python 遇到的问题及解答

1.使用pip安装python 模块

1. 　打开cmd
2. 　输入pip install *，如pip install numpy
3.    等待安装（如下）

C:\WINDOWS\System32>pip install numpy
Collecting numpy
  Downloading numpy-1.14.1-cp36-none-win_amd64.whl (13.4MB)
    100% |████████████████████████████████| 13.4MB 59kB/s
Installing collected packages: numpy
Successfully installed numpy-1.14.1

　　问题：提示 invalid syntax

　　解决方案：pip install 是在windows环境下安装的，而非在python环境下，所以要退出python环境

C:\WINDOWS\System32>python
Python 3.6.0 (v3.6.0:41df79263a11, Dec 23 2016, 08:06:12) [MSC v.1900 64 bit (AMD64)] on win32
Type "help", "copyright", "credits" or "license" for more information.
>>> pip install numpy
  File "<stdin>", line 1
    pip install numpy
              ^
SyntaxError: invalid syntax
>>> ^Z


C:\WINDOWS\System32>>pip install