Demo for python pdb

demo.py

def printer(value):
    print(value.upper())

def looper():
    vals = ['hello', 'world', 'and', 'ldp']
    for val in vals:
        printer(val)

def problem_child():
    raise NotImplementedError


if __name__ == '__main__':
    looper()
    variable = 7  # here to show scope
    problem_child()

plan.md

How to start pdb

• python -m pdb pdb_demo.py
• python -m pytest --pdb
• import pdb; pdb.set_trace()
• breakpoint()

Demo

• help
• next
• continue
• breakpoint
• up
• down
• jump
• conditions

python shell

• run python commands
• jump to python shell with local vars

test_demo.py

from demo import *
def tests_printer():
   val = 'hello'
   result = printer(val)
   assert result == 'Hello'