panel: Panel tries to use unexpectedly Django, while executing in Jupyterlab

ALL software version info

windows 10, pip install

Package Version ----------------------------- ------------ adodbapi 2.6.1.3 affine 2.3.1 aiofiles 0.8.0 aiohttp 3.8.1 aiosignal 1.2.0 aiosqlite 0.17.0 alabaster 0.7.12 alembic 1.7.7 algopy 0.5.7 altair 4.2.0 altair-data-server 0.4.1 altair-transform 0.2.0 altair-widgets 0.2.2 altgraph 0.17.2 amply 0.1.5 aniso8601 9.0.1 ansiwrap 0.8.4 anyio 3.5.0 appdirs 1.4.4 argon2-cffi 21.3.0 argon2-cffi-bindings 21.2.0 arrow 1.2.2 asciitree 0.3.3 asgi-csrf 0.9 asgiref 3.5.0 asn1crypto 1.4.0 asteval 0.9.26 astor 0.8.1 astroid 2.11.3 astroML 1.0.2.post1 astropy 5.0.4 async-generator 1.10 async-timeout 4.0.2 atomicwrites 1.4.0 attrs 21.4.0 autopep8 1.6.0 Babel 2.10.1 backcall 0.2.0 backports-abc 0.5 baresql 0.7.6 base58 2.1.1 bcrypt 3.2.0 beautifulsoup4 4.11.1 binaryornot 0.4.4 black 22.3.0 bleach 5.0.0 blinker 1.4 blis 0.7.7 blosc 1.10.6 bokeh 2.4.2 Bottleneck 1.3.4 bqplot 0.12.33 branca 0.5.0 brewer2mpl 1.4.1 Brotli 1.0.9 cachelib 0.6.0 cachetools 5.0.0 Cartopy 0.20.2 catalogue 2.0.7 certifi 2021.10.8 cffi 1.15.0 cftime 1.6.0 chardet 4.0.0 charset-normalizer 2.0.12 click 8.0.4 click-default-group 1.2.2 click-plugins 1.1.1 cligj 0.7.2 cloudpickle 2.0.0 clr-loader 0.1.7 clrmagic 0.0.1a2 colorama 0.4.4 colorcet 3.0.0 commonmark 0.9.1 cookiecutter 1.7.3 coverage 6.3.2 cramjam 2.5.0 cryptography 3.4.7 csvs-to-sqlite 1.3.1a0 cvxopt 1.3.0 cvxpy 1.2.0 cx-Freeze 6.10 cx-Logging 3.0 cycler 0.11.0 cymem 2.0.6 Cython 0.29.28 cytoolz 0.11.2 dash 2.3.0 dash-core-components 2.0.0 dash-html-components 2.0.0 dash-table 5.0.0 dask 2022.4.2 dask-glm 0.2.0 dask-image 2021.12.0 dask-labextension 5.2.0 dask-ml 2022.1.22 dask-searchcv 0.2.0 databases 0.5.5 datasette 0.61.1 datasette-graphql 2.0.1 datashader 0.14.0 datashape 0.5.2 dateparser 1.1.0 db.py 0.5.4b1 deap 1.3.1 debugpy 1.6.0 decorator 4.4.2 defusedxml 0.7.1 Deprecated 1.2.13 deprecation 2.1.0 diff-match-patch 20200713 dill 0.3.3 distlib 0.3.4 distributed 2022.4.2 Django 4.0.4 docopt 0.6.2 docrepr 0.1.1 docutils 0.17.1 ecos 2.0.10 emcee 3.1.1 entrypoints 0.4 et-xmlfile 1.1.0 fast-histogram 0.10 fastapi 0.75.2 fasteners 0.17.3 fastjsonschema 2.15.3 fastparquet 0.8.0 feather-format 0.4.1 filelock 3.6.0 Fiona 1.8.21 flake8 4.0.1 Flask 2.1.2 flask-accepts 0.18.4 Flask-Compress 1.12 