Fixes issue that display incorrect interpreter briefly before updatin…

…g it to the right value (#1054)

* 🐛 fire change event only when changes are detected
* 📝 change log
* 🔨 fix typos
* Fixes #981

news/2 Fixes/981.md

@@ -0,0 +1 @@
+Fixes issue that display incorrect interpreter briefly before updating it to the right value.

src/client/common/configSettings.ts

@@ -53,6 +53,10 @@ export class PythonSettings extends EventEmitter implements IPythonSettings {
         this.workspaceRoot = workspaceFolder ? workspaceFolder : vscode.Uri.file(__dirname);
         this.disposables.push(vscode.workspace.onDidChangeConfiguration(() => {
             this.initializeSettings();
+
+            // If workspace config changes, then we could have a cascading effect of on change events.
+            // Let's defer the change notification.
+            setTimeout(() => this.emit('change'), 1);
         }));
 
         this.initializeSettings();
@@ -292,10 +296,6 @@ export class PythonSettings extends EventEmitter implements IPythonSettings {
             launchArgs: [],
             activateEnvironment: true
         };
-
-        // If workspace config changes, then we could have a cascading effect of on change events.
-        // Let's defer the change notification.
-        setTimeout(() => this.emit('change'), 1);
     }
 
     public get pythonPath(): string {