Python 3.3 socket programming error [closed]

问题

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Closed 6 years ago.

In Python 3.3 I am getting an error while executing this line:

print ("Message from server : ") + msg

where msg is received data from server (Trying to do socket programming as you might guess)

回答1:

print() returns None in Python 3. So, you're trying to concatenate(or add) None with msg, which results in an error.

Try string formatting:

print ("Message from server : {}".format(msg))

来源：https://stackoverflow.com/questions/18892619/python-3-3-socket-programming-error