when launching tastymap ui: AttributeError: module 'panel.widgets' has no attribute 'ColorMap'

[JulianGiles]

ALL software version info

# Name                    Version                   Build  Channel
panel                     1.2.3              pyhd8ed1ab_0    conda-forge
tastymap                  0.3.0                    pypi_0    pypi
bokeh                     3.2.2              pyhd8ed1ab_0    conda-forge
python                    3.11.5          hab00c5b_0_cpython    conda-forge
jupyter                   1.0.0           py311h38be061_8    conda-forge
notebook                  7.0.4              pyhd8ed1ab_0    conda-forge

Description of expected behavior and the observed behavior

When running tastymap ui in the terminal I get:

Traceback (most recent call last):
  File "/user/jgiles/mambaforge/envs/wradlib4/bin/tastymap", line 8, in <module>
    sys.exit(main())
             ^^^^^^
  File "/user/jgiles/mambaforge/envs/wradlib4/lib/python3.11/site-packages/tastymap/cli.py", line 12, in main
    TastyKitchen().serve(port=8888, show=True)
    ^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/wradlib4/lib/python3.11/site-packages/tastymap/ui.py", line 147, in __init__
    self.cmap_input = pn.widgets.ColorMap(
                      ^^^^^^^^^^^^^^^^^^^
AttributeError: module 'panel.widgets' has no attribute 'ColorMap'

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

# in a terminal
tastymap ui

[ahuang11]

Thanks! Panel released ColorMap widget in v1.3.0 so if you upgrade Panel it'll work. On my end, I need to pin panel>=1.3.0.

[JulianGiles]

ah, gotcha. I have installed again in a new env, however now I get another error :(

Launching server at http://localhost:8888
Uncaught exception GET / (127.0.0.1)
HTTPServerRequest(protocol='http', host='localhost:8888', method='GET', uri='/', version='HTTP/1.1', remote_ip='127.0.0.1')
Traceback (most recent call last):
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/plot.py", line 341, in _data
    obj.set_dpi(self.dpi)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/matplotlib/figure.py", line 3088, in set_dpi
    self.dpi = val
    ^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/matplotlib/figure.py", line 2776, in _set_dpi
    self.set_size_inches(w, h, forward=forward)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/matplotlib/figure.py", line 3044, in set_size_inches
    manager.resize(*(size * self.dpi).astype(int))
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/matplotlib/backends/_backend_tk.py", line 546, in resize
    self.canvas._tkcanvas.configure(width=width, height=height)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/tkinter/__init__.py", line 1702, in configure
    return self._configure('configure', cnf, kw)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/tkinter/__init__.py", line 1692, in _configure
    self.tk.call(_flatten((self._w, cmd)) + self._options(cnf))
_tkinter.TclError: invalid command name ".!canvas"

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

Traceback (most recent call last):
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/tornado/web.py", line 1786, in _execute
    result = await result
             ^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/io/server.py", line 586, in get
    session = await self.get_session()
              ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/io/server.py", line 475, in get_session
    session = await super().get_session()
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/bokeh/server/views/session_handler.py", line 145, in get_session
    session = await self.application_context.create_session_if_needed(session_id, self.request, token)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/bokeh/server/contexts.py", line 240, in create_session_if_needed
    self._application.initialize_document(doc)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/io/server.py", line 411, in initialize_document
    super().initialize_document(doc)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/bokeh/application/application.py", line 190, in initialize_document
    h.modify_document(doc)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/bokeh/application/handlers/function.py", line 140, in modify_document
    self._func(doc)
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/io/server.py", line 152, in _eval_panel
    doc = panel._modify_doc(server_id, title, doc, location)
          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/viewable.py", line 316, in _modify_doc
    return self.server_doc(doc, title, location) # type: ignore
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/template/base.py", line 480, in server_doc
    return self._init_doc(doc, title=title, location=location)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/template/base.py", line 731, in _init_doc
    document = super()._init_doc(doc, comm, title, notebook, location)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/template/base.py", line 217, in _init_doc
    model = obj.get_root(document, comm, preprocess=False)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/layout/base.py", line 309, in get_root
    root = super().get_root(doc, comm, preprocess)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/viewable.py", line 670, in get_root
    root = self._get_model(doc, comm=comm)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/layout/base.py", line 177, in _get_model
    objects, _ = self._get_objects(model, [], doc, root, comm)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/layout/tabs.py", line 211, in _get_objects
    rendered[pref] = child = pane._get_model(doc, root, model, comm)
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/layout/base.py", line 177, in _get_model
    objects, _ = self._get_objects(model, [], doc, root, comm)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/layout/base.py", line 159, in _get_objects
    child = pane._get_model(doc, root, model, comm)
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/plot.py", line 311, in _get_model
    return self._img_type._get_model(self, doc, root, parent, comm)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/base.py", line 496, in _get_model
    model = self._bokeh_model(**self._get_properties(doc))
                                ^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/reactive.py", line 581, in _get_properties
    properties = self._process_param_change(params)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/base.py", line 519, in _process_param_change
    params.update(self._transform_object(params.pop('object')))
                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/plot.py", line 293, in _transform_object
    return self._img_type._transform_object(self, obj)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/image.py", line 196, in _transform_object
    data = self._data(obj)
           ^^^^^^^^^^^^^^^
  File "/user/jgiles/mambaforge/envs/tastymapui/lib/python3.12/site-packages/panel/pane/plot.py", line 343, in _data
    raise Exception("The Matplotlib backend is not configured. Try adding `matplotlib.use('agg')`") from ex
Exception: The Matplotlib backend is not configured. Try adding `matplotlib.use('agg')`

[JulianGiles]

Maybe the issue is related to installation with mamba/conda and pip. It would be nice to have tastymap in conda so it is possible to install everything with mamba/conda :)

[ahuang11]

Can you share the version of panel and matplotlib? I'll try to reproduce.

Yes, eventually I should get it released on conda. Feel free to help me do that too :D

[ahuang11]

In the meantime, you can try the UI here: https://huggingface.co/spaces/ahuang11/tastykitchen

[JulianGiles]

I'm on

matplotlib                3.8.2                    pypi_0    pypi
panel                     1.3.4              pyhd8ed1ab_0    conda-forge

I'll try it on that link, thanks so much!