chapter08: improvements for the transcript_enrich*.py scripts

[bmerkle]

Describe the bug
before tackling #591 I would like to fix a few bugs in the transcript_enrich*.py scripts.
This is a issue for all the 5 scripts which are present and have some minor defects.
Once this is fixed and they run clean, I would propose that the update to openai 1.x port in #591 happens

transcript_enrich_speaker.py

• use consistent naming for environment variables and code variables .e.g RESOURCE_ENDPOINT --> AZURE_OPENAI_ENDPOINT
• fix json serialization error in
  -- arguments = json.loads(result.get("function_call").get("arguments"))
  

  generative-ai-for-beginners/08-building-search-applications/scripts/transcript_enrich_speaker.py

  Line 138 in fe0fdb9

  arguments = json.loads(result.get("function_call").get("arguments"))

  
  -- speakers = arguments.get("speakers", "")
  

  generative-ai-for-beginners/08-building-search-applications/scripts/transcript_enrich_speaker.py

  Line 201 in fe0fdb9

  speakers = arguments.get("speakers", "")

transcript_enrich_bucket.py

transcript_enrich_summaries.py

transcript_enrich_embeddings.py

transcript_enrich_lite.py

To Reproduce

Steps to reproduce the behavior:

transcript_enrich_speaker.py

python transcript_enrich_speaker.py -f %TRANSCRIPT_FOLDER%

(venv) C:\work\microsoft\generative-ai-for-beginners\08-building-search-applications\scripts>python transcript_enrich_speaker.py -f %TRANSCRIPT_FOLDER%
Exception in thread Thread-2 (process_queue):
Traceback (most recent call last):
File "C:\work\microsoft\generative-ai-for-beginners\venv\Lib\site-packages\tenacity_init_.py", line 478, in call
result = fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^
File "C:\work\microsoft\generative-ai-for-beginners\08-building-search-applications\scripts\transcript_enrich_speaker.py", line 138, in get_speaker_info
arguments = json.loads(result.get("function_call").get("arguments"))
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\json_init_.py", line 346, in loads
return _default_decoder.decode(s)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\json\decoder.py", line 337, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\Program Files\Python311\Lib\json\decoder.py", line 355, in raw_decode
raise JSONDecodeError("Expecting value", s, err.value) from None
json.decoder.JSONDecodeError: Expecting value: line 1 column 1 (char 0)

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
File "C:\Program Files\Python311\Lib\threading.py", line 1045, in bootstrap_inner
self.run()
File "C:\Program Files\Python311\Lib\threading.py", line 982, in run
self.target(*self.args, **self.kwargs)
File "C:\work\microsoft\generative-ai-for-beginners\08-building-search-applications\scripts\transcript_enrich_speaker.py", line 200, in process_queue
function_name, arguments = get_speaker_info(base_text)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\work\microsoft\generative-ai-for-beginners\venv\Lib\site-packages\tenacity_init.py", line 336, in wrapped_f
return copy(f, *args, **kw)
^^^^^^^^^^^^^^^^^^^^
File "C:\work\microsoft\generative-ai-for-beginners\venv\Lib\site-packages\tenacity_init.py", line 475, in call
do = self.iter(retry_state=retry_state)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "C:\work\microsoft\generative-ai-for-beginners\venv\Lib\site-packages\tenacity_init.py", line 376, in iter
result = action(retry_state)
^^^^^^^^^^^^^^^^^^^
File "C:\work\microsoft\generative-ai-for-beginners\venv\Lib\site-packages\tenacity_init.py", line 419, in exc_check
raise retry_exc from fut.exception()
tenacity.RetryError: RetryError[<Future at 0x126c59b2dd0 state=finished raised JSONDecodeError>]
Exception in thread Thread-4 (process_queue):
Traceback (most recent call last):
File "C:\work\microsoft\generative-ai-for-beginners\venv\Lib\site-packages\tenacity_init_.py", line 478, in call
result = fn(*args, **kwargs)
^^^^^^^^^^^^^^^^^^^

the PR will fix these errors.

transcript_enrich_bucket.py

transcript_enrich_summaries.py

transcript_enrich_embeddings.py

transcript_enrich_lite.py

Expected behavior
A clear and concise description of what you expected to happen.

[github-actions]

👋 Thanks for contributing @bmerkle! We will review the issue and get back to you soon.