python爬虫必装

Mac下

brew cask install chromedriver
brew install phantomjs

安装geckodriver

Traceback (most recent call last):
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/site-packages/selenium/webdriver/common/service.py", line 64, in start
    stdout=self.log_file, stderr=self.log_file)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 950, in __init__
    restore_signals, start_new_session)
  File "/Library/Frameworks/Python.framework/Versions/3.5/lib/python3.5/subprocess.py", line 1540, in _execute_child
    raise child_exception_type(errno_num, err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'geckodriver'

需要安装Mac下可以执行：

brew install geckodriver

安装MongoDB

brew install mongodb

启动MongoDB(有两种方式)

方式一:从上面的安装提示中可以看到启动MongoDB的方法:

mongod --config /usr/local/etc/mongod.conf

mongod.conf的内容是关于MongoDB的设置

systemLog://log 目录
destination: file
path: /usr/local/var/log/mongodb/mongo.log logAppend: true
storage://db目录
dbPath: /usr/local/var/mongodb net://网络地址 bindIp: 127.0.0.1

方式二:

brew services start mongodb

使用MongoDB

首先需要连接到MongoDB service:

mongo