import base64 def safe_base64_decode(s): while len(s) % 4 != 0: s = s + '=' return base64.b64decode(s) # 测试: assert b'abcd' == safe_base64_decode('YWJjZA=='), safe_base64_decode('YWJjZA==') assert b'abcd' == safe_base64_decode('YWJjZA'), safe_base64_decode('YWJjZA') print('ok')
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