<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class="">An afterword on my "tidying up python":<div class=""><br class=""></div><div class="">I still have a couple of errors coming up when starting jupyter from the terminal command line.</div><div class="">Searching the web revealed that one reason could be that I'm using a too much recent httpx version. My idea is to downgrade</div><div class="">to a previous version.</div><div class=""><br class=""></div><span class=""><font face="Courier New" class="">$ port installed | grep httpx<br class=""> httpx_select @0.1_0 (active)<br class=""> py311-httpx @0.28.1_0 (active)<br class=""> py313-httpx @0.28.1_0 (active)</font><br class=""></span><span class=""><br class=""></span><div class=""><span style="font-variant-ligatures: no-common-ligatures" class="">Hoe do I find out, which the previous version is and how do I fall back to this version?</span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><span style="font-variant-ligatures: no-common-ligatures" class=""><br class=""></span></div><div class=""><br class=""></div><span class=""><font face="Courier New" class="">$ jupyter notebook<br class="">[I 2025-07-14 09:07:42.377 ServerApp] jupyter_lsp | extension was successfully linked.<br class="">[I 2025-07-14 09:07:42.385 ServerApp] jupyter_server_terminals | extension was successfully linked.<br class="">[I 2025-07-14 09:07:42.390 ServerApp] jupyterlab | extension was successfully linked.<br class="">[I 2025-07-14 09:07:42.394 ServerApp] notebook | extension was successfully linked.<br class="">[I 2025-07-14 09:07:42.980 ServerApp] notebook_shim | extension was successfully linked.<br class="">[I 2025-07-14 09:07:43.023 ServerApp] notebook_shim | extension was successfully loaded.<br class="">[I 2025-07-14 09:07:43.026 ServerApp] jupyter_lsp | extension was successfully loaded.<br class="">[I 2025-07-14 09:07:43.027 ServerApp] jupyter_server_terminals | extension was successfully loaded.<br class="">[I 2025-07-14 09:07:43.033 LabApp] JupyterLab extension loaded from /opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab<br class="">[I 2025-07-14 09:07:43.033 LabApp] JupyterLab application directory is /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab<br class="">[I 2025-07-14 09:07:43.034 LabApp] Extension Manager is 'pypi'.<br class="">[W 2025-07-14 09:07:43.035 LabApp] Failed to instantiate the extension manager pypi. Falling back to read-only manager.<br class=""> Traceback (most recent call last):<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab/labapp.py", line 837, in initialize_handlers<br class=""> ext_manager = manager_factory(app_options, listings_config, self)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab/extensions/__init__.py", line 46, in get_pypi_manager<br class=""> return PyPIExtensionManager(app_options, ext_options, parent)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab/extensions/pypi.py", line 130, in __init__<br class=""> self._httpx_client = httpx.AsyncClient(proxies=proxies)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> TypeError: AsyncClient.__init__() got an unexpected keyword argument 'proxies'<br class="">[I 2025-07-14 09:07:43.040 ServerApp] jupyterlab | extension was successfully loaded.<br class="">[I 2025-07-14 09:07:43.044 ServerApp] notebook | extension was successfully loaded.<br class="">[I 2025-07-14 09:07:43.046 ServerApp] Serving notebooks from local directory: /Users/kuku/Documents/notebooks<br class="">[I 2025-07-14 09:07:43.046 ServerApp] Jupyter Server 2.13.0 is running at:<br class="">[I 2025-07-14 09:07:43.046 ServerApp] <a href="http://localhost:8888/tree?token=87ba4808ac1bd06a8245a519b0ced81bd37630eb01c2bcfd" class="">http://localhost:8888/tree?token=87ba4808ac1bd06a8245a519b0ced81bd37630eb01c2bcfd</a><br class="">[I 2025-07-14 09:07:43.046 ServerApp] <a href="http://127.0.0.1:8888/tree?token=87ba4808ac1bd06a8245a519b0ced81bd37630eb01c2bcfd" class="">http://127.0.0.1:8888/tree?token=87ba4808ac1bd06a8245a519b0ced81bd37630eb01c2bcfd</a><br class="">[I 2025-07-14 09:07:43.046 ServerApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation).