Component containerizer is not creating # Fetch Laz Files.sp cell

[skoulouzis]

Describe the bug Component containerizer is not showing the component on the left panel. The log shows:

HTTPServerRequest(protocol='https', host='', method='POST', uri='/n-a-a-vre/user//vre/extractor?1641287046158', version='HTTP/1.1', remote_ip='10.32.0.1')
Traceback (most recent call last):
  File "/opt/conda/lib/python3.9/site-packages/tornado/web.py", line 1704, in _execute
    result = await result
  File "/opt/conda/lib/python3.9/site-packages/jupyterlab_vre/handlers.py", line 75, in post
    params = list(extractor.extract_cell_params(cell.original_source))
  File "/opt/conda/lib/python3.9/site-packages/jupyterlab_vre/extractor/extractor.py", line 118, in extract_cell_params
    cell_unds = self.__extract_cell_undefined(cell_source)
  File "/opt/conda/lib/python3.9/site-packages/jupyterlab_vre/extractor/extractor.py", line 104, in __extract_cell_undefined
    raise RuntimeError("Flakes reported the following error:"
RuntimeError: Flakes reported the following error:
    temp:5:11: invalid syntax
    laz_files = [f for f in list_remote(get_wdclient(conf_wd_opts), conf_remote_path_ahn.as_posix())    
              ^

[W 2022-01-04 09:04:06.617 SingleUserNotebookApp handlers:617] Unhandled error [E 2022-01-04 09:04:06.618 SingleUserNotebookApp log:181] { "Cookie": "jupyterhub-user-skoulouzis=[secret]; _xsrf=[secret]; jupyterhub-session-id=[secret]", "Cache-Control": "no-cache", "Pragma": "no-cache", "Sec-Gpc": "1", "Sec-Fetch-Site": "same-origin", "Sec-Fetch-Mode": "cors", "Sec-Fetch-Dest": "empty", "Dnt": "1", "Origin": "https://lifewatch.lab.uvalight.net:32443", "X-Xsrftoken": "2|93fbc237|7bc841d4ef2a39d1de9bdf12b7528d4d|1640346236", "Authorization": "token [secret]", "Content-Type": "text/plain;charset=UTF-8", "Referer": "https://lifewatch.lab.uvalight.net:32443/n-a-a-vre/user/skoulouzis/lab?", "Accept-Encoding": "gzip, deflate, br", "Accept-Language": "en-US,en;q=0.5", "Accept": "/", "User-Agent": "Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:95.0) Gecko/20100101 Firefox/95.0", "Content-Length": "14484", "X-Scheme": "https", "X-Forwarded-Port": "443,32443", "X-Forwarded-Host": "lifewatch.lab.uvalight.net:32443", "X-Forwarded-Proto": "https,http", "X-Forwarded-For": "10.32.0.1,::ffff:10.36.0.7", "X-Real-Ip": "10.32.0.1", "X-Request-Id": "f7cb00537c96a2bbd6f09575b1b38033", "Host": "lifewatch.lab.uvalight.net:32443", "Connection": "close" }

To Reproduce Steps to reproduce the behavior:

1. Open the Demo_Notebook
2. Click on # Fetch Laz Files.sp cell

Expected behavior Show the cell in the panel and be able to add it to the catalog

Screenshots

Additional context Add any other context about the problem here.

[skoulouzis]

Container in jupuyterhub runs pyflakes==2.4.0

jovyan@jupyter-user:~$ pip freeze | grep pyflakes
pyflakes==2.4.0

[skoulouzis]

Not able to reproduce. Not seen for some time.