Flask-Mail 0.9.1 flask-restx 0.5.1 Flask-Session 0.4.0 Flask-SQLAlchemy 2.5.1 flaskerize 0.14.0 flit 3.7.1 flit_core 3.7.1 folium 0.12.1 fonttools 4.31.2 formlayout 1.2.1a1 frozenlist 1.3.0 fs 2.4.15 fsspec 2022.3.0 future 0.18.2 fuzzywuzzy 0.18.0 GDAL 3.4.2 geographiclib 1.52 geopandas 0.10.2 geopy 2.2.0 geoviews 1.9.5 gitdb 4.0.9 GitPython 3.1.26 gmpy2 2.1.2 graphene 3.0 graphql-core 3.1.7 graphql-relay 3.1.5 great-expectations 0.14.11 greenlet 1.1.2 guidata 2.1.1 guiqwt 4.1.0 h11 0.12.0 h2 4.1.0 h5py 3.6.0 HeapDict 1.0.1 holoviews 1.14.8 hpack 4.0.0 html5lib 1.1 httpcore 0.14.7 httpie 3.1.0 httptools 0.4.0 httpx 0.22.0 hupper 1.10.3 husl 4.0.3 hvplot 0.7.3 hypercorn 0.13.2 hyperframe 6.0.1 hypothesis 6.45.1 idlex 1.22 idna 3.1 imageio 2.17.0 imageio-ffmpeg 0.4.2 imagesize 1.3.0 imbalanced-learn 0.9.0 importlib-metadata 4.11.3 inflection 0.5.1 iniconfig 1.1.1 intake 0.6.4 intervaltree 3.0.2 ipycanvas 0.11.0 ipykernel 6.13.0 ipyleaflet 0.14.0 ipympl 0.9.1 ipython 7.32.0 ipython-genutils 0.2.0 ipython-sql 0.4.1b1 ipywidgets 7.7.0 isort 5.10.1 itsdangerous 2.1.2 janus 1.0.0 jedi 0.18.1 jellyfish 0.9.0 Jinja2 3.0.3 jinja2-time 0.2.0 joblib 1.1.0 json5 0.9.6 jsonpatch 1.32 jsonpointer 2.3 jsonschema 4.4.0 julia 0.5.7 jupyter 1.0.0 jupyter-bokeh 3.0.4 jupyter-client 7.3.0 jupyter-console 6.4.3 jupyter-core 4.10.0 jupyter-lsp 1.5.1 jupyter-packaging 0.12.0 jupyter-server 1.17.0 jupyter-server-mathjax 0.2.5 jupyter-server-proxy 3.2.1 jupyter-sphinx 0.3.2 jupyterlab 3.3.4 jupyterlab-git 0.34.2 jupyterlab-launcher 0.13.1 jupyterlab-lsp 3.10.1 jupyterlab-pygments 0.2.2 jupyterlab-server 2.13.0 jupyterlab-widgets 1.1.0 keyring 23.5.0 kiwisolver 1.4.2 langcodes 3.3.0 lazy-object-proxy 1.7.1 llvmlite 0.38.0 lmfit 1.0.3 locket 1.0.0 loky 3.1.0 lxml 4.8.0 lz4 4.0.0 Mako 1.2.0 Markdown 3.3.6 MarkupSafe 2.1.1 marshmallow 3.12.1 matplotlib 3.5.1 matplotlib-inline 0.1.3 maturin 0.12.14 mccabe 0.6.1 mercantile 1.2.1 mergedeep 1.3.4 metakernel 0.28.2 mistune 0.8.4 mizani 0.7.4 mkl-service 2.4.0 mlxtend 0.18.0 moviepy 1.0.3 mpl-scatter-density 0.7 mpld3 0.5.7 mpldatacursor 0.7.1 mpmath 1.2.1 msgpack 1.0.3 msvc-runtime 14.29.30133 multidict 6.0.2 multipledispatch 0.6.0 munch 2.5.0 murmurhash 1.0.6 mypy 0.942 mypy-extensions 0.4.3 mysql-connector-python 8.0.21 nbclassic 0.3.7 nbclient 0.5.13 nbconvert 6.5.0 nbconvert_reportlab 0.2 nbdime 3.1.1 nbformat 5.3.0 