When using Python to do network programming will inevitably encounter convert a string to the byte stream，Here we record the following commonly used methods：
First byte array to a string，That is str：
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b = b'some byte array' str(b, encoding = "utf-8") #or bytes.decode(b) |
Then the string to a byte array：
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s = 'some string' bytes(s, encoding = "utf8") #or str.encode(s) |
Either the above two methods are possible。
Original article written by LogStudio：R0uter's Blog » Python strings and arrays of bytes
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