Decompressing bz2 in multiple sub-directories

[nilamo]

You could .enumerate() os.walk() and files, but that might just make your code hard to read (and your counter would skip a few, so you'd have 1.json, then a 3.json without a 2).  Here's how I'd do it, nice and simple:

for dirpath, dirname, files in os.walk('/Users/mymac/Documents/Jupyter/Twitter/1 day test'):
   file_counter = 0
   for filename in files:
       if filename.endswith('.json.bz2'):
           filepath = os.path.join(dirpath, filename)
           file_counter += 1
           newfilepath = os.path.join(dirpath, "{0}.json".format(file_counter))