[Introduction]
【Instructions】
1. Use the command:
python -m pdb xxx.py # can directly enter the single-step mode
2. Set a breakpoint debugging where it is needed (more commonly)
import pdb
pdb.set_trace()
[Common Syntax
| break or b |
Set a breakpoint |
| continue or c |
Continue program execution to the next breakpoint |
| list or l |
View the current code segment line |
| step or s |
Enter the function |
| return or r |
Executing code from the current until the function returns |
| exit or q |
Abort and exit |
| next or n |
The next line |
| clear or cl |
Clear Breakpoint |
| p or pp |
Print variable values |
| cl |
Clear Breakpoint |
| help |
help |
b # print breakpoint location
b + lineno # set a breakpoint in this line
b + file: lineno # ibid.
b + function # set a breakpoint in the first line of the function
tbreak # temporary breakpoint, and b the same, but the execution will end automatically deleted
cl # Clear all breakpoints
cl + filename: lineno # Clear breakpoints
l + View vertical starting line number # Five
l + starting line number, line number # to see the end of a period of
[Other] command
| jump or j |
Execution to line number |
| w |
Print function stack |
| disable |
Disable Breakpoint |
| enable |
Enable Breakpoint |
| args or a |
Lists the functions currently executing function |
| run |
Restart debug, equivalent to restart |
【note】
1. When debug can change the value of the variable.
2. Direct Input Enter, will execute the command.
3. The first explanation, input commands do not know PDB, PDB python treats it as a normal command execution.