nbval 0.9.6 nest-asyncio 1.5.5 netCDF4 1.5.8 networkx 2.8 NLopt 2.7.0 nltk 3.7 notebook 6.4.11 notebook-shim 0.1.0 numba 0.55.1 numcodecs 0.9.1 numdifftools 0.9.40 numexpr 2.8.1 numpy 1.21.6 numpydoc 1.2.1 oct2py 5.4.3 octave-kernel 0.34.1 openpyxl 3.0.9 orjson 3.6.7 osqp 0.6.2.post4 outcome 1.1.0 packaging 21.3 palettable 3.3.0 pandas 1.4.2 pandas-datareader 0.10.0 pandocfilters 1.5.0 panel 0.13.0 papermill 2.3.4 param 1.12.1 parambokeh 0.2.3 paramiko 2.8.0 paramnb 2.0.4 parso 0.8.3 partd 1.2.0 pathspec 0.9.0 pathy 0.6.1 patsy 0.5.2 pdfrw 0.4.post2 pdvega 0.2.1.dev0 pefile 2021.9.3 pep8 1.7.1 pexpect 4.8.0 pg8000 1.23.0 pickleshare 0.7.5 Pillow 9.1.0 PIMS 0.5 Pint 0.19.2 pip 22.0.4 pipdeptree 2.2.1 pkginfo 1.8.2 platformdirs 2.5.2 plotly 5.7.0 plotnine 0.8.1.dev0 pluggy 1.0.0 ply 3.11 portpicker 1.5.0 poyo 0.5.0 ppci 0.5.8 preshed 3.0.6 prettytable 3.2.0 priority 2.0.0 proglog 0.1.9 prometheus-client 0.14.1 prompt-toolkit 3.0.29 protobuf 4.0.0rc1 psutil 5.9.0 ptpython 3.0.20 ptyprocess 0.7.0 PuLP 2.3 py 1.11.0 py-lru-cache 0.1.4 pyaml 20.4.0 pyarrow 7.0.0 PyAudio 0.2.11 pybars3 0.9.7 pybind11 2.9.2 pycodestyle 2.8.0 pycosat 0.6.3 pycparser 2.21 pyct 0.4.8 pydantic 1.8.2 pydeck 0.7.1 pydocstyle 6.1.1 pyepsg 0.4.0 pyerfa 2.0.0.1 pyflakes 2.4.0 pyflux 0.4.17 pygad 2.16.3 pygame 2.1.2 pygbm 0.1.0 Pygments 2.11.2 pyhdf 0.10.3 pyinstaller 5.0.1 pyinstaller-hooks-contrib 2022.4 pylint 2.13.7 pyls-spyder 0.4.0 pymc 2.3.8 PyMeta3 0.5.1 pymongo 4.1.1 Pympler 1.0.1 PyNaCl 1.5.0 pynndescent 0.5.6 pyodbc 4.0.32 PyOpenGL 3.1.6 pypandoc 1.5 pyparsing 2.4.7 pyproj 3.3.1 PyQt5 5.15.6 PyQt5-Qt5 5.15.2 PyQt5-sip 12.9.1 pyqtgraph 0.12.4 PyQtWebEngine 5.15.5 PyQtWebEngine-Qt5 5.15.2 pyrsistent 0.18.1 pyserial 3.5 pyshp 2.2.0 PySocks 1.7.1 pystache 0.5.4 pytest 7.1.1 python-baseconv 1.2.2 python-dateutil 2.8.2 python-dotenv 0.19.2 python-hdf4 0.10.0+dummy python-Levenshtein 0.12.2 python-lsp-black 1.2.1 python-lsp-jsonrpc 1.0.0 python-lsp-server 1.4.1 python-multipart 0.0.5 python-picard 0.7 python-slugify 6.1.2 python-snappy 0.6.1 pythonnet 3.0.0a2 PythonQwt 0.10.1 pytz 2022.1 pytz-deprecation-shim 0.1.0.post0 pyviz-comms 2.2.0 PyWavelets 1.3.0 pywin32 303 pywin32-ctypes 0.2.0 pywinpty 2.0.5 pywinusb 0.4.2 PyYAML 6.0 pyzmq 22.3.0 pyzo 4.12.3 pyzstd 0.15.2 QDarkStyle 3.0.3 qdldl 0.1.5.post2 qpsolvers 1.8.0 qstylizer 0.2.1 QtAwesome 1.1.1 qtconsole 