python tests using robot framework - python-3.x

Question

Does anyone have a good example of testing a python program using Robot Framework.
I am trying to run my python program (chaptermarkers.py) with an argument of --test and checking the results.
Passing the argument has been an odyssey of google searches for 2 days.
[file: common_resourses.robot]
*** Settings ***
Library OperatingSystem
*** Variables ***
${CHAPTERMARKERS_EXEC} chaptermarkers
${LOG LEVEL} DEBUG
*** Keywords ***
# TODO
[Test Cases: file: default_suite.robot]
*** Settings ***
Documentation *Test Chapter Markers runs but has error in filename*
Metadata Github https://github.com/cbitterfield/chaptermarkers
Metadata Version 1.0.0
Metadata Executed At ${HOST}
# External libraries imports
Library Process
Library String
Resource common_resources.robot
*** Variables ***
${EXPECTED_MESSAGE} Movie Filename
${REPORT FILE} report.html
${LOG FILE} logfile.html
${LOG LEVEL} DEBUG
${OUTPUT DIR} /Users/colin/IdeaProjects/chaptermarkers
${test} --test
*** Test Cases ***
Scenerio test chaptermarkers run
[Tags] DEBUG
[Documentation] Verifies that chaptermarkers is executed well and without errors
${result}= Run process ${CHAPTERMARKERS_EXEC} ${test}
Should Contain ${result.stdout} ${EXPECTED_MESSAGE}
Should Be Empty ${result.stderr}
No matter how I try to put something after the program, I get an error of directory missing.
[Crazy unusable error messages]
$ robot --loglevel DEBUG --log log.html --report report.html stests/default_suite.robot
[ ERROR ] Error in file '/Users/colin/IdeaProjects/chaptermarkers/stests/default_suite.robot' on line 25: Invalid variable name '${test} --test'.
==============================================================================
Default Suite :: *Test Chapter Markers runs but has error in filename*
==============================================================================
Scenerio test chaptermarkers run :: Verifies that chaptermarkers i... | FAIL |
Variable '${test}' not found. Did you mean:
${TEST_TAGS}
${TEST_NAME}
------------------------------------------------------------------------------
Default Suite :: *Test Chapter Markers runs but has error in filen... | PASS |
0 critical tests, 0 passed, 0 failed
1 test total, 0 passed, 1 failed
==============================================================================
Output: /Users/colin/IdeaProjects/chaptermarkers/output.xml
[ ERROR ] Unexpected error: FileNotFoundError: [Errno 2] No such file or directory: '/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/htmldata/rebot/log.html'
Traceback (most recent call last):
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/utils/application.py", line 83, in _execute
rc = self.main(arguments, **options)
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/run.py", line 451, in main
writer.write_results(settings.get_rebot_settings())
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/reporting/resultwriter.py", line 65, in write_results
self._write_log(results.js_result, settings.log, config)
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/reporting/resultwriter.py", line 79, in _write_log
self._write('Log', LogWriter(js_result).write, path, config)
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/reporting/resultwriter.py", line 86, in _write
writer(path, *args)
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/reporting/logreportwriters.py", line 43, in write
self._write_file(path, config, LOG)
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/reporting/logreportwriters.py", line 36, in _write_file
writer.write(template)
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/htmldata/htmlfilewriter.py", line 33, in write
for line in HtmlTemplate(template):
File "/Users/colin/IdeaProjects/chaptermarkers/env/lib/python3.8/site-packages/robot/htmldata/normaltemplate.py", line 28, in __iter__
with codecs.open(self._path, encoding='UTF-8') as file:
File "/opt/local/Library/Frameworks/Python.framework/Versions/3.8/lib/python3.8/codecs.py", line 905, in open
file = builtins.open(filename, mode, buffering)
(env) razzamataz:chaptermarkers colin$

Answer 1

A few things I noticed:
There needs to be at least two spaces between ${test} and --test in your variables section. You provided only one. The same in the Run Process line, there should be at least two spaces between exec and argument. The rule is that RF uses two spaces as delimiter.
Your test name is indented. RF inteprets it as a keyword calling which is unexpected. It should start from the begining of the line without indent
The file missing error looks weired and I don't know the reason. The file is part of RF library and if you installed RF correctly, it should be there. I suggest that you start a new virtual environment and try again if it's not too complex.
P.S. Just FYI, all RF buil-in libraries can be found here:
https://robotframework.org/#libraries.