juc500 정상동작

vendor/python-windows/Lib/site-packages/virtualenv/discovery/discover.py

@@ -0,0 +1,43 @@
+"""Virtualenv-specific Discover base class for plugin-based Python discovery."""
+
+from __future__ import annotations
+
+import os
+from abc import ABC, abstractmethod
+from typing import TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from argparse import ArgumentParser
+    from collections.abc import Mapping
+
+    from python_discovery import PythonInfo
+
+    from virtualenv.config.cli.parser import VirtualEnvOptions
+
+
+class Discover(ABC):
+    @classmethod
+    def add_parser_arguments(cls, parser: ArgumentParser) -> None:
+        raise NotImplementedError
+
+    def __init__(self, options: VirtualEnvOptions) -> None:
+        self._has_run = False
+        self._interpreter: PythonInfo | None = None
+        self._env: Mapping[str, str] = options.env if options.env is not None else os.environ
+
+    @abstractmethod
+    def run(self) -> PythonInfo | None:
+        raise NotImplementedError
+
+    @property
+    def interpreter(self) -> PythonInfo | None:
+        """The interpreter as returned by :meth:`run`, cached."""
+        if self._has_run is False:
+            self._interpreter = self.run()
+            self._has_run = True
+        return self._interpreter
+
+
+__all__ = [
+    "Discover",
+]