<br class="">[C 2025-07-14 09:07:43.174 ServerApp] <br class=""> <br class=""> To access the server, open this file in a browser:<br class=""> file:///Users/kuku/Library/Jupyter/runtime/jpserver-63092-open.html<br class=""> Or copy and paste one of these URLs:<br class=""> http://localhost:8888/tree?token=87ba4808ac1bd06a8245a519b0ced81bd37630eb01c2bcfd<br class=""> http://127.0.0.1:8888/tree?token=87ba4808ac1bd06a8245a519b0ced81bd37630eb01c2bcfd<br class="">[I 2025-07-14 09:07:43.813 ServerApp] Skipped non-installed server(s): bash-language-server, dockerfile-language-server-nodejs, javascript-typescript-langserver, jedi-language-server, julia-language-server, pyright, python-language-server, python-lsp-server, r-languageserver, sql-language-server, texlab, typescript-language-server, unified-language-server, vscode-css-languageserver-bin, vscode-html-languageserver-bin, vscode-json-languageserver-bin, yaml-language-server<br class="">[W 2025-07-14 09:07:46.117 ServerApp] 404 GET /lab/api/settings/@jupyterlab/apputils-extension:kernels-settings?1752476866107 (127.0.0.1): Schema not found: /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab/schemas/@jupyterlab/apputils-extension/kernels-settings.json<br class="">[W 2025-07-14 09:07:46.117 LabApp] wrote error: 'Schema not found: /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab/schemas/@jupyterlab/apputils-extension/kernels-settings.json'<br class=""> Traceback (most recent call last):<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/tornado/web.py", line 1846, in _execute<br class=""> result = method(*self.path_args, **self.path_kwargs)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/tornado/web.py", line 3375, in wrapper<br class=""> return method(self, *args, **kwargs)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab_server/settings_handler.py", line 57, in get<br class=""> result, warnings = get_settings(<br class=""> ^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab_server/settings_utils.py", line 379, in get_settings<br class=""> schema, version = _get_schema(schemas_dir, schema_name, overrides, labextensions_path)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab_server/settings_utils.py", line 55, in _get_schema<br class=""> raise web.HTTPError(404, notfound_error % path)<br class=""> tornado.web.HTTPError: HTTP 404: Not Found (Schema not found: /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab/schemas/@jupyterlab/apputils-extension/kernels-settings.json)<br class="">[W 2025-07-14 09:07:46.121 LabApp] 404 GET /lab/api/settings/@jupyterlab/apputils-extension:kernels-settings?1752476866107 (d68cda785160450bb8bb6be539c36b35@127.0.0.1) 9.37ms referer=http://localhost:8888/tree<br class="">[W 2025-07-14 09:07:46.498 ServerApp] 404 GET /lab/api/settings/@jupyter-notebook/notebook-extension:full-width-notebook?1752476866348 (127.0.0.1): Schema not found: /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab/schemas/@jupyter-notebook/notebook-extension/full-width-notebook.json<br class="">[W 2025-07-14 09:07:46.499 LabApp] wrote error: 'Schema not found: /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab/schemas/@jupyter-notebook/notebook-extension/full-width-notebook.json'<br class=""> Traceback (most recent call last):<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/tornado/web.py", line 1846, in _execute<br class=""> result = method(*self.path_args, **self.path_kwargs)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/tornado/web.py", line 3375, in wrapper<br class=""> return method(self, *args, **kwargs)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab_server/settings_handler.py", line 57, in get<br class=""> result, warnings = get_settings(<br class=""> ^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab_server/settings_utils.py", line 379, in get_settings<br class=""> schema, version = _get_schema(schemas_dir, schema_name, overrides, labextensions_path)<br class=""> ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^<br class=""> File "/opt/local/Library/Frameworks/Python.framework/Versions/3.11/lib/python3.11/site-packages/jupyterlab_server/settings_utils.py", line 55, in _get_schema<br class=""> raise web.HTTPError(404, notfound_error % path)<br class=""> tornado.web.HTTPError: HTTP 404: Not Found (Schema not found: /opt/local/Library/Frameworks/Python.framework/Versions/3.11/share/jupyter/lab/schemas/@jupyter-notebook/notebook-extension/full-width-notebook.json)<br class=""></font><br class="">--</span><div class=""><span class="">Christoph</span></div><div class=""><span class=""><br class=""><br class=""></span></div><br class=""><br class=""><div class="">
<div>Christoph Kukulies</div><div><a href="mailto:kuku@kukulies.org" class="">kuku@kukulies.org</a></div><div class=""><br class=""></div><br class="Apple-interchange-newline">
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