5.3.0 QtPy 2.1.0 quadprog 0.1.8 quantecon 0.5.3 quart 0.17.0 rasterio 1.2.10 readme-renderer 35.0 redis 4.2.2 regex 2022.3.15 reportlab 3.6.9 requests 2.27.1 requests-toolbelt 0.9.1 rfc3986 1.5.0 rich 12.3.0 rise 5.7.1 rope 1.0.0 Rtree 1.0.0 ruamel.yaml 0.17.17 Rx 3.1.1 scikit-fuzzy 0.4.1 scikit-image 0.19.2 scikit-learn 1.0.2 scikit-optimize 0.9.0 scilab2py 0.6.2 scipy 1.8.0 scramp 1.4.1 scs 3.2.0 seaborn 0.11.2 Send2Trash 1.8.0 setuptools 62.1.0 shap 0.40.0 Shapely 1.8.1.post1 simpervisor 0.4 simplegeneric 0.8.1 simplejson 3.17.6 simpy 4.0.1 six 1.16.0 sklearn-contrib-lightning 0.6.2.post0 slicer 0.0.7 slicerator 1.1.0 smart-open 5.2.1 smmap 5.0.0 snakeviz 2.1.0 sniffio 1.2.0 snowballstemmer 2.2.0 snuggs 1.4.7 sortedcontainers 2.4.0 sounddevice 0.4.4 soupsieve 2.3.2.post1 spacy 3.2.4 spacy-legacy 3.0.9 spacy-loggers 1.0.2 Sphinx 4.5.0 sphinx-rtd-theme 1.0.0 sphinxcontrib-applehelp 1.0.2 sphinxcontrib-devhelp 1.0.2 sphinxcontrib-htmlhelp 2.0.0 sphinxcontrib-jsmath 1.0.1 sphinxcontrib-qthelp 1.0.3 sphinxcontrib-serializinghtml 1.1.5 spyder 5.3.0 spyder-kernels 2.3.0 SQLAlchemy 1.4.35 sqlite-bro 0.12.2 sqlite-fts4 1.0.1 sqlite-utils 3.26 sqlparse 0.4.2 srsly 2.4.2 starlette 0.17.1 statsmodels 0.13.2 streamlit 1.4.0 streamz 0.6.3 supersmoother 0.4 swifter 1.0.9 sympy 1.10.1 tables 3.7.0 tabulate 0.8.9 tblib 1.7.0 tenacity 8.0.1 termcolor 1.1.0 terminado 0.13.3 text-unidecode 1.3 textdistance 4.2.2 textwrap3 0.9.2 thinc 8.0.15 threadpoolctl 3.1.0 three-merge 0.1.1 tifffile 2022.4.22 tinycss2 1.1.1 toml 0.10.2 tomli 2.0.1 tomli_w 1.0.0 tomlkit 0.10.2 toolz 0.11.2 tornado 6.1 tqdm 4.64.0 traitlets 5.1.1 traittypes 0.2.1 trio 0.20.0 trio-asyncio 0.12.0 twine 4.0.0 twitter 1.19.2 typer 0.4.1 typing_extensions 4.2.0 tzdata 2022.1 tzlocal 4.2 ujson 5.2.0 umap-learn 0.5.1 uncertainties 3.1.6 urllib3 1.26.9 uvicorn 0.17.6 validators 0.18.2 vega 3.6.0 vega-datasets 0.9.0 virtualenv 20.14.1 ViTables 3.0.2 voila 0.3.5 wasabi 0.9.1 wasmer 1.1.0 wasmer_compiler_cranelift 1.1.0 wasmer_compiler_singlepass 1.1.0 watchdog 2.1.7 watchgod 0.8.2 wcwidth 0.2.5 webencodings 0.5.1 websocket-client 1.3.2 websockets 10.3 Werkzeug 2.1.2 wheel 0.37.1 widgetsnbextension 3.6.0 winpython 4.6.20220501 wordcloud 1.8.1 wrapt 1.14.0 wsproto 1.1.0 xarray 2022.3.0 XlsxWriter 3.0.3 xlwings 0.24.7 yapf 0.32.0 yarl 1.7.2 zarr 2.11.3 zict 2.2.0 zipp 3.8.0 zstandard 0.17.0

