Improved interpreter switching

package.json

@@ -117,7 +117,7 @@
       },
       {
         "command": "python.setInterpreter",
-        "title": "Select Workspace Interpreter",
+        "title": "Select Interpreter",
         "category": "Python"
       },
       {

src/client/interpreter/index.ts

@@ -58,7 +58,11 @@ export class InterpreterManager implements Disposable {
             pythonPath = path.join('${workspaceRoot}', path.relative(workspace.rootPath!, pythonPath));
         }
         const pythonConfig = workspace.getConfiguration('python');
-        pythonConfig.update('pythonPath', pythonPath).then(() => {
+        let global = null;
+        if (typeof workspace.rootPath !== 'string') {
+            global = true;
+        }
+        pythonConfig.update('pythonPath', pythonPath, global).then(() => {
             //Done
         }, reason => {
             window.showErrorMessage(`Failed to set 'pythonPath'. Error: ${reason.message}`);

src/client/providers/setInterpreterProvider.ts

@@ -58,9 +58,6 @@ export class SetInterpreterProvider implements vscode.Disposable {
     }
 
     private setInterpreter() {
-        if (typeof vscode.workspace.rootPath !== 'string') {
-            return vscode.window.showErrorMessage('Please open a workspace to select the Python Interpreter');
-        }
         this.presentQuickPick();
     }
 }