panel examples ValueError could not find examples

[cdeil]

I tried to follow the instructions at https://panel.holoviz.org/getting_started/installation.html

Error:

% panel examples --path ./

Traceback (most recent call last):
  File "/Users/cdeil/opt/anaconda3/envs/app/bin/panel", line 11, in <module>
    sys.exit(main())
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/panel/command/__init__.py", line 112, in main
    pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 455, in substitute_main
    args.func(args) if hasattr(args,'func') else parser.error("must supply command to run")
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 394, in <lambda>
    parser.set_defaults(func=lambda args: fn(name, **{k: getattr(args,k) for k in vars(args) if k!='func'} ))
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 38, in examples
    copy_examples(name, path, verbose, force)
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 44, in copy_examples
    source = _find_examples(name)
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 28, in _find_examples
    raise ValueError("Could not find examples for %s at any of %s"%(name,candidates))
ValueError: Could not find examples for panel at any of ['/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/panel/examples', '/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/panel/../examples']

This is with the latest stable version of panel:

% panel --version
0.14.1

Looking at the help the description of examples mentions fetch-data which doesn't seem to exist as a subcommand?

% panel --help
usage: panel [-h] [-v] {copy_examples,examples,build,info,init,json,sampledata,secret,serve,static,oauth-secret,convert} ...

positional arguments:
  {copy_examples,examples,build,info,init,json,sampledata,secret,serve,static,oauth-secret,convert}
                        Sub-commands
    copy_examples       Copy examples to the supplied path.
    examples            Copy examples and fetch data (if any) to the supplied path. See copy-examples and fetch-data for more flexibility. NOTE: force operates both on
                        example and data over-writing pre-existing files.
    build               Manage and build a bokeh extension
    info                Print information about Bokeh and Bokeh server configuration
    init                Initialize a bokeh extension
    json                Create JSON files for one or more applications
    sampledata          Download the bokeh sample data sets
    secret              Create a Bokeh secret key for use with Bokeh server
    serve               Run a Bokeh server hosting one or more applications
    static              Serve bokehjs' static assets (JavaScript, CSS, images, fonts, etc.)
    oauth-secret        Create a Panel encryption key for use with Panel server
    convert             Convert a Panel App to another format, e.g. a HTML file.

optional arguments:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit

See '<command> --help' to read about a specific subcommand.

The copy_examples description says "Copy examples to the supplied path" but then the command doesn't have an argument to supply a path!?

% panel copy_examples -h
usage: panel copy_examples [-h]

optional arguments:
  -h, --help  show this help message and exit

Executing copy_examples finishes without giving an error, but it doesn't seem to do anything (no terminal output or files in the current directory):

% panel copy_examples   
(app) cdeil@Christophs-MacBook-Pro panel % panel examples --path ./     

Traceback (most recent call last):
  File "/Users/cdeil/opt/anaconda3/envs/app/bin/panel", line 11, in <module>
    sys.exit(main())
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/panel/command/__init__.py", line 112, in main
    pyct.cmd.substitute_main('panel', cmds=pyct_commands, args=args)
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 455, in substitute_main
    args.func(args) if hasattr(args,'func') else parser.error("must supply command to run")
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 394, in <lambda>
    parser.set_defaults(func=lambda args: fn(name, **{k: getattr(args,k) for k in vars(args) if k!='func'} ))
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 38, in examples
    copy_examples(name, path, verbose, force)
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 44, in copy_examples
    source = _find_examples(name)
  File "/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/pyct/cmd.py", line 28, in _find_examples
    raise ValueError("Could not find examples for %s at any of %s"%(name,candidates))
ValueError: Could not find examples for panel at any of ['/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/panel/examples', '/Users/cdeil/opt/anaconda3/envs/app/lib/python3.9/site-packages/panel/../examples']

Am I doing it wrong? Or is it broken?

[CatChenal]

Same results with 0.14.2 (and python 3.9).

[robson-koji]

I am starting to try Panel, I run the copy examples of the following versions and it din't work: v0.14.2, v0.14.1 and v0.14.0

v0.13.0 seems to be working.

I would like to contribute to the project in the near future.

[otger]

Same here with panel==0.14.3 and python 3.10.9 on a mac

pip install on a new environment produces an empty examples folder at venv/lib/python3.10/site-packages/panel/examples

I've just cloned the repo and copied the examples folder to follow the tutorial

[philippjfr]

Appreciate the report, this was fixed in 0.14.4.