先su到root帐户
进入/usr/ports/lang/python26
然后直接make
整个过程如图所示，经过漫长的编译之后...
然后make install
又是漫长的等待...
出现Install them as needed.
====
--------------------------------------------------------
This package was built with the experimental POSIX
semaphore support. Please ensure that the kernel on the
system where you deploy this package is either compiled
with 'option P1003_1B_SEMAPHORES', or has the sem.ko
kernel module loaded.
--------------------------------------------------------
===> Compressing manual pages for python26-2.6.1_2
===> Running ldconfig
/sbin/ldconfig -m /usr/local/lib
===> Registering installation for python26-2.6.1_2
hwt#
恭喜，安装成功
然后输入hwt# python
进入如下python开发环境
Python 2.5.4 (r254:67916, Apr 13 2009, 18:09:11)
[GCC 4.2.1 20070719 [FreeBSD]] on freebsd7
Type "help", "copyright", "credits" or "license" for more information.
>>>
输入print 'hello money'
出现
>>> print 'hello money'
hello money
>>>
恭喜，第一个python程序出来了
不需要第三个变量来交换两个输入值
>>> a,b=1,2
>>> a,b=b,a
>>> a,b
(2, 1)
>>>
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