next-islice-default-method_sample.py

from itertools import islice

class MyObject:
    def __init__(self, text):
        self.text = text

    def text(self):
        return self.text

default_empty = type('obj', (object,), {'text': ''})

# Let's access element with index 0 aka first element
n = 0

out0 = (
  next(
      islice(
          [MyObject('mo1'), MyObject('mo2')],
          n,
          None
      ),
      default_empty
  )
).text

# Out:
# mo1



# Let's access element with index 100 (non existing)
n = 100

out100 = (
  next(
      islice(
          [MyObject('mo1'), MyObject('mo2')],
          n,
          None
      ),
      default_empty
  )
).text

# Out:
# <blank text>