Pyscript - task.executor of module

Configuration
1

I have the following script called edit_myhouse_theme.py in the config/pyscripts folder:

import fileinput
import sys
import os
import time

@service
def changefilepyscript():

  if '/config/pyscript_modules' not in sys.path:
    sys.path.append('/config/pyscript_modules')

  path = '/config/themes/myhouse-mode/myhouse-mode.yaml'

  time.sleep(10)

  
  file_name = state.get('input_text.background_full_filename')
  
  task.executor(theme_module.changetheme, file_name)

The script was to replace the name of the lovelace_theme value in the theme file. As this involves open commands, there is a script in config/pyscript_modules called theme_module.py that i call using task.executor. This carries out the file changes. The code is below:

import fileinput
import sys
import os


def changetheme(file_selected=None):
    
    if len(file_selected) > 8:
      path = '/config/themes/myhouse-mode/myhouse-mode.yaml'

      with open(path) as file:
        data = file.readlines()

      data[13] = f'  lovelace-background: "center / cover no-repeat url(\'local/images/backgrounds/{file_selected}\')"\n'

      with open(path, 'w') as file:
        file.writelines(data)

I have run the created pyscript service changefilepyscript and get the following error:

This error originated from a custom integration.

Logger: custom_components.pyscript.file.edit_myhouse_theme.changefilepyscript
Source: custom_components/pyscript/eval.py:510
integration: Pyscript Python scripting (documentation, issues)
First occurred: 13:45:10 (1 occurrences)
Last logged: 13:45:10

Exception in <file.edit_myhouse_theme.changefilepyscript> line 18: task.executor(theme_module.changetheme, file_name) ^ NameError: name 'theme_module.changetheme' is not defined

I am not sure what i have failed to do as i think i have set the module path up correctly in the calling pyscript but may be wrong. Any help appreciated

UPDATE:

I have moved on a bit by using @pyscript_compile rather than a 2nd native python script.

import fileinput
import sys
import os
import time

@service
def changefilepyscript():

#  if 'config/pyscript_modules' not in sys.path:
#    sys.path.append('config/pyscript_modules')
  
#  path = 'config/themes/myhouse-mode/myhouse-mode.yaml'

#  time.sleep(10)
  
  file_name = state.get('input_text.background_full_filename')
  
  contents, exception = task.executor(changetheme, file_name)
  if exception:
      raise exception
  log.info(f"contents = {contents}")
  
@pyscript_compile
def changetheme(file_selected=None):
    
#    if len(file_selected) > 8:
   path = '/homeassistant/themes/myhouse-mode/myhouse-mode.yaml'

   with open(path) as file:
       
     data = file.readlines()

     data[13] = f'  lovelace-background: "center / cover no-repeat url(\'local/images/backgrounds/{file_selected}\')"\n'

     with open(path, 'w') as filew:
       
       filew.writelines(data)

However, the path name for the yaml file is not finding the file even though i have used ssh to confirm and tried various variations on the name (config, homeassistant etc).

The current definition is

   path = '/homeassistant/themes/myhouse-mode/myhouse-mode.yaml'

Readlink using the full python text above returns the same correct path so the format is at least correct.

I am at a total loss with this.

2

This path worked

path = '/config/themes/myhouse'

Full code for function is

def changetheme(file_selected):
  path = '/config/themes/myhouse'
  yamlfile = 'myhouse.yaml'
  with chdir(path):
    with open(yamlfile) as file:
      data = file.readlines()
      data[13] = f'  lovelace-background: "center / cover no-repeat url(\'local/images/backgrounds/{ file_selected }\')"\n'