Python's functional module [4], pdb/ipdb, enables single-step debugging of Python

pdb/ipdb modules /pdb/ipdb module

The main role of PDB and IPDB is for single-step debugging of Python programs, and Python debugging can refer to links.

Here is a simple example of using

1 Import ipdb   2   3 i = 0  4 while i<100:  5     Print  (i)  6    ipdb.set_trace ()  7     i + = 1  

Once you run the code, you can step through it, as long as you enter the instructions

Note:

1. Please try to avoid using Python's own idle operation, because the idle error will not find stdout,-.-| |.

2. pdb/ipdb debugging can use the Set_trace () function to set breakpoints, but it is worth noting that pdb/ipdb are difficult to support multi-threaded debugging, multi-threaded debugging can refer to the above link using pycharm.

The commands commonly used by the PDB are

     

Command	Explain
Break or b Set Breakpoints	Set breakpoints
Continue or C	Continue to execute the program
List or L	View the code snippet for the current row
Step or s	Enter function
return or R	Executes the code until it returns from the current function
Exit or Q	Abort and exit
Next or N	Executes the next line
Pp	Print the value of a variable
Help	Help

Reference Links

https://www.ibm.com/developerworks/cn/linux/l-cn-pythondebugger/

Python's functional module [4], pdb/ipdb, enables single-step debugging of Python