Common commands for IPDB debugging

Use ipdb debugging Python Code

1. Introduce ：IPDB What is it? ？IPDB（Ipython Debugger） It's an integrated Ipython Of Python Code command line debugging tool , Can be seen as PDB Upgraded version .

2. Installation and use

install ：pip install ipdb

Use ：import ipdb;

ipdb.set_trace();

imperative ：python -m pdb your_code.py

3. Common commands ：

help （h）help、

Next order （n）next,

Inside the function （s）step in,

Breaking point （b）break：

Use b line_number(break) To the designated Line number position plus breakpoint . Use b file_name:line_number Method to the specified file （ The code that has not been executed may be in an external file ） Place a breakpoint at the specified line number in .

Resume execution （c）continue

r(return): If the function is too long , You can execute directly to the part that returns the result .

Skip a piece of code （j）jump： This should be followed by the line number of the code .

Context command （l）list： List the context of the current statement to be executed .l The execution of will record the status , Every time you type l Which line of code above will be followed .ll—— Show all the code of the current function , The result of each execution is the same .

Use w(where) You can print out the current line number location and context information .

List all parameters of the current function (a)argument You can print out the values of all parameters passed into the function .

Use p(print) and pp(pretty print) You can print the value of an expression .

clear breakpoints ——cl(clear), Use cl perhaps clear file:line_number clear breakpoints . If there are no parameters , Clear all breakpoints .

Use restart Restart the debugger , Breakpoints and other information will be retained .restart the truth is that run Another name for , Use run args Pass in parameters in the same way .

Use q Exit debugging , And clear all information .

summary ： The above order is not ipdb All the orders of , Other commands need to refer to the documentation .