查看python库的版本-python中查看第三方库的版本号

（1）方法一

import scrapy

scrapy.__version__

Out[13]: '1.5.1'

（2）方法二

help(scrapy)

Help on package scrapy:

NAME

scrapy - Scrapy - a web crawling and web scraping framework written for Python

PACKAGE CONTENTS

__main__

_monkeypatches

cmdline

command

commands (package)

conf

contracts (package)

contrib (package)

contrib_exp (package)

core (package)

crawler

downloadermiddlewares (package)

dupefilter

dupefilters

exceptions

exporters

extension

extensions (package)

http (package)

interfaces

item

link

linkextractor

linkextractors (package)

loader (package)

log

logformatter

mail

middleware

pipelines (package)

project

resolver

responsetypes

selector (package)

settings (package)

shell

signalmanager

signals

spider

spiderloader

spidermanager

spidermiddlewares (package)

...