Update file app.py

app.py

@@ -224,5 +224,5 @@ def logout():
 
         
 if __name__ == '__main__':
-    port = int(os.eniron.get('PORT', 8080))
+    port = int(os.environ.get('PORT', 8080))
     app.run(host='0.0.0.0', port=port ,debug=True)
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