fix: manually memoize getPython

src/python/python.ts

@@ -26,7 +26,11 @@ import { isBinUptoDate } from "../utils/setup/version.js"
 import { unique } from "../utils/std/index.js"
 import { MinVersions } from "../versions/default_versions.js"
 
-export async function setupPython(version: string, setupDir: string, arch: string): Promise<InstallationInfo> {
+export async function setupPython(
+  version: string,
+  setupDir: string,
+  arch: string,
+): Promise<InstallationInfo & { bin: string }> {
   const installInfo = await findOrSetupPython(version, setupDir, arch)
   assert(installInfo.bin !== undefined)
   const foundPython = installInfo.bin
@@ -41,7 +45,7 @@ export async function setupPython(version: string, setupDir: string, arch: strin
 
   await setupWheel(foundPython)
 
-  return installInfo
+  return installInfo as InstallationInfo & { bin: string }
 }
 
 async function setupPipx(foundPython: string) {

src/utils/setup/setupPipPack.ts

@@ -154,14 +154,17 @@ async function getPipxBinDir_() {
 }
 const getPipxBinDir = memoize(getPipxBinDir_, { promise: true })
 
-async function getPython_(): Promise<string> {
-  const pythonBin = (await setupPython(getVersion("python", undefined, await ubuntuVersion()), "", process.arch)).bin
-  if (pythonBin === undefined) {
-    throw new Error("Python binary was not found")
+/* eslint-disable require-atomic-updates */
+let pythonBin: string | undefined
+
+async function getPython(): Promise<string> {
+  if (pythonBin !== undefined) {
+    return pythonBin
   }
+
+  pythonBin = (await setupPython(getVersion("python", undefined, await ubuntuVersion()), "", process.arch)).bin
   return pythonBin
 }
-const getPython = memoize(getPython_, { promise: true })
 
 type PipxShowType = {
   venvs: Record<string, {