问题 I'm trying to write a program on JupyterLab (Ipython) which takes Command Line arguments as its input. #! python3 # pw.py - An insecure password locker program. PASSWORDS = {'email': 'F7minlBDDuvMJuxESSKHFhTxFtjVB6', 'blog': 'VmALvQyKAxiVH5G8v01if1MLZF3sdt', 'luggage': '12345'} import sys,pyperclip if len(sys.argv) < 2: print('Usage: python pw.py [account] - copy account password') sys.exit() account = sys.argv[1] # first command line arg is the account name if account in PASSWORDS: pyperclip