Running Python (that works independently) inside Dynamo?

Developers
7

You can add pip and external libraries to the Dynamo python interpreter using the script in my post here Openpyxl module

If that is not your preferred method -or- you are using a more recent version of python and associated modules you could run a script that calls another version of python and use argparse library to pass arguments

import subprocess

def runpy(pyexe, script):
    """
    Run different version of python inside Dynamo
    Script is python list or string of script (including path)
    with command line arguments. Beware of spaces in file paths
    """
    if pyexe:
        comm = [pyexe]
        if isinstance(script, str):
            comm += script.split()
        elif isinstance(script, list):
            comm += script
        return subprocess.run(comm, capture_output=True, shell=True)


pyexe = IN[0]
script = IN[1]
result = runpy(pyexe, script)
OUT = result.stdout.decode(), result.stderr.decode()

So IN[0] path to python like this C:/Users/<username>/AppData/Local/Programs/Python/Python311/python.exe

And a basic script example with IN[1] as "C:/temp/test_script.py a b c"

import argparse
import platform

print(platform.python_version())
parser = argparse.ArgumentParser()
parser.add_argument("echo", nargs="*")
args = parser.parse_args()
if args.echo:
    print(args.echo)
else:
    print("No arguments here")

Result
image

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