我正在 Mac OS X 10.6 上尝试一些 python 网络编程。我正在使用 Homebrew 安装的 Python 2.7,并尝试从包含 UDP 客户端和服务器的Foundations Of Python Network Programming(一本好书)中运行一个简单的脚本,但是在尝试使用来自插座模块。脚本如下:
#! /usr/bin/env python
import socket, sys
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
MAX = 65535
PORT = 1060
if sys.argv[1:] == ['server']:
s.bind(('127.0.0.1', PORT))
print('Listening at', s.getsockname())
while True:
data, address = s.recvfrom(MAX)
print('The client at ', address, ' says ', repr(data))
s.sendto('Your data was %d bytes' % len(data), address)
elif sys.argv[1:] == ['client']:
print('address before sending: ', s.getsockname())
s.sendto('This is my message', ('127.0.0.1', PORT))
print('address after sending: ', s.getsockname())
data, address = s.recvfrom(MAX)
print('The server at ', address, ' says ', repr(data))
else:
print >>sys.stderr, 'usage: udp_local.py client|server'
通过运行此脚本python script.py server
会导致以下错误:
Traceback (most recent call last):
File "udp_local.py", line 5, in <module>
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
AttributeError: 'module' object has no attribute 'AF_INET'
我已经尝试过python控制台,运行后import socket
我似乎无法获得任何模块变量。我已经在谷歌上进行了广泛的搜索,但还没有遇到同样的问题。有没有人知道它可能是什么?以防万一,这里是输出env python
:
Python 2.7.1 (r271:86832, Jul 10 2011, 10:39:45)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin