https://docs.python.org/3/library/pdb.html

Standalone pdb

Calling a pdb in the start of the script

python -m pdb <script_name>

Setting a break point

b <line_bumber>

Continue the execution of the script until it reaches the break point

c

Quit from debug and stop the script

q

---

Set debug break point into the script

import pdb ... pdb.set_trace() # This should be placed where you want to stop for debuging

python .py # This is the call of the script

Call the interactive debug without debug placed into the script

pdb .py

Commands

Print all the object properties

(Pdb) p dir()