Is there a Python equivalent for Scala's Option or Either?

Question

I really enjoy using the Option and Either monads in Scala. Are there any equivalent for these things in Python? If there aren\'t, then what is the pythonic way of handling erro

Answer 1

In python, for an absence of value, the variable is None, so you can do it this way.

vars = None

vars = myfunction()

if vars is None:
     print 'No value!'
else:
     print 'Value!'

or even just check if a value is present like this

if vars is not None:
     print vars