PDB python built-in debugger

PDB

The following content is from Baidu Feijiang's tutorial
A sample program

import pdb
import sys

def add(num1=0, num2=0):
    return int(num1) + int(num2)
    
def sub(num1=0, num2=0):
    return int(num1) - int(num2)
    
def main():
    #Assuming our inputs are valid numbers
    num1 = 33
    num2 = 44
    pdb.set_trace() # <-- 这个表示添加断点
    addition = add(num1, num2)
    print (addition)
    subtraction = sub(num1, num2)
    print (subtraction)
    
if __name__ == '__main__':
    main()

operate

• n Execute the next line
• print p num1, num2
• pdb.set_trace() to set a breakpoint
• b dynamically set the endpoint
• Variables can be allocated dynamically
• quit q
• enter repeats previous command
• c continue
• l current location
• s enters a subroutine
• r run until the end of the subroutine
• a Print the parameters of the current function
• j jump