if error in pythn code example

Example 1: try catch python

try:
  print("try to run this block")
except:
  print("run this bock if there was error in earlier block")

Example 2: python raise exception

# this raises a "NameError"

>>> raise NameError('HiThere')

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
NameError: HiThere