Description of expected behavior and the observed behavior

Adding Django to my list of packages, suddenly Holoviews/Panel doesn’t behave the same in Jupyterlab: it wants to import (and use ?) use Django.

It shall just use Jupyterlab

Did I do something wrong/uncomplete ?

Complete, minimal, self-contained example code that reproduces the issue

under jupyterlab

# temporary warning removal
import warnings
import matplotlib as mpl
warnings.filterwarnings("ignore", category=mpl.cbook.MatplotlibDeprecationWarning)
# Holoviews
# for more example, see http://holoviews.org/Tutorials/index.html
import numpy as np
import holoviews as hv
hv.extension('bokeh')
dots = np.linspace(-0.45, 0.45, 11)
fractal = hv.Image(image)

layouts = {y: (fractal * hv.Points(fractal.sample([(i,y) for i in dots])) +
               fractal.sample(y=y) )
            for y in np.linspace(0, 0.45,11)}

hv.HoloMap(layouts, kdims=['Y']).collate().cols(2)`

Stack traceback and/or browser JavaScript console output

---------------------------------------------------------------------------
ImportError                               Traceback (most recent call last)
~\AppData\Local\Temp\ipykernel_1348\1168282363.py in <cell line: 8>()
      6 # for more example, see http://holoviews.org/Tutorials/index.html
      7 import numpy as np
----> 8 import holoviews as hv
      9 hv.extension('bokeh')
     10 dots = np.linspace(-0.45, 0.45, 11)

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\holoviews\__init__.py in <module>
     10 
     11 from . import util                                       # noqa (API import)
---> 12 from .annotators import annotate                         # noqa (API import)
     13 from .core import archive, config                        # noqa (API import)
     14 from .core.boundingregion import BoundingBox             # noqa (API import)

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\holoviews\annotators.py in <module>
      8 import param
      9 
---> 10 from panel.pane import PaneBase
     11 from panel.layout import Row, Tabs
     12 from panel.util import param_name

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\__init__.py in <module>
     45 https://panel.holoviz.org/getting_started/index.html
     46 """
---> 47 from . import layout # noqa
     48 from . import links # noqa
     49 from . import pane # noqa

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\layout\__init__.py in <module>
----> 1 from .accordion import Accordion # noqa
      2 from .base import Column, ListLike, ListPanel, Panel, Row, WidgetBox # noqa
      3 from .card import Card # noqa
      4 from .flex import FlexBox # noqa
      5 from .grid import GridBox, GridSpec # noqa

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\layout\accordion.py in <module>
      3 from bokeh.models import Column as BkColumn, CustomJS
      4 
----> 5 from .base import NamedListPanel
      6 from .card import Card
      7 

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\layout\base.py in <module>
     11 from ..io.model import hold
     12 from ..io.state import state
---> 13 from ..reactive import Reactive
     14 from ..util import param_name, param_reprs
     15 

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\reactive.py in <module>
     31 )
     32 from .util import edit_readonly, escape, updating
---> 33 from .viewable import Layoutable, Renderable, Viewable
     34 
     35 log = logging.getLogger('panel.reactive')

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\viewable.py in <module>
     24 
     25 from .config import config, panel_extension
---> 26 from .io import serve
     27 from .io.document import init_doc
     28 from .io.embed import embed_state

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\io\__init__.py in <module>
     23     from .server import serve # noqa
     24     if 'django' in sys.modules:
---> 25         from . import django # noqa

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\panel\io\django.py in <module>
      2 from urllib.parse import urlparse, urljoin
      3 
----> 4 from bokeh.server.django.consumers import DocConsumer, AutoloadJsConsumer
      5 
      6 from ..util import edit_readonly

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\bokeh\server\django\__init__.py in <module>
      3 
      4 # Bokeh imports
----> 5 from .apps import DjangoBokehConfig
      6 from .routing import autoload, directory, document
      7 from .static import static_extensions

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\bokeh\server\django\apps.py in <module>
     27 
     28 # Bokeh imports
---> 29 from .routing import Routing, RoutingConfiguration
     30 
     31 #-----------------------------------------------------------------------------

C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\bokeh\server\django\routing.py in <module>
     25 # External imports
     26 from channels.http import AsgiHandler
---> 27 from django.conf.urls import url
     28 from django.urls.resolvers import URLPattern
     29 

ImportError: cannot import name 'url' from 'django.conf.urls' (C:\WinP\bd310\bublas\WPy64-31040\python-3.10.4.amd64\lib\site-packages\django\conf\urls\__init__.py)

Screenshots or screencasts of the bug in action