mac安装scrapy并创建项目的实例讲解

python 
 
Python 2.7.12 (default, Jun 29 2016, 14:05:02) 
[GCC 4.2.1 Compatible Apple LLVM 7.3.0 (clang-703.0.31)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
> 

python3 
 
Python 3.5.3 (v3.5.3:1880cb95a742, Jan 16 2017, 08:49:46) 
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin 
Type "help", "copyright", "credits" or "license" for more information. 
> 

pip3 --version 
 
pip 9.0.1 from /Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages (python 3.5) 

pip3 install Scrapy 

Collecting scrapy
 Retrying (Retry(total=4, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x103aa2c88>: Failed to establish a new connection: [Errno 61] Connection refused',)': /simple/scrapy/
 Retrying (Retry(total=3, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x103aa29e8>: Failed to establish a new connection: [Errno 61] Connection refused',)': /simple/scrapy/
 Retrying (Retry(total=2, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x103aa2630>: Failed to establish a new connection: [Errno 61] Connection refused',)': /simple/scrapy/
 Retrying (Retry(total=1, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x103aa2f28>: Failed to establish a new connection: [Errno 61] Connection refused',)': /simple/scrapy/
 Retrying (Retry(total=0, connect=None, read=None, redirect=None)) after connection broken by 'NewConnectionError('<pip._vendor.requests.packages.urllib3.connection.VerifiedHTTPSConnection object at 0x103aa2be0>: Failed to establish a new connection: [Errno 61] Connection refused',)': /simple/scrapy/
 Could not find a version that satisfies the requirement scrapy (from versions: )
No matching distribution found for scrapy

Scrapy 1.4.0 - no active project
Usage:
 scrapy <command> [options] [args]
Available commands:
 bench   Run quick benchmark test
 fetch   Fetch a URL using the Scrapy downloader
 genspider  Generate new spider using pre-defined templates
 runspider  Run a self-contained spider (without creating a project)
 settings  Get settings values
 shell   Interactive scraping console
 startproject Create new project
 version  Print Scrapy version
 view   Open URL in browser, as seen by Scrapy
 [ more ]  More commands available when run from project directory
Use "scrapy <command> -h" to see more info about a command

scrapy startproject ArticleSpider（ArticleSpider为项目名称）