Code

class RocketNotReadyError(Exception):
pass


def personnel_check():
try:
print("\tThe captain's name is", crew[0])
print("\tThe pilot's name is", crew[1])
print("\tThe mechanic's name is", crew[2])
print("\tThe navigator's name is", crew[3])
except IndexError as e:
raise RocketNotReadyError('Crew is incomplete') from e


def fuel_check():
try:
print('Fuel tank is full in {}%'.format(100/0))
except ZeroDivisionError as e:
raise RocketNotReadyError('Problem with fuel gauge') from e

def batteries_check():
# add your own implementation
pass

def circuits_check():
# add your own implementation
pass


crew = ['John', 'Mary', 'Mike']
fuel = 100
check_list = [personnel_check, fuel_check, batteries_check, circuits_check]

print('Final check procedure')

for check in check_list:
try:
check()
except RocketNotReadyError as f:
print('RocketNotReady exception: "{}", caused by "{}"'.format(f, f.__cause__))