Python replacement for goto

Question

Suppose I have a function that does a bunch of work in steps. Between each step I want to either continue or skip the rest of the steps. After the work is done an additional block of code should always be executed. I know that I could use try + finally for that, but it is not really error related and I don't want to throw fake exceptions. The way I do this right now is by abusing an infinite while loop with break statements to achieve some kind of goto. My question is: Is there a more idiomatic way than this?

# ugly goto hack
while True:
  do_work()

  if condition:
    break

  do_more_work()
  
  if condition:
    break

  do_even_more_work()

  if condition:
    break

  #....

  break

do_some_final_work()

Answer 1

The simplest option is nested if statements, reversing the conditions.

do_work()

if not condition:
    do_more_work()

    if not condition:
        do_even_more_work()

        if not condition:
            # ...

do_some_final_work()

To avoid deep nesting like this, you can use a status variable. We use the following pattern in code that executes a series of steps until some kind of failure happens. This often appears when performing a series of validations.

error = False
# code that executes do_work() and sets error = True if it fails

if not error:
    # code that executes do_more_work() and sets error = True if it fails

if not error:
    # code that executes do_even_more_work() and sets error = True if it fails

# ...

do_some_final_work()

error could also be an error message rather than just a boolean.