vals = ['a', 'b', 'c', 'd']
pos = input("Get the value at what position? ")
try:
    position = int(pos)
    value = vals[position]
#Different clauses for different errors
except ValueError:
    print('Unable to convert "'+pos+'" into an integer.')
    position = len(vals)-1
except IndexError:
    print('Invalid position in list.')
#except Exception:
#    print("Unknown error occurred.")

print(position, type(position))
print(value, type(value))


#Combining some except clauses
#except (ValueError, IndexError):
#    print('Error with input.')
#except ZeroDivisionError:
#    print('Cannot divide by zero.')

#Catch "generic" exceptions
#except Exception:
#    print("Unknown error occurred.")

#except:
#    print("Unknown error occurred.")