Ruby equivalent for Python's "try"?

python python-3.x ruby try-catch language-comparisons
thatonegirlo picture thatonegirlo · Sep 9, 2013 · Viewed 28k times · Source

I'm trying to convert some Python code into Ruby. Is there an equivalent in Ruby to the try statement in Python?

Answer

Óscar López picture Óscar López · Sep 9, 2013

Use this as an example:

begin  # "try" block
    puts 'I am before the raise.'  
    raise 'An error has occurred.' # optionally: `raise Exception, "message"`
    puts 'I am after the raise.'   # won't be executed
rescue # optionally: `rescue Exception => ex`
    puts 'I am rescued.'
ensure # will always get executed
    puts 'Always gets executed.'
end

The equivalent code in Python would be:

try:     # try block
    print('I am before the raise.')
    raise Exception('An error has occurred.') # throw an exception
    print('I am after the raise.')            # won't be executed
except:  # optionally: `except Exception as ex:`
    print('I am rescued.')
finally: # will always get executed
    print('Always gets executed.')

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