Cannot build xeus-python-demo #39
Description
Description
I am trying to build the xeus-python-demo locally but I am getting this strange error (extracted from much larger traceback, included below).
conda.auxlib.exceptions.ValidationError: 'emscripten' is not a valid Platform
I tried building it last night with the same result. And, after I hit this error, whenever I ran other commands in conda, e.g. conda create -n myenvname python=3.12, the commands would not run and I would get the same error! (Weird, yeah?)
Because it seemed like my miniconda3 installation was now broken, I completely removed conda (and all of my many environments), and re-installed conda anew from miniforge3 (which I had been meaning to do that anyway).
I just tried cloning the repo again fresh and installing it locally into a fresh conda environment. As before, the kernel did not install after running jupyter lite build. So I executed conda install xeus-python to install the xeus kernel into my conda environment. When I then ran jupyter lite build again, a completely different series of screens flashed by and then I got the same error as shown above (full stack trace below).
Get this! Now, again, my conda installation seems to be broken because I can no longer run conda create -n myenvname python=3.12 without it ending in the same error.
The conda-breaking part of this is probably an upstream issue as well but I could really use some guidance on what is happening here. How can I fix this? Are there any build steps I am missing?
Reproduce
- Install latest miniforge3 on ubuntu
conda create -n jupyterlite python=3.12conda activate jupyterlitegit clone https://github.com/jupyterlite/xeus-python-demo.gitcd xeus-python-democonda install jupyterlite-corejupyter lite build-> Successfully builds Jupyterlite but without kernelsconda install xeus-pythonjupyter lite build
CRASH
(See traceback below)
Expected behavior
Jupyterlite builds with xeus-python kernel and I am enjoying an excellent piece of new technology running in my browser! (Wow)
Context
- JupyterLite version:
0.3.0 - Operating System and version: Pop!_OS 22.04 LTS (Ubuntu 22.04 LTS)
- Browser and version: 6.4.3160.42 (Stable channel) stable (64-bit)
Traceback
(jupyterlite) connorferster@pop-os ~/code/jupyterlite-xeus-python main ± jupyter lite build
static:jupyter-lite.json
. pre_status:static:jupyter-lite.json
tarball: jupyterlite-app-0.3.0.tgz 13MB
output: /home/connorferster/code/jupyterlite-xeus-python/_output
lite dir: /home/connorferster/code/jupyterlite-xeus-python
apps:
sourcemaps: True
unused packages: True
archive:archive
contents:contents
icons:icons
lite:jupyter-lite.json
mimetypes:jupyter-lite.json
serve:contents
settings:overrides
translation:translation
. status:archive:archive
[LiteBuildApp] No archive (yet): jupyterlite-xeus-python-jupyterlite.tgz
. status:contents:contents
contents: 0 files
. status:icons:icons
favicon files: 0 files
. status:lite:jupyter-lite.json
[LiteBuildApp] jupyter-lite.(json|ipynb): 0 files
. status:mimetypes:jupyter-lite.json
filetypes: 26
. status:serve:contents
url: http://127.0.0.1:8000/
server: tornado
headers:
. status:settings:overrides
overrides.json: 0
. status:translation:translation
translation files: 2 files
static:output_dir
-- pre_init:static:output_dir
static:unpack
-- init:static:unpack
federated_extensions:copy:ext:jupyterlab_pygments
federated_extensions:copy:ext:@jupyterlite/xeus
. pre_build:federated_extensions:copy:ext:jupyterlab_pygments
. pre_build:federated_extensions:copy:ext:@jupyterlite/xeus
icons:copy
/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_core/addons/translation.py:88: UserWarning: [lite] [translation] install `jupyterlab_server` to load translations: No module named 'jupyterlab_server'
if not self.is_sys_prefix_ignored() and has_optional_dependency(
translation:copy
. build:icons:copy
-- build:translation:copy
federated_extensions:patch
federated_extensions:settings
Looking for: []
Preparing transaction: done
Verifying transaction: done
Executing transaction: done
To activate this environment, use
$ mamba activate /tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel
To deactivate an active environment, use
$ mamba deactivate
Looking for: ['xeus-python', 'forallpeople', 'ipycanvas']
https://repo.mamba.pm/emscripten-forge/emscripte.. 0.9s
https://repo.mamba.pm/emscripten-forge/noarch (c.. Checked 0.3s
warning libmamba Could not parse mod/etag header
[+] 0.3s
conda-forge/emscripten-wasm32 ━━━━━━━╸━━━━━━━━━━ 0.0 B @ ??.?MB/s 0.3s
