Update the logic of finding python interpreter (#1631)

* Change the precedence of finding python interpreter

* Add changelog

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Update logic

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* Update logic

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

Author: dukecat0

changelog.d/1521.bugfix.md

@@ -0,0 +1 @@
+Update the logic of finding python interpreter such that `--fetch-missing-python` works on Windows

src/pipx/interpreter.py

@@ -97,7 +97,8 @@ def find_python_interpreter(python_version: str, fetch_missing_python: bool = Fa
         if py_executable:
             return py_executable
     except (subprocess.CalledProcessError, FileNotFoundError) as e:
-        raise InterpreterResolutionError(source="py launcher", version=python_version) from e
+        if not fetch_missing_python and not FETCH_MISSING_PYTHON:
+            raise InterpreterResolutionError(source="py launcher", version=python_version) from e
 
     if fetch_missing_python or FETCH_MISSING_PYTHON:
         try: