Python-发送数据包发出错误-Minecraft数据包

我正在使用以下脚本：

import socket
import struct

username = "username_value"
verification_key = "verification_key"

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  # boilerplate
s.connect(("example.com", 1234))  # adjust accordingly

# now for the packet
# note that the String type is specified as having a length of 64, we'll pad that

packet = ""

packet += struct.pack("B", 1)  # packet type
packet += struct.pack("B", 7)  # protocol version
packet += "%-64s" % username  # magic!
packet += "%-64s" % verification_key
packet += struct.pack("B", 0)  # that unused byte, assuming a NULL byte here

# send what we've crafted
s.send(packet)

    packet += struct.pack("B", 1)  # packet type
TypeError: Can't convert 'bytes' object to str implicitly

并得到以下回复：

import socket
import struct

username = "username_value"
verification_key = "verification_key"

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)  # boilerplate
s.connect(("example.com", 1234))  # adjust accordingly

# now for the packet
# note that the String type is specified as having a length of 64, we'll pad that

packet = ""

packet += struct.pack("B", 1)  # packet type
packet += struct.pack("B", 7)  # protocol version
packet += "%-64s" % username  # magic!
packet += "%-64s" % verification_key
packet += struct.pack("B", 0)  # that unused byte, assuming a NULL byte here

# send what we've crafted
s.send(packet)

    packet += struct.pack("B", 1)  # packet type
TypeError: Can't convert 'bytes' object to str implicitly

---

我几乎是Python的新手，刚刚开始，但我理解Python语言。我仔细阅读并发现了一些关于Python3改变数据包使用方式的信息。我觉得有点绝望。帮忙？谢谢

在python 3中，您必须隐式地将字符串

数据包定义为字节

packet = b""

因此，不是packet+=struct.pack（“B”，1），而是packet=B“1”@EvanJerald Nope，
B'\x01'
。在Python3中随意使用
struct
。这不是问题。