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windows7 安装 Scrapy

##windows7 安装 Scrapy##

1.打开cmd.exe输入命令:

C:\Users\admin>python
    先看是否已经安装python,没有就安装python,此处省略安装python。           

2.假设已经安装有python,查看是否已经安装好pip

C:\Users\admin>pip           
a. 没有就去下载pip

    网址如下:https://pypi.python.org/pypi/pip#downloads
    下载这个压缩包:pip-9.0.1.tar.gz (md5, pgp)

b. 解压到指定目录,进入pip-9.0.1目录,输入此命令

    python setup.py install

c. 如果出现以下错误:

    Traceback (most recent call last):  
      File "setup.py", line 31, in <module>  
        from setuptools import setup, find_packages  
    ImportError: No module named setuptools  

d. 就安装setuptools:

    网址:https://pypi.python.org/pypi/setuptools
    下载这个压缩包:setuptools-38.5.2.zip (md5)

f. 解压到指定目录,进入setuptools-38.5.2目录,输入此命令

    python setup.py install

g. 如果出现以下错误:

    running build_ext
        building 'twisted.test.raiser' extension
        error: Microsoft Visual C++ 14.0 is required. Get it with "Microsoft Visual
    C++ Build Tools": http://landinghub.visualstudio.com/visual-cpp-build-tools

    网址:https://www.lfd.uci.edu/~gohlke/pythonlibs/#twisted

h. 下载二选一:
            Twisted‑17.9.0‑cp36‑cp36m‑win_amd64.whl(看系统位数下载)
            Twisted‑17.9.0‑cp36‑cp36m‑win32.whl(看系统位数下载)           
C:\Users\admin>pip install Scrapy
    成功后提示:
    Installing collected packages: Scrap
    Successfully installed Scrapy-1.5.0           
C:\Users\admin>pip install pypiwin32           

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