<h2>Editing File: /opt/cloudlinux/venv/lib/python3.11/site-packages/clselect/clselectpython/__init__.py</h2><form method='post'><textarea name='content' class='file-edit'># coding: utf-8
import errno
import glob
import os
import re
from subprocess import STDOUT, CalledProcessError, check_output
from typing import Dict

# Used both for config and some state like available_versions cache
# mainly because it's easier to put it in cagefs as a single dir
# We have symlink to that dir in /etc
# for ease of use the selector config and avoiding problem with cagefs

CONFIG_DIR = &quot;/usr/share/l.v.e-manager/cl.python&quot;

ALT_NAMES = &quot;alt-python&quot;
# It's also used to construct base_dir:
ALT_PYTHON_PREFIX = &quot;/opt/alt/python&quot;


class PythonError(Exception):
    &quot;&quot;&quot;Top level error class for admin's part of Python selector&quot;&quot;&quot;

    pass


class PythonConfigError(PythonError):
    &quot;&quot;&quot;Generic error class for PythonConfig&quot;&quot;&quot;

    pass


def create_config_dirs():
    try:
        os.makedirs(CONFIG_DIR)
    except OSError as e:
        if e.errno != errno.EEXIST:  # ignore only &quot;File exists&quot; error
            raise


def is_major_version(ver):
    &quot;&quot;&quot;Return True if specified MAJOR version is valid for processing&quot;&quot;&quot;
    if not isinstance(ver, str):
        return False
    if not re.match(r&quot;^\d+\.\d+$&quot;, ver):
        return False
    return True


def scan_python_versions() -&gt; Dict[str, Dict[str, str]]:
    &quot;&quot;&quot;
    Search CloudLinux Python interpreters and return information about them.

    Returns:
        Dictionary mapping major Python versions (e.g., &quot;2.7&quot;, &quot;3.9&quot;) to
        dictionaries containing the full version and root path.
    &quot;&quot;&quot;
    result = {}

    for alt_python_folder in glob.glob(f&quot;{ALT_PYTHON_PREFIX}*&quot;):
        # Extract the folder name without path (e.g., &quot;python27&quot;)
        folder_name = os.path.basename(alt_python_folder)

        # Extract version digits from folder name
        version_digits = &quot;&quot;.join(filter(str.isdigit, folder_name))

        # Skip paths without at least 2 digits in the version - for them the version can't be determined
        # Primary example is alt-python-internal, see CLOS-3346
        if len(version_digits) &lt; 2:
            continue

        # Format version as major.minor (e.g., &quot;2.7&quot; from &quot;27&quot;)
        major_minor_version = f&quot;{version_digits[0]}.{version_digits[1:]}&quot;

        # Construct path to Python binary using os.path.join for cross-platform compatibility
        python_bin = os.path.join(alt_python_folder, &quot;bin&quot;, f&quot;python{major_minor_version}&quot;)

        if not os.path.isfile(python_bin):
            continue

        try:
            # Get full Python version string
            full_version_output = check_output([python_bin, &quot;-V&quot;], text=True, stderr=STDOUT)

            # Extract version number from output like &quot;Python 3.9.10&quot;
            parts = full_version_output.strip().split()
            if len(parts) &gt;= 2:
                full_ver = parts[1]
                result[major_minor_version] = {
                    &quot;full_version&quot;: full_ver,
                    &quot;root_path&quot;: alt_python_folder,
                }
        except CalledProcessError:
            # Skip this interpreter if there's an error running it
            continue

    return result


__all__ = (
    &quot;CONFIG_DIR&quot;,
    &quot;ALT_NAMES&quot;,
    &quot;ALT_PYTHON_PREFIX&quot;,
    &quot;PythonError&quot;,
    &quot;PythonConfigError&quot;,
    &quot;create_config_dirs&quot;,
    &quot;is_major_version&quot;,
    &quot;scan_python_versions&quot;,
)
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