Hi all - I'm attempting to build a

pex

that will run a python cli tool (

dagster

) against my module. Specifically

dagster api grpc --module-name "my.module"

, where

my.module

is part of my repository.

python_sources(
  name="mymod",
)
 
pex_binary(
  name="mymod_usercode",
  entry_point = './main.py:main',
)

I have an entrypoint function in

main.py

import ...

def main():
    subprocess.run(
        args = [
            "dagster",
            "api",
            "grpc",
            "-h",
            "0.0.0.0",
            "-p",
            "4000",
            "--module-name",
            "my.module.main",
        ]
    )

I can build a pex that can resolve all of the third-party dependencies, but none of the first party dependencies can be resolved:

No module named 'my' while importing module 'my.module.main'

. Dropping into an interpreter with

PEX_INTERPRETER=1

lets me import the module just fine. Any advice on how I can do this (or if I even should be trying to do this)? Many thanks in advance!

This may be a case where you want execution mode = venv https://pantsbuild.slack.com/archives/C046T6T9U/p1645800620339959?thread_ts=1645799187.917059&cid=C046T6T9U

Thanks for this! I'd tried it briefly, but dug back in and it seems to be working.