pdb 是 Python 标准库中自带的 debugger，ipdb 是基于 ipython 的增强版 pdb。

常用命令

• [n]ext 下一步
• [s]tep into 进入函数
• [r]eturn 跳出函数
• [b]reakpoint 打断点

pdb

pdb is fine, just don’t have so many features

Usage: import pdb; pdb.set_trace()

Ipdb is better

Usage: import ipdb; ipdb.set_trace()
n next
p print
pp pprint
s setp into
c continue to next breakpoint
b breakpoint
a args