import os

course_code=input('We will follow the naming pattern of {class}_L{lecture number}.md, enter the course code to start.\n')
start=input('enter the number of lecture that you are going to start.\n')
end=input('Enter the end of lecture (exclusive).\n')
start=int(start)
end=int(end)

cur_dir = os.path.dirname(os.path.abspath(__file__))

while start<end:
    # create a empty text file
    file_name = os.path.join(cur_dir, f'{course_code}_L{start}.md')
    fp = open(file_name, 'w')
    fp.write(f'# Lecture {start}')
    fp.close()
    start+=1

print("Complete")