How to Hang Yourself With Exceptions

main.py

import other

def thrower():
    raise other.Exp1

def catcher():
    try:
        thrower()
    except other.Exp1, other.Exp2:
        pass


catcher()
x = other.Exp2("some message")

# Outputs:
# TypeError: 'Exp1' object is not callable
# ????????
# except other.Exp1, other.Exp2 is equivalent to
# except other.Exp2 as other.Exp2, creating an alias.
# Enjoy strange errors throughout your code :-)
# Correct:
# except (other.Exp1, other.Exp2):

other.py

class Exp1(Exception):
    pass

class Exp2(Exception):
    pass