Function _get_conda_like_executable

IPython/core/magics/packaging.py:36–75

Find the path to the given executable Parameters ---------- executable: string Value should be: conda, mamba or micromamba

(command)

def _get_conda_like_executable(command):
    """Find the path to the given executable

    Parameters
    ----------

    executable: string
        Value should be: conda, mamba or micromamba
    """
    # Check for a environment variable bound to the base executable, both conda and mamba
    # set these when activating an environment.
    base_executable = "CONDA_EXE"
    if "mamba" in command.lower():
        base_executable = "MAMBA_EXE"
    if base_executable in os.environ:
        executable = Path(os.environ[base_executable])
        if executable.is_file():
            return str(executable.resolve())

    # Check if there is a conda executable in the same directory as the Python executable.
    # This is the case within conda's root environment.
    executable = Path(sys.executable).parent / command
    if executable.is_file():
        return str(executable)

    # Otherwise, attempt to extract the executable from conda history.
    # This applies in any conda environment. Parsing this way is error prone because
    # different versions of conda and mamba include differing cmd values such as
    # `conda`, `conda-script.py`, or `path/to/conda`, here use the raw command provided.
    history = Path(sys.prefix, "conda-meta", "history").read_text(encoding="utf-8")
    match = re.search(
        rf"^#\s*cmd:\s*(?P<command>.*{command})\s[create|install]",
        history,
        flags=re.MULTILINE,
    )
    if match:
        return match.groupdict()["command"]

    # Fallback: assume the executable is available on the system path.
    return command


CONDA_COMMANDS_REQUIRING_PREFIX = {