python - Error handling methodology -

in c, if i'm not wrong, main function returns 0 if no errors occurred, , different 0 if error occurs.

is appropriate same in python (as long function not have return specific value 1 indicate success/failure); or instead handle exceptions?

in python shouldn't use return value indicate error. should use exceptions.

so, either let exception fired bubble up, or throw new one.

def check_foo(foo):     if foo == bar:         do_something(args)  try:     check_foo(...) except someerror:     # oops! failure!     something_went_wrong() else:     # yay! success!     everything_went_well() 

in cases makes sense have functions return boolean, shouldn't used indicate errors.

this typically used in routine checks may true or false, , neither exceptional (i.e. neither an error):

def is_foo(foo):     return foo == "foo"