scrapy安装报错与setting文件解读

安装scrapy报错

报错ModuleNotFoundError: No module named 'win32api'错误

解决方案：pip install pypiwin32或者pip install -i https://pypi.douban.com/simple pypiwin32

setting文件详解

# -*- coding: utf-8 -*-

# Scrapy settings for tencenthr project
#
# For simplicity, this file contains only settings considered important or
# commonly used. You can find more settings consulting the documentation:
#
#     https://doc.scrapy.org/en/latest/topics/settings.html
#     https://doc.scrapy.org/en/latest/topics/downloader-middleware.html
#     https://doc.scrapy.org/en/latest/topics/spider-middleware.html

#爬虫名字
BOT_NAME = 'tencenthr'   
#爬虫的位置
SPIDER_MODULES = ['tencenthr.spiders']  
#新建爬虫的位置
NEWSPIDER_MODULE = 'tencenthr.spiders'


# Crawl responsibly by identifying yourself (and your website) on the user-agent
#浏览器的用户标识
USER_AGENT = 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.62 Safari/537.36'

# Obey robots.txt rules
#是否遵守robot协议，默认是遵守
ROBOTSTXT_OBEY = True

# Configure maximum concurrent requests performed by Scrapy (default: 16)
#设置最大并发请求，默认是16
#CONCURRENT_REQUESTS = 32

# Configure a delay for requests for the same website (default: 0)
# See https://doc.scrapy.org/en/latest/topics/settings.html#download-delay
# See also autothrottle settings and docs

#下载延时
#DOWNLOAD_DELAY = 3
# The download delay setting will honor only one of:
#每个域名的最大并发请求数
#CONCURRENT_REQUESTS_PER_DOMAIN = 16
#每个ip的最大并发请求数
#CONCURRENT_REQUESTS_PER_IP = 16

# Disable cookies (enabled by default)
#默认是开启的，即请求下一个URL地址带上cookie
#COOKIES_ENABLED = False

# Disable Telnet Console (enabled by default)
# 控制台插件
#TELNETCONSOLE_ENABLED = False

# Override the default request headers:
#默认请求头
#DEFAULT_REQUEST_HEADERS = {
#   'Accept': 'text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8',
#   'Accept-Language': 'en',
#}

# Enable or disable spider middlewares
# See https://doc.scrapy.org/en/latest/topics/spider-middleware.html
#爬虫中间件和权重
#SPIDER_MIDDLEWARES = {
#    'tencenthr.middlewares.TencenthrSpiderMiddleware': 543,
#}

# Enable or disable downloader middlewares
# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html
#下载中间件和权重
#DOWNLOADER_MIDDLEWARES = {
#    'tencenthr.middlewares.TencenthrDownloaderMiddleware': 543,
#}

# Enable or disable extensions
# See https://doc.scrapy.org/en/latest/topics/extensions.html
#插件和权重
#EXTENSIONS = {
#    'scrapy.extensions.telnet.TelnetConsole': None,
#}

# Configure item pipelines
# See https://doc.scrapy.org/en/latest/topics/item-pipeline.html
#指定pipline,和权重
ITEM_PIPELINES = {
   'tencenthr.pipelines.TencenthrPipeline': 300,
}
LOG_LEVEL = 'WARNING'
# Enable and configure the AutoThrottle extension (disabled by default)
# See https://doc.scrapy.org/en/latest/topics/autothrottle.html
#自动限速
#AUTOTHROTTLE_ENABLED = True
# The initial download delay
#AUTOTHROTTLE_START_DELAY = 5
# The maximum download delay to be set in case of high latencies
#AUTOTHROTTLE_MAX_DELAY = 60
# The average number of requests Scrapy should be sending in parallel to
# each remote server
#AUTOTHROTTLE_TARGET_CONCURRENCY = 1.0
# Enable showing throttling stats for every response received:
#AUTOTHROTTLE_DEBUG = False

# Enable and configure HTTP caching (disabled by default)
#http缓存
# See https://doc.scrapy.org/en/latest/topics/downloader-middleware.html#httpcache-middleware-settings
#HTTPCACHE_ENABLED = True
#HTTPCACHE_EXPIRATION_SECS = 0
#HTTPCACHE_DIR = 'httpcache'
#HTTPCACHE_IGNORE_HTTP_CODES = []
#HTTPCACHE_STORAGE = 'scrapy.extensions.httpcache.FilesystemCacheStorage'