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Python 的导入陷阱:为什么你的模块加载有时候很慢
Python的import机制不像C的#include那样做文本替换。每次import,Python要做三件事:定位模块文件、编译字节码、执行模块顶层代码。 你的Flask应用启动要8秒。其中6秒花在了导入模块上。而你真正用到的,可能只有那6秒里10%的代码。 这不是夸张。打开任何一个中型 ...
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