What libraries need to be installed for python crawler
Web crawlers (also known as web spiders, web robots, and more commonly known as web chasers in the FOAF community) are programs or scripts that automatically capture World Wide Web information according to certain rules.
#1. The environment that needs to be installed is mainly the Python environment and the database environment.
mongodb
redis
mysql
2. Some commonly used libraries
urillb
re
requests
selenium
phantomjs
lxml
beautifulsoup4
pyquery
pymysql
pymongo
redis
flask
django
jupyter
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