In the old days, we used import pdb and pdb.set_trace() to debug
For example, we create a file called ‘main.py’ and enter the following.
import pdb
def hello():
print('hello1')
print('hello2')
y = 2
z = 3
x=True
pdb.set_trace()
print(y+z)
print(x+x)
hello()
pdb.set_trace()
print(x+y)
But now, we just need to use breakpoint() replace pdb.set_trace().
def hello():
print('hello1')
print('hello2')
y = 2
z = 3
x=True
breakpoint()
print(y+z)
print(x+x)
hello()
breakpoint()
print(x+y)
The followings are the command for debugger
h: help
w: where
n: next
s: step (steps into function)
c: continue
p: print
l: list
q: quit
b: show all break points
b 8: set break point at line 8
b hello: set break point at function 'hello'
cl: clear all break points
cl 8: clear break point at line 8
Go to terminal and type ‘python main.py’
For example, we can type h to help and w to see where this file is.