如何用Python 2.5.1帮助文档设置，相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。
Python 2.5.1 帮助文档设置问题
Python 2.5.1 (r251:54863, Apr 8 2008, 01:20:16)
[GCC 4.3.0 20080404 (Red Hat 4.3.0-6)] on linux2
Type "help", "copyright", "credits" or "license"
for more information.
>>> help('print')
Sorry, topic and keyword documentation is not
available because the Python
HTML documentation files could not be found.
If you have installed them,
please set the environment variable PYTHONDOCS
to indicate their location.
On the Microsoft Windows operating system, the
files can be built by
running "hh -decompile . PythonNN.chm" in the
C:\PythonNN\Doc> directory.
>>>
操作系统是fedora 9。首先，下载帮助文档。然后，解压至/home/sword/下载/Python-Docs-2.5
[sword@localhost Python-Docs-2.5]$ ls about.html api doc icons inst mac ref whatsnew acks.html dist ext index.html lib modindex.html tut [sword@localhost Python-Docs-2.5]$ pwd在Python 2.5.1 帮助文档设置问题中你需要在/home/sword/下载/Python-Docs-2.5***，修改配置文件~/.bash_profile，末尾加一句：PYTHONDOCS=/home/sword/下载/Python-Docs-2.5export PYTHONDOCS
$ python
Python 2.5.1 (r251:54863, Apr 8 2008, 01:20:16)
[GCC 4.3.0 20080404 (Red Hat 4.3.0-6)] on linux2
Type "help", "copyright", "credits" or "license"
for more information.
>>> help('print')
6 The print statement
print_stmt ::= "print" ( [expression[1] (","
expression[2])* [","]]
| ">>" expression[3] [("," expression[4])+ [","]] )
Download entire grammar as text.[5]
...
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