Problem of quotes inside the code of use_python() ?

[gael-millot]

reticulate 1.41.0
R 4.4.2
Windows 11 24H2 26100.3194
Python 3.11.5 (windows install by anaconda)

When using reticulate::use_python() with a path that exists (I double checked), I have this error:

> reticulate::use_python(python = "C:/ProgramData/anaconda3/python.exe")

# >>>>>>>>>>>>>>>>>>>>>> ERROR REPORT <<<<<<<<<<<<<<<<<<<<<<

    Traceback (most recent call last):
      File "C:\PROGRA~3\ANACON~1\Lib\site-packages\conda\exception_handler.py", line 17, in __call__
        return func(*args, **kwargs)
               ^^^^^^^^^^^^^^^^^^^^^
      File "C:\PROGRA~3\ANACON~1\Lib\site-packages\conda\cli\main.py", line 54, in main_subshell
        parser = generate_parser(add_help=True)
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      File "C:\PROGRA~3\ANACON~1\Lib\site-packages\conda\cli\conda_argparse.py", line 127, in generate_parser
        configure_parser_plugins(sub_parsers)
      File "C:\PROGRA~3\ANACON~1\Lib\site-packages\conda\cli\conda_argparse.py", line 354, in configure_parser_plugins
        else set(find_commands()).difference(plugin_subcommands)
                 ^^^^^^^^^^^^^^^
      File "C:\PROGRA~3\ANACON~1\Lib\site-packages\conda\cli\find_commands.py", line 71, in find_commands
        for entry in os.scandir(dir_path):
                     ^^^^^^^^^^^^^^^^^^^^
    OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: 'C:\\Users\\gmillot\\AppData\\Local\\Pandoc"'

`$ C:\PROGRA~3\ANACON~1\Scripts\conda-script.py info --base`


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 <package>

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 <package>


No report sent. To permanently opt-out, use

    $ conda config --set report_errors false

Warning messages:
1: In readLines(rf) :
  incomplete final line found on 'C:\Users\gmillot\AppData\Local\Temp\RtmpOUq05I\file9bc6e9d57d8'
2: In system2(conda, c("info", "--base"), stdout = TRUE) :
  running command '"C:/ProgramData/anaconda3/condabin/conda.bat" info --base' had status 1
> 
> system2(conda, c("info", "--base"), stdout = TRUE)

To find Pandoc followed by a double quote in the error message

OSError: [WinError 123] The filename, directory name, or volume label syntax is incorrect: 'C:\\Users\\gmillot\\AppData\\Local\\Pandoc"'

is weird.
Thanks for your consideration !
Best.

[t-kalinowski]

This looks like an issue with Conda.

Does the issue reproduce if you use a standard Python installation?

[gael-millot]

Hi.
Yep. Do not have the problem with the standard installation.
But since I use Python via Conda and I believe I am not the only one to do that, may be at least report this incompatibility ?
Thanks.