import base64 def safe_base64_decode(s): remainder = len(s) % 4 if remainder != 0: return base64.b64decode(s + b'=' * (4- remainder)) return base64.b64decode(s)
assert b'abcd' == safe_base64_decode(b'YWJjZA=='), safe_base64_decode('YWJjZA==') assert b'abcd' == safe_base64_decode(b'YWJjZA'), safe_base64_decode('YWJjZA') print('Pass')
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中大-雪山
import base64 def safe_base64_decode(s): remainder = len(s) % 4 if remainder != 0: return base64.b64decode(s + b'=' * (4- remainder)) return base64.b64decode(s)
assert b'abcd' == safe_base64_decode(b'YWJjZA=='), safe_base64_decode('YWJjZA==') assert b'abcd' == safe_base64_decode(b'YWJjZA'), safe_base64_decode('YWJjZA') print('Pass')