
os.remove(scr_path)
"settings" is a Pydantic model, very handy for validation of the information needed, and with the convenience method "json()" to convert the class object to a JSON string.
As you can see, I write the entire script in a single line, but it can be split into multiple "write" calls (you still have to add the newline character).
"run_acad_script" will be the function that calls subprocess with the right arguments:
process = subprocess.Popen(acad_path, "/i", dwg, "/product", "ACAD", "/s", script_path)
process.wait()
(for me dwg is an empty dwg file, since the real drawings paths are in the JSON file, but I need to specify it)
Right now I'm trying to use the async version of subprocess in order to avoid blocking the app while autocad is running and to forward the accoreconsole messages to my app; sadly my current code is not working, as autocad crashes as soon as it is started.
