fix: check if the pip executable is working on windows

src/python/python.ts

@@ -23,7 +23,7 @@ export function setupPython(version: string, setupDir: string, arch: string) {
 export async function setupPythonViaSystem(version: string, setupDir: string, _arch: string) {
   switch (process.platform) {
     case "win32": {
-      await setupChocoPack("python3", version, [`/InstallDir:${setupDir}`])
+      setupChocoPack("python3", version, setupDir ? [`/InstallDir:${setupDir}`] : [])
       // Adding the bin dir to the path
       /** The directory which the tool is installed to */
       activateWinPython(setupDir)

src/utils/setup/setupPipPack.ts

@@ -7,6 +7,7 @@ import { addPath } from "../path/addPath"
 import { setupPython } from "../../python/python"
 import { isBinUptoDate } from "./version"
 import { join } from "path"
+import { getVersion } from "../../default_versions"
 
 let pip: string | undefined
 
@@ -25,6 +26,15 @@ export async function setupPipPack(name: string, version?: string) {
       pip = "pip3"
     }
   }
+  if (process.platform === "win32") {
+    try {
+      // test if pip executable is working
+      await execa(pip, ["--version"], { stdio: "inherit" })
+    } catch (err) {
+      await setupPython(getVersion("python", undefined), "", process.arch)
+      pip = "pip3"
+    }
+  }
 
   execa.sync(pip, ["install", version !== undefined && version !== "" ? `${name}==${version}` : name], {
     stdio: "inherit",