xonsh uses native paths

[scopatz]

I believe that this will fix the issue described in xonsh/xonsh#3676

CC melund

[melund]

Nope. It doesn't work.

Also, It doesn't fix the wrongs paths generated in .xonshrc by conda init xonsh

e.g. /C/Users/...

# >>> conda initialize >>>
# !! Contents within this block are managed by 'conda init' !!
import sys as _sys
from types import ModuleType as _ModuleType
_mod = _ModuleType("xontrib.conda",
                   "Autogenerated from $(/C/Users/mel/Miniconda3/Scripts/conda.exe shell.xonsh hook)")
__xonsh__.execer.exec($("/C/Users/mel/Miniconda3/Scripts/conda.exe" "shell.xonsh" "hook"),

Fixing this manually, allows xonsh to start but gives a re.error trying to activate an environment.

snail@sea ~
🐌 conda activate pytest6
re.error: bad escape \U at position 2

snail@sea ~
🐌

[scopatz]

Thanks @melund - I have seen this same behavior on windows now myself too

[scopatz]

@melund - in your manual fix you probably needed to write \\U rather than \U, to avoid unicode interpolation

[scopatz]

OK, I think I have fixed the path issue with the init command

[melund]

@scopatz That fixes the init script.

But it leave the error _get_deactivate_scripts() in "activate.py".

``TypeError: expected str, bytes or os.PathLike object, not NoneType```

(base) snail@sea ~
🐌 conda activate pytest6

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

    Traceback (most recent call last):
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\cli\main.py", line 140, in main
        return activator_main()
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\activate.py", line 1096, in main
        print(activator.execute(), end='')
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\activate.py", line 182, in execute
        return getattr(self, self.command)()
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\activate.py", line 156, in activate
        builder_result = self.build_activate(self.env_name_or_prefix)
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\activate.py", line 301, in build_activate
        return self._build_activate_stack(env_name_or_prefix, False)
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\activate.py", line 379, in _build_activate_stack
        deactivate_scripts = self._get_deactivate_scripts(old_conda_prefix)
      File "C:\Users\mel\Miniconda3\lib\site-packages\conda\activate.py", line 708, in _get_deactivate_scripts
        prefix, 'etc', 'conda', 'deactivate.d', '*' + self.script_extension
      File "C:\Users\mel\Miniconda3\lib\ntpath.py", line 76, in join
        path = os.fspath(path)
    TypeError: expected str, bytes or os.PathLike object, not NoneType

`$ C:\Users\mel\Miniconda3\Scripts\conda-script.py shell.xonsh activate pytest6`

  environment variables:
                 CIO_TEST=<not set>
                CONDA_BAT=C:\Users\mel\Miniconda3\condabin\conda.bat
        CONDA_DEFAULT_ENV=base
                CONDA_EXE=C:/Users/mel/Miniconda3/Scripts/conda.exe
    CONDA_PROMPT_MODIFIER=(base)
         CONDA_PYTHON_EXE=C:/Users/mel/Miniconda3/python.exe
               CONDA_ROOT=C:\Users\mel\Miniconda3
              CONDA_SHLVL=1
           CURL_CA_BUNDLE=<not set>
                 HOMEPATH=\Users\mel
                     PATH=C:\Users\mel\Miniconda3\condabin;C:\Program Files\WindowsApps\Microsof
                          t.WindowsTerminalPreview_1.2.2234.0_x64__8wekyb3d8bbwe;C:\WINDOWS\syst
                          em32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPo
                          werShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Program
                          Files\TortoiseGit\bin;C:\Program
                          Files\dotnet\;C:\ProgramData\chocolatey\bin;C:\Program
                          Files\PowerShell\7\;C:\Program Files\Git\cmd;C:\Program
                          Files\Git\mingw64\bin;C:\Program Files\Git\usr\bin;C:\Users\mel\Minico
                          nda3;C:\Users\mel\Miniconda3\Library\mingw-w64\bin;C:\Users\mel\Minico
                          nda3\Library\usr\bin;C:\Users\mel\Miniconda3\Library\bin;C:\Users\mel\
                          Miniconda3\Scripts;C:\Users\mel\AppData\Local\Microsoft\WindowsApps;C:
                          \Users\mel\AppData\Local\Programs\Microsoft VS Code\bin;C:\Program
                          Files\CMake\bin;C:\Program Files (x86)\GitHub CLI\;C:\src\flutter\bin;
             PSMODULEPATH=C:\Program Files\WindowsPowerShell\Modules;C:\WINDOWS\system32\Windows
                          PowerShell\v1.0\Modules
         PYTHONIOENCODING=1252
       REQUESTS_CA_BUNDLE=<not set>
            SSL_CERT_FILE=<not set>

     active environment : None
            shell level : 1
       user config file : C:\Users\mel\.condarc
 populated config files : C:\Users\mel\.condarc
          conda version : 4.8.4
    conda-build version : 3.19.2
         python version : 3.7.6.final.0
       virtual packages : __cuda=10.2
       base environment : C:\Users\mel\Miniconda3  (writable)
           channel URLs : https://conda.anaconda.org/conda-forge/win-64
                          https://conda.anaconda.org/conda-forge/noarch
                          https://repo.anaconda.com/pkgs/main/win-64
                          https://repo.anaconda.com/pkgs/main/noarch
                          https://repo.anaconda.com/pkgs/r/win-64
                          https://repo.anaconda.com/pkgs/r/noarch
                          https://repo.anaconda.com/pkgs/msys2/win-64
                          https://repo.anaconda.com/pkgs/msys2/noarch
          package cache : C:\Users\mel\Miniconda3\pkgs
                          C:\Users\mel\.conda\pkgs
                          C:\Users\mel\AppData\Local\conda\conda\pkgs
       envs directories : C:\Users\mel\Miniconda3\envs
                          C:\Users\mel\.conda\envs
                          C:\Users\mel\AppData\Local\conda\conda\envs
               platform : win-64
             user-agent : conda/4.8.4 requests/2.22.0 CPython/3.7.6 Windows/10 Windows/10.0.19041
          administrator : False
             netrc file : None
           offline mode : False


An unexpected error has occurred. Conda has prepared the above report.

If submitted, this report will be used by core maintainers to improve
future releases of conda.
Would you like conda to send this report to the core maintainers?

[scopatz]

@melund - that seems like it might be because you are in some weird state where $CONDA_PREFIX is not set. That error in the deactivate part is being caused by https://github.com/conda/conda/blob/master/conda/activate.py#L316. This seems like a general conda activation issues, rather than something specifically caused by the Xonsh activation here

[melund]

Well. Somehow %CONDA_PREFIX% is not set after xonsh lunches. So I think it is a problem with the init script.

On a side note: The new conda activate system is mess on windows. If you have both conda init cmd.exe and conda init xonsh enabled. Then the both init scripts are always run when starting xonsh and I get this warnings:

WARNING: conda environment not activated properly. This is likely because you have a conda init inside of your ~/.bashrc (unix) or *.bat activation file (windows). This is causing conda to activate twice in xonsh. Please remove the conda init block from your other shell.

This is because the conda init cmd.exe hooks into HKEY_CURRENT_USER\Software\Microsoft\Command Processor\AutoRun which will always run when xonsh starts.

[scopatz]

If you have both conda init cmd.exe and conda init xonsh enabled.

Yeah I have seen that on Linux with Bash too

[melund]

@scopatz I have a potential fix for this. I will make a PR to your branch...

[melund]

@scopatz Could I get you to accept the PR to your fork (scopatz#1)? I have also merged upstream/master so there is a chance that tests will pass this time.