upgrade python 2.4.3 to 2.5.5 in Centos 5.5 or 5.6

http://www.python.org/ftp/python/2.5.5/Python-2.5.5.tar.bz2

tar jxf Python-2.5.5.tar.bz2
cd Python-2.5.5
./configure
make
make test
make install

"SyntaxError: invalid syntax" with python 2.4

在python 2.4 使用try-except-finally 時出現(如下), 是因為要到python 2.5 時才完全支援try-except-finally

File "try-except.py", line 13
    finally:
          ^
SyntaxError: invalid syntax

in python 2.4 可以改用

try:
    try:
    except:
finally:

Upgrade CentOS 5.5 to 5.6

yum clean all
yum update glibc\*
yum update yum\* rpm\* pyth\*
yum clean all
yum update mkinitrd nash
yum update selinux\*
yum update
shutdown -r now

Reference:
[] http://wiki.centos.org/zh-tw/Manuals/ReleaseNotes/CentOS5.6

Upgrade CentOS 5.4 to 5.5

方法一:

yum clean all
yum update glibc\*
yum update yum\* rpm\* python\*
yum clean all
yum update
reboot

方法二:

Clean All Packages
# yum clean all

The following command will get a list of packages that are going to be updated.
# yum list updates

Lets begin upgrading CentOS 5.4 to 5.5
# yum update

Finally reboot the server for Kernel changes to take effect
# reboot

檢查版本
lsb_release  -a




[references]
http://www.how2centos.com/upgrading-centos-5-4-to-5-5/
http://www.unixmen.com/news-today/999-centos-55-is-out-upgrade-now-from-centos-54-to-55

常用的 Python指令及其說明

常用的 Python指令及其說明 [轉載: 我是孩子王

sys模組：

argv: 命令列參數。
exit([arg]): 結束程式。
exitfunc: 若有指定此函式，程式結束前會先呼叫此函式。

getopt模組：

getopt(args, options[, long_options]): 解譯命令列參數選項的工具。