用python搞了一個從excel中讀取cobbler節點信息並加入cobbler中的腳本，運行的過程中出了不少問題，這里記錄下來，方便日后查找！
一、yum install python，我通過這個命令安裝python，默認安裝的是2.6的版本，但是當我把python 2.6安裝完成后，發現cobbler的WEB管理頁面無法打開了，查看apahce的錯誤日志：
[Sun Jul 07 20:13:01 2013] [error] [client 192.168.21.94] ImportError: cannot import name urandom [Sun Jul 07 20:13:02 2013] [error] [client 192.168.21.94] File does not exist: /var/www/html/favicon.ico [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] mod_wsgi (pid=10816): Target WSGI script '/usr/share/cobbler/web/cobbler.w sgi' cannot be loaded as Python module. [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] mod_wsgi (pid=10816): Exception occurred processing WSGI script '/usr/shar e/cobbler/web/cobbler.wsgi'. [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] Traceback (most recent call last): [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/share/cobbler/web/cobbler.wsgi", line 9, in <module> [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] import django.core.handlers.wsgi [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/lib/python2.6/site-packages/django/core/handlers/wsgi.py", li ne 10, in <module> [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] from django import http [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/lib/python2.6/site-packages/django/http/__init__.py", line 12 3, in <module> [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] from django.utils.http import cookie_date [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/lib/python2.6/site-packages/django/utils/http.py", line 7, in <module> [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] from email.Utils import formatdate [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/lib64/python2.6/email/__init__.py", line 79, in __getattr__ [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] __import__(self.__name__) [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/lib64/python2.6/email/utils.py", line 27, in <module> [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] import random [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] File "/usr/lib64/python2.6/random.py", line 47, in <module> [Sun Jul 07 20:31:09 2013] [error] [client 192.168.21.94] from os import urandom as _urandom
缺少urandom模塊，python2.6版本里默認沒有這個模塊，隨即將python升級到2.7版本。
升級過程：
1、下載Python 2.7源碼：
wget http://www.python.org/ftp/python/2.7.2/Python-2.7.2.tgz
下載
2、解壓源碼包：
tar -zxvf Python-2.7.2.tgz
3、編譯：
cd Python-2.7.2
./configure --prefix=/usr
4、make&&make install
安裝完成后測試web界面可以正常打開了，但是使用yum安裝軟件的時候會發現不能使用，原因是yum與python有依賴關系，yum是急於python寫的，運行yum命令時會調用pyton；
vi /usr/bin/yum
將#！/usr/bin/pyton 改成：#！/usr/bin/pyton2.6，改成你系統默認的版本即可，不然他會調用高版本的python軟件包，但是是找不到的，需要做相關配置才行，這里為了方便就直接改了就可以使用了。
二、在安裝了python2.7后執行cobbler的相關命令也會有問題
[root@cobbler scripts]# ./addnode2.py cobbler.xls
add test1 aa:bb:cc:dd 19:2.:16:8.:0.:2
add test2 aa:bb:cc:dd 19:2.:16:8.:0.:3
[root@cobbler scripts]# Traceback (most recent call last):
File "/usr/bin/cobbler", line 17, in <module>
import cobbler.cli as app
ImportError: No module named cobbler.cli
Traceback (most recent call last):
File "/usr/bin/cobbler", line 17, in <module>
import cobbler.cli as app
ImportError: No module named cobbler.cli
[root@cobbler scripts]# cobbler get-loaders
Traceback (most recent call last):
File "/usr/bin/cobbler", line 17, in <module>
import cobbler.cli as app
ImportError: No module named cobbler.cli
這也是由於python版本導致的，同樣：vi /usr/bin/cobbler
將調用的python版本修改為2.6即可。
三、補充：關於安裝EasyInstall 遇到的問題：
下載：
wget http://pypi.python.org/packages/2.7/s/setuptools/setuptools-0.6c11-py2.7.egg
安裝：
sh setuptools-0.6c11-py2.7.egg
報錯：
Traceback (most recent call last): File "<string>", line 1, in <module> zipimport.ZipImportError: can't decompress data; zlib not available
解決方法：
1、安裝依賴zlib、zlib-devel
2、重新編譯安裝Python
./configure 編輯Modules/Setup文件 找到下面這句，去掉注釋 #zlib zlibmodule.c -I$(prefix)/include -L$(exec_prefix)/lib -lz 重新編譯安裝：make & make install