Es gibt viele Möglichkeiten: def calculateString(): return "".join(map(str,range(10**8))) Traceback (most recent call last): File "Dummy.py", line 5, in <module> print(exceedMemory1()) File "Dummy.py", line 3, in exceedMemory1 return "".join(map(str,range(10**8))) MemoryError