$ python blog_crawler.py
How many blog pages you need?: 1
Traceback (most recent call last):
File "blog_crawler.py", line 70, in
total_page_crawler(page_need)
File "blog_crawler.py", line 64, in total_page_crawler
each_page_crawler(images, p)
File "blog_crawler.py", line 56, in each_page_crawler
write_file(jsonfile, i, p)
File "blog_crawler.py", line 32, in write_file
f = open('data/FoodBlog_{0:02d}.json'.format(i+(p-1)*10), 'w')
IOError: [Errno 2] No such file or directory: 'data/FoodBlog_01.json'