# Functions are First-Class Citizens in Python 一等公民

# Functions are First-Class Citizens in Python 一等公民


https://cn.bing.com/search?form=MOZSBR&pc=MOZI&q=python++function++First+class+citizens

Python札记8：什么是first-class function？ - 知乎 https://zhuanlan.zhihu.com/p/60754224

co_freevars tuple of names of free variables (referenced via a function’s closure) 
 
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原文地址：https://www.cnblogs.com/rsapaper/p/13095826.html