add alternative bin search path in case of conda env under windows

src/poetry/utils/env.py

@@ -1073,6 +1073,7 @@ class Env:
     def __init__(self, path: Path, base: Optional[Path] = None) -> None:
         self._is_windows = sys.platform == "win32"
         self._is_mingw = sysconfig.get_platform().startswith("mingw")
+        self._is_conda = bool(os.environ.get("CONDA_DEFAULT_ENV"))
 
         if not self._is_windows or self._is_mingw:
             bin_dir = "bin"
@@ -1134,9 +1135,14 @@ def parent_env(self) -> "GenericEnv":
         return GenericEnv(self.base, child_env=self)
 
     def find_executables(self) -> None:
+        if self._is_windows and self._is_conda:
+            python_bin_dir = self._bin_dir.parent
+        else:
+            python_bin_dir = self._bin_dir
+
         python_executables = sorted(
             p.name
-            for p in self._bin_dir.glob("python*")
+            for p in python_bin_dir.glob("python*")
             if re.match(r"python(?:\d+(?:\.\d+)?)?(?:\.exe)?$", p.name)
         )
         if python_executables:
@@ -1408,6 +1414,8 @@ def _bin(self, bin: str) -> str:
 
                 if bin_path.exists():
                     return str(bin_path)
+                elif Path(self._bin_dir.parent / (bin + ".exe")).exists():
+                    return str(Path(self._bin_dir.parent / (bin + ".exe")))
 
             return bin