# 介紹 [](https://github.com/CoderAngle/python3-spider-note) 爬蟲筆記地址:[https://xintiaohuiyi.gitbook.io/python3-spider-note/](https://xintiaohuiyi.gitbook.io/python3-spider-note/) python使用版本:python3 \(python3網絡爬蟲開發實戰筆記\) ## pip換源 ```text pip源: 豆瓣：http://pypi.douban.com/simple/ 清華：https://pypi.tuna.tsinghua.edu.cn/simple ``` ### 第一種:暫時性換源 有時候pip下載速度有點慢，可以換成國內源提升一下速度 ```text pip install -i https://pypi.doubanio.com/simple/ 包名 pip install -i https://pypi.doubanio.com/simple/ flask ``` ### 第二種:永久換源 永久換源的方法如下: linux下，修改 ~/.pip/pip.conf \(沒有就創建一個\)， 修改 index-url，內容如下： ```text [global] index-url = https://pypi.tuna.tsinghua.edu.cn/simple ``` windows下，直接在用戶目錄中創建一個pip目錄，如：C:\Users\miku\pip，新建文件pip.ini，內容如下 ```text [global] index-url = https://pypi.tuna.tsinghua.edu.cn/simple ```  ## IDE工具 為了提升編碼速度，需要好的編譯器，推薦使用pycharm 以下是pycharm破解,使用2017版本就可以了 ```text http://idea.lanyus.com/ -javaagent: E:\JetBrains\WebStorm 2018.1\lib\JetbrainsCrack-2.7-release-str ThisCrackLicenseId-{ "licenseId":"ThisCrackLicenseId", "licenseeName":"idea", "assigneeName":"", "assigneeEmail":"idea@163.com", "licenseRestriction":"For This Crack, Only Test! Please support genuine!!!", "checkConcurrentUse":false, "products":[ {"code":"II","paidUpTo":"2099-12-31"}, {"code":"DM","paidUpTo":"2099-12-31"}, {"code":"AC","paidUpTo":"2099-12-31"}, {"code":"RS0","paidUpTo":"2099-12-31"}, {"code":"WS","paidUpTo":"2099-12-31"}, {"code":"DPN","paidUpTo":"2099-12-31"}, {"code":"RC","paidUpTo":"2099-12-31"}, {"code":"PS","paidUpTo":"2099-12-31"}, {"code":"DC","paidUpTo":"2099-12-31"}, {"code":"RM","paidUpTo":"2099-12-31"}, {"code":"CL","paidUpTo":"2099-12-31"}, {"code":"PC","paidUpTo":"2099-12-31"} ], "hash":"2911276/0", "gracePeriodDays":7, "autoProlongated":false} ``` [下載地址](https://pan.baidu.com/s/1si1u-15AhTkWq2bRdkascQ ) 密碼：v97f ## Linux中切換python版本 首先先來看一下我們的默認Python版本 ```text $ python --version Python 2.7.6 ``` 然后我們修改一下別名 ```text $ alias python='/usr/bin/python3' $ python --version Python 3.4.3 # 版本已經改變 ```