added Scripts to PATH on Windows (#173)

Co-authored-by: Nikita Bykov <v-nibyko@microsoft.com>

dist/index.js

@@ -6417,7 +6417,7 @@ function binDir(installDir) {
 // For example, PyPy 7.0 contains Python 2.7, 3.5, and 3.6-alpha.
 // We only care about the Python version, so we don't use the PyPy version for the tool cache.
 function usePyPy(majorVersion, architecture) {
-    const findPyPy = tc.find.bind(undefined, 'PyPy', majorVersion.toString());
+    const findPyPy = tc.find.bind(undefined, 'PyPy', majorVersion);
     let installDir = findPyPy(architecture);
     if (!installDir && IS_WINDOWS) {
         // PyPy only precompiles binaries for x86, but the architecture parameter defaults to x64.
@@ -6437,6 +6437,10 @@ function usePyPy(majorVersion, architecture) {
     core.exportVariable('pythonLocation', pythonLocation);
     core.addPath(installDir);
     core.addPath(_binDir);
+    // Starting from PyPy 7.3.1, the folder that is used for pip and anything that pip installs should be "Scripts" on Windows.
+    if (IS_WINDOWS) {
+        core.addPath(path.join(installDir, 'Scripts'));
+    }
     const impl = 'pypy' + majorVersion.toString();
     core.setOutput('python-version', impl);
     return { impl: impl, version: versionFromPath(installDir) };
@@ -6513,9 +6517,10 @@ function findPythonVersion(version, architecture) {
     return __awaiter(this, void 0, void 0, function* () {
         switch (version.toUpperCase()) {
             case 'PYPY2':
-                return usePyPy(2, architecture);
+                return usePyPy('2', architecture);
             case 'PYPY3':
-                return usePyPy(3, architecture);
+                // keep pypy3 pointing to 3.6 for backward compatibility
+                return usePyPy('3.6', architecture);
             default:
                 return yield useCpythonVersion(version, architecture);
         }

src/find-python.ts

@@ -51,8 +51,11 @@ function binDir(installDir: string): string {
 // A particular version of PyPy may contain one or more versions of the Python interpreter.
 // For example, PyPy 7.0 contains Python 2.7, 3.5, and 3.6-alpha.
 // We only care about the Python version, so we don't use the PyPy version for the tool cache.
-function usePyPy(majorVersion: 2 | 3, architecture: string): InstalledVersion {
-  const findPyPy = tc.find.bind(undefined, 'PyPy', majorVersion.toString());
+function usePyPy(
+  majorVersion: '2' | '3.6',
+  architecture: string
+): InstalledVersion {
+  const findPyPy = tc.find.bind(undefined, 'PyPy', majorVersion);
   let installDir: string | null = findPyPy(architecture);
 
   if (!installDir && IS_WINDOWS) {
@@ -77,6 +80,10 @@ function usePyPy(majorVersion: 2 | 3, architecture: string): InstalledVersion {
 
   core.addPath(installDir);
   core.addPath(_binDir);
+  // Starting from PyPy 7.3.1, the folder that is used for pip and anything that pip installs should be "Scripts" on Windows.
+  if (IS_WINDOWS) {
+    core.addPath(path.join(installDir, 'Scripts'));
+  }
 
   const impl = 'pypy' + majorVersion.toString();
   core.setOutput('python-version', impl);
@@ -186,9 +193,10 @@ export async function findPythonVersion(
 ): Promise<InstalledVersion> {
   switch (version.toUpperCase()) {
     case 'PYPY2':
-      return usePyPy(2, architecture);
+      return usePyPy('2', architecture);
     case 'PYPY3':
-      return usePyPy(3, architecture);
+      // keep pypy3 pointing to 3.6 for backward compatibility
+      return usePyPy('3.6', architecture);
     default:
       return await useCpythonVersion(version, architecture);
   }