conda-forge/emscripten-wasm32 @ ??.?MB/s 404 failed 0.3s
https://repo.mamba.pm/emscripten-forge/emscripte.. @ 74.3kB/s 0.6s
https://repo.mamba.pm/emscripten-forge/noarch 1.9kB @ 2.3kB/s 0.8s
conda-forge/noarch 15.2MB @ 18.3MB/s 0.9s
Transaction
Prefix: /tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel
Updating specs:
- xeus-python
- forallpeople
- ipycanvas
Package Version Build Channel Size
──────────────────────────────────────────────────────────────────────────────────────────────────
Install:
──────────────────────────────────────────────────────────────────────────────────────────────────
- pillow 10.3.0 hf51ec75_0 repo.mamba.pm/emscripten-forge 1MB
- pyjs 2.1.0 py311hd5f3483_7 repo.mamba.pm/emscripten-forge 4MB
- emscripten-abi 3.1.45 h267e887_29 repo.mamba.pm/emscripten-forge 11kB
- python 3.11.3 h_hash_24_cpython repo.mamba.pm/emscripten-forge 13MB
- wheel 0.43.0 pyhd8ed1ab_1 conda-forge Cached
- setuptools 70.1.1 pyhd8ed1ab_0 conda-forge Cached
- pip 24.0 pyhd8ed1ab_0 conda-forge Cached
- six 1.16.0 pyh6c4a22f_0 conda-forge Cached
- parso 0.8.4 pyhd8ed1ab_0 conda-forge Cached
- ptyprocess 0.7.0 pyhd3deb0d_0 conda-forge Cached
- wcwidth 0.2.13 pyhd8ed1ab_0 conda-forge Cached
- pure_eval 0.2.2 pyhd8ed1ab_0 conda-forge Cached
- executing 2.0.1 pyhd8ed1ab_0 conda-forge Cached
- typing_extensions 4.12.2 pyha770c72_0 conda-forge Cached
- traitlets 5.14.3 pyhd8ed1ab_0 conda-forge Cached
- pygments 2.18.0 pyhd8ed1ab_0 conda-forge Cached
- decorator 5.1.1 pyhd8ed1ab_0 conda-forge Cached
- backcall 0.2.0 pyh9f0ad1d_0 conda-forge 14kB
- xeus-python-shell-raw 0.6.3 pyhd8ed1ab_0 conda-forge 12kB
- pickleshare 0.7.5 py_1003 conda-forge Cached
- widgetsnbextension 4.0.11 pyhd8ed1ab_0 conda-forge 1MB
- jupyterlab_widgets 3.0.11 pyhd8ed1ab_0 conda-forge 186kB
- forallpeople 2.6.7 pyhd8ed1ab_0 conda-forge 36kB
- asttokens 2.4.1 pyhd8ed1ab_0 conda-forge Cached
- jedi 0.19.1 pyhd8ed1ab_0 conda-forge Cached
- pexpect 4.9.0 pyhd8ed1ab_0 conda-forge Cached
- prompt-toolkit 3.0.47 pyha770c72_0 conda-forge Cached
- comm 0.2.2 pyhd8ed1ab_0 conda-forge Cached
- matplotlib-inline 0.1.7 pyhd8ed1ab_0 conda-forge Cached
- stack_data 0.6.2 pyhd8ed1ab_0 conda-forge Cached
- numpy 2.0.0 py311hc8e14bb_0 repo.mamba.pm/emscripten-forge 7MB
- ipython 8.25.0 py311hf215df6_1 repo.mamba.pm/emscripten-forge 2MB
- xeus-python-shell 0.6.3 pyhd8ed1ab_0 conda-forge 7kB
- ipywidgets 8.1.3 pyhd8ed1ab_0 conda-forge 114kB
- ipycanvas 0.13.2 pyhd8ed1ab_0 conda-forge 57kB
- xeus-python 0.17.0 py311h8776317_6 repo.mamba.pm/emscripten-forge 4MB
Summary:
Install: 36 packages
Total download: 33MB
──────────────────────────────────────────────────────────────────────────────────────────────────
backcall 13.7kB @ 169.7kB/s 0.1s
widgetsnbextension 1.1MB @ 5.1MB/s 0.1s
emscripten-abi 10.9kB @ 7.2kB/s 1.5s
forallpeople 35.9kB @ 21.5kB/s 0.2s
pyjs 4.0MB @ 1.3MB/s 3.1s
jupyterlab_widgets 186.5kB @ 56.9kB/s 0.1s
ipycanvas 57.1kB @ 17.1kB/s 0.1s
xeus-python-shell 6.7kB @ 2.0kB/s 0.1s
numpy 7.5MB @ 1.9MB/s 3.7s
xeus-python-shell-raw 11.7kB @ 3.0kB/s 0.1s
ipywidgets 113.8kB @ 28.4kB/s 0.1s
pillow 1.1MB @ 242.3kB/s 4.7s
python 13.2MB @ 2.5MB/s 5.3s
ipython 1.6MB @ 292.3kB/s 2.1s
xeus-python 3.8MB @ 319.8kB/s 10.3s
'emscripten' is not a valid Platform
>>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<
Traceback (most recent call last):
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/exception_handler.py", line 17, in __call__
return func(*args, **kwargs)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 959, in exception_converter
raise e
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 952, in exception_converter
exit_code = _wrapped_main(*args, **kwargs)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 898, in _wrapped_main
result = do_call(parsed_args, p)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 763, in do_call
exit_code = install(args, parser, "install")
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/mamba/mamba.py", line 569, in install
handle_txn(conda_transaction, prefix, args, newenv)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/mamba/linking.py", line 38, in handle_txn
unlink_link_transaction.download_and_extract()
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/link.py", line 255, in download_and_extract
self._pfe.execute()
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 771, in execute
self.prepare()
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/common/io.py", line 85, in decorated
return f(*args, **kwds)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 750, in prepare
self.paired_actions.update(
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 751, in <genexpr>
(prec, self.make_actions_for_record(prec)) for prec in largest_first
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 595, in make_actions_for_record
extracted_pcrec = next(
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 596, in <genexpr>
(
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 599, in <genexpr>
PackageCacheData(pkgs_dir).query(pref_or_spec)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 166, in query
for pcrec in self._package_cache_records.values()
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 306, in _package_cache_records
self.load()
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 127, in load
package_cache_record = self._make_single_record(base_name)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/core/package_cache_data.py", line 369, in _make_single_record
package_cache_record = PackageCacheRecord.from_objects(
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/auxlib/entity.py", line 790, in from_objects
return cls(**init_vars)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/auxlib/entity.py", line 743, in __call__
instance = super().__call__(*args, **kwargs)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/models/records.py", line 418, in __init__
super().__init__(*args, **kwargs)
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/auxlib/entity.py", line 759, in __init__
setattr(self, key, kwargs[key])
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/auxlib/entity.py", line 428, in __set__
self.box(instance, instance.__class__, val),
File "/home/connorferster/miniforge3/lib/python3.10/site-packages/conda/auxlib/entity.py", line 570, in box
raise ValidationError(val, msg=e1)
conda.auxlib.exceptions.ValidationError: 'emscripten' is not a valid Platform
$ /home/connorferster/miniforge3/condabin/mamba install --yes --prefix /tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel -c https://repo.mamba.pm/emscripten-forge -c conda-forge xeus-python forallpeople ipycanvas
environment variables:
CIO_TEST=
CONDARC=/tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel/.condarc
CONDA_DEFAULT_ENV=jupyterlite
CONDA_EXE=/home/connorferster/miniforge3/bin/conda
CONDA_PREFIX=/home/connorferster/miniforge3/envs/jupyterlite
CONDA_PREFIX_1=/home/connorferster/miniforge3
CONDA_PROMPT_MODIFIER=(jupyterlite)
CONDA_PYTHON_EXE=/home/connorferster/miniforge3/bin/python
CONDA_ROOT=/home/connorferster/miniforge3
CONDA_SHLVL=2
CURL_CA_BUNDLE=
DEFAULTS_PATH=/usr/share/gconf/pop.default.path
LD_PRELOAD=
MANDATORY_PATH=/usr/share/gconf/pop.mandatory.path
PATH=/home/connorferster/miniforge3/envs/jupyterlite/bin:/home/connorferste
r/miniforge3/condabin:/home/connorferster/.nvm/versions/node/v22.2.0/b
in:/home/connorferster/.local/bin:/usr/local/sbin:/usr/local/bin:/usr/
sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/snap/bin:/usr/lo
cal/go/bin:/home/connorferster/.repobee/bin:/opt/ParaView-
5.11/bin:/usr/local/go/bin
REQUESTS_CA_BUNDLE=
SSL_CERT_FILE=
WINDOWPATH=2
active environment : jupyterlite
active env location : /home/connorferster/miniforge3/envs/jupyterlite
shell level : 2
user config file : /home/connorferster/.condarc
populated config files : /home/connorferster/miniforge3/.condarc
/tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel/.condarc
conda version : 24.3.0
conda-build version : not installed
python version : 3.10.14.final.0
solver : libmamba (default)
virtual packages : __conda=24.3.0=0
base environment : /home/connorferster/miniforge3 (writable)
conda av data dir : /home/connorferster/miniforge3/etc/conda
conda av metadata url : None
channel URLs : https://repo.mamba.pm/emscripten-forge/emscripten-wasm32
https://repo.mamba.pm/emscripten-forge/noarch
https://conda.anaconda.org/conda-forge/emscripten-wasm32
https://conda.anaconda.org/conda-forge/noarch
package cache : /home/connorferster/miniforge3/pkgs
/home/connorferster/.conda/pkgs
envs directories : /home/connorferster/miniforge3/envs
/home/connorferster/.conda/envs
platform : emscripten-wasm32
user-agent : conda/24.3.0 requests/2.31.0 CPython/3.10.14 Linux/6.4.6-76060406-generic pop/22.04 glibc/2.35 solver/libmamba conda-libmamba-solver/24.1.0 libmambapy/1.5.8
UID:GID : 1000:1000
netrc file : /home/connorferster/.netrc
offline mode : False
An unexpected error has occurred. Conda has prepared the above report.
If you suspect this error is being caused by a malfunctioning plugin,
consider using the --no-plugins option to turn off plugins.
Example: conda --no-plugins install
Alternatively, you can set the CONDA_NO_PLUGINS environment variable on
the command line to run the command without plugins enabled.
Example: CONDA_NO_PLUGINS=true conda install
[LiteBuildApp] ERROR | [lite] [post_build] [jupyterlite-xeus] [ERR] Command '['/home/connorferster/miniforge3/condabin/mamba', 'install', '--yes', '--prefix', PosixPath('/tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel'), '-c', 'https://repo.mamba.pm/emscripten-forge', '-c', 'conda-forge', 'xeus-python', 'forallpeople', 'ipycanvas']' returned non-zero exit status 1.
Traceback (most recent call last):
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/doit_cmd.py", line 294, in run
return command.parse_execute(args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/cmd_base.py", line 150, in parse_execute
return self.execute(params, args)
^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/cmd_base.py", line 570, in execute
return self._execute(**exec_params)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/cmd_run.py", line 265, in _execute
return runner.run_all(self.control.task_dispatcher())
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/runner.py", line 254, in run_all
self.run_tasks(task_dispatcher)
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/runner.py", line 213, in run_tasks
node = task_dispatcher.generator.send(node)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/control.py", line 629, in _dispatcher_generator
next_step = node.step()
^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/control.py", line 336, in step
return next(self.generator)
^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/control.py", line 345, in _func
for value in decorated(*args, **kwargs):
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/control.py", line 473, in _add_task
new_tasks = generate_tasks(to_load, task_gen, ref.doc)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/loader.py", line 390, in generate_tasks
for task_dict, x_doc in flat_generator(gen_result, gen_doc):
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/doit/loader.py", line 27, in flat_generator
for item in gen:
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_core/manager.py", line 138, in _delayed_gather
yield from _gather()
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_core/manager.py", line 131, in _gather
raise error
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_core/manager.py", line 123, in _gather
for task in getattr(addon, attr)(self):
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_xeus/add_on.py", line 124, in post_build
self.create_prefix()
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_xeus/add_on.py", line 148, in create_prefix
create_conda_env_from_env_file(root_prefix, yaml_content, env_file.parent)
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_xeus/create_conda_env.py", line 53, in create_conda_env_from_env_file
create_conda_env_from_specs(
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_xeus/create_conda_env.py", line 69, in create_conda_env_from_specs
_create_conda_env_from_specs_impl(
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_xeus/create_conda_env.py", line 126, in _create_conda_env_from_specs_impl
return _create_env_with_config(MAMBA_COMMAND, prefix_path, specs, channels_args)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/site-packages/jupyterlite_xeus/create_conda_env.py", line 144, in _create_env_with_config
subprocess_run(
File "/home/connorferster/miniforge3/envs/jupyterlite/lib/python3.12/subprocess.py", line 571, in run
raise CalledProcessError(retcode, process.args,
subprocess.CalledProcessError: Command '['/home/connorferster/miniforge3/condabin/mamba', 'install', '--yes', '--prefix', PosixPath('/tmp/tmpwsk5p5rz/env/envs/xeus-python-kernel'), '-c', 'https://repo.mamba.pm/emscripten-forge', '-c', 'conda-forge', 'xeus-python', 'forallpeople', 'ipycanvas']' returned non-zero exit status 1.