从PowerShell提示符

Question

我已经在目录C：\ python27中安装了python 2.7.4，并且我编辑了我的用户环境变量以包含：

Python       C:\python27;C:\python27\Tools\Scripts\pyscripts

（pyscripts是一个包含我的python程序的目录）

使用PowerShell 2009，在提示符PS C:\>中输入：

python trigrams.py

这会导致以下错误消息;

The term 'python ' is not recognized as the name of  a cmdlet, function, script file or operable program. Check the spelling of the name, or if a path was included, verify that the path name is correct and try again.
    *python <<<< chunks.py
    +CategoryInfo  :ObjectNotFound:<python:String> [].CommandNotFoundException
    +FullyQualifiedErrorID  :CommandNotFouindException

造成这种情况的原因是什么？

Answer 1

您的PATH变量不包含C：\ python27