jichw的专栏

pip升级自己：$ pip install --upgrade pip查找与安装：使用search、install这两个参数。安装到用户目录：$ pip install pkg_name --user查看某个库的信息：$ pip show Jinja2---Name: Jinja2Version: 2.7.3Location: /path/t...

id(object) -> integerReturn the identity of an object. This is guaranteed to be unique amongsimultaneously existing objects. (Hint: it's the object's memory address.) 使用：id(obj) id(o...