Could you help me fix my code, please?

def discover_violations(directory,output):

"""

Searches the dataset directory for any flight lessons the violation regulations.

This function will call list_weather_violations() to get the list of weather violations.

If list_endorsment_violations (optional) is completed, it will call that too, as

well as list_inspection_violations.It will concatenate all of these 2d lists

into a single 2d list of violations (so a flight may be listed more than once for

each of the three types of violations).

If the parameter output is not None, it will create the CSV file with name output

and write the 2d list of violations to this file.This CSV file should have the

following header:

STUDENT,AIRPLANE,INSTRUCTOR,TAKEOFF,LANDING,FILED,AREA,REASON

Regardless of whether output is None, this function will print out the number of

violations, as follows:

'23 violations found.'

If no violations are found, it will say

'No violations found.'

Parameter directory: The directory of files to audit

Precondition: directory is the name of a directory containing the files 'daycycle.json',

'weather.json', 'minimums.csv', 'students.csv', 'teachers.csv', 'lessons.csv',

'fleet.csv', and 'repairs.csv'.

Parameter output: The CSV file to store the results

Precondition: output is None or a string that is a valid file name

"""

pass# Implement this function

list_weather_violations = list_weather_violations(directory)

list_endorsement_violations = list_endorsement_violations(directory)

list_inspection_violations = list_inspection_violations(directory)

total_len = len(list_weather_violations) + len(list_endorsement_violations) + (list_inspection_violations)

final_list = []

if total_len == 0:

print('No violations found.')

return final_list

print(str(total_len) + ' violations found.')

header = ["STUDENT","AIRPLANE","INSTRUCTOR","TAKEOFF","LANDING,FILED","AREA","REASON"]

final_list = []

for l in list_weather_violations:

final_list.append(l)

for l in list_endorsement_violations:

final_list.append(l)

for l in list_inspection_violations:

final_list.append(l)

with open(output, 'w', newline='') as file:

writer = csv.writer(file)

writer.writerows(final_list